Dometic VacuFlush 3300 Series User manual

1
CONCERTO®
ELECTRIC FLUSH, GRAVITY DISCHARGE TOILET
OWNER’S MANUAL
Dometic Corporation • Sanitation Systems
13128 State Rt 226, PO Box 38
Big Prairie, OH 44611
SeaLand Product Customer Service: 1-800-321-9886
(8:00 a.m. - 5:00 p.m. ET)
This manual must be read and under-
stood before installation, adjustment,
service, or maintenance is per-
formed. Modification of this product
can result in property damage.
WARNING
!
3300 Series
(with flush handle)
3400 Series
(with remote flush switch)

2
TABLE OF CONTENTS
Toilet Model Identification . . . . . . . . . . . . . . . . 2
Ordering Parts . . . . . . . . . . . . . . . . . . . . . . . . 2
Concerto Toilet Dimensions . . . . . . . . . . . . . . . 3
Toilet Installation Instructions . . . . . . . . . . 3 - 6
Remote Flush Switch Installation . . . . . . . . . . 7
Important Information Before Operation . . . . . 8
Electronic "Flush and Forget" Operation . . . . . 8
Toilet Controls . . . . . . . . . . . . . . . . . . . . . . . . . 8
Operating Instructions . . . . . . . . . . . . . . . . . . . 9
Automatic Flush Operation Timing Chart . . . . 9
Proper Cleaning and Maintenance . . . . . . . . 10
Manual Flush Operation . . . . . . . . . . . . . . . . 10
Winterizing . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Spare Parts . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Deodorants and Special Tissue . . . . . . . . . . 11
Flush Mechanism Components . . . . . . . . . . . 12
Electrical Specifications . . . . . . . . . . . . . . . . . 13
Troubleshooting . . . . . . . . . . . . . . . . . . . 14 – 17
Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . 18
Customer Service . . . . . . . . . . . . . . . . . . . . . 19
Limited Warranties . . . . . . . . . . . . . . . . . . . . 20
ORDERING PARTS
Dometic is ready to assist you in the event service is required. Before calling, please have the following information
available. Your cooperation in having this information ready is appreciated and allows us to better meet your needs.
Please refer to the Parts Distributor list in the Customer Service section.
1. Toilet Model Number
2. Serial Number
3. Part Number, Description and Quantity (see Parts List)
Read and understand the complete contents of this manual before operating or servicing the
toilet. Failure to follow these precautions may result in damage to the toilet.
WARNING – ELECTRICAL SYSTEM.
Turn off electrical power before servicing.
WARNING – MOTOR STARTS AUTOMATICALLY.
Turn off electrical power before servicing.
TOILET MODEL IDENTIFICATION
DOMETIC CORPORATION
P.O. BOX 38, 13128 STATE RT 226 [phone]
BIG PRAIRIE, OH 44611 USA
MODEL NO. 000
SERIAL NUMBER
000000
The model identification label is located on the inside
wall of the toilet under the access cover. It will show the
model number and serial number.
Concerto, SeaLand and Flush and Forget are registered trademarks of
Dometic Corporation.

3
TOILET INSTALLATION INSTRUCTIONS
System Requirements:
• 2 GPM (10.6 lpm) or larger water pump.
• 1/2-inch (12.7 mm) water line terminating in 1/2-inch MPT fitting (to connect to toilet water supply hose).
• 4-bolt floor (closet) flange. SeaLand flanges available include 3-inch spigot, socket, MPT, or 45-degree swivel
socket.
• 12 VDC through 7- or 8-amp fuse or circuit breaker. Use 14-gauge stranded copper wire.
IMPORTANT: If replacing an existing gravity-discharge toilet, make sure the center of the existing discharge
flange is at least 11-1/4 inches from the back wall, then proceed to Step 5 for proper positioning of water
line and electrical wiring.
STEP 1: Carefully unpack the toilet bowl, rear access lid and floor flange adapter. CAUTION: HANDLE THE VIT-
REOUS CHINA TOILET AND ACCESS LID WITH CARE. SET THE LID IN AN AREA WHERE IT CANNOT BE
BROKEN. PLACE LID ON TOILET ONLY AFTER TOILET INSTALLATION IS COMPLETE.
STEP 2: Position the china bowl in the space intended. Confirm that adequate clearance is available for using the
flush handle and opening the seat and lid.
STEP 3: Mark the floor at the rear corners of the toilet bowl (fig. 1). Measure the distance between the two marks
and divide by 2 to find the toilet centerline. Mark the floor at the rear wall for the centerline.
STEP 4: Place a carpenter’s square against the back wall, and draw a center line on the floor at least 14 inches
(356 mm) long (fig. 2). Mark the centerline for the floor flange at 11-1/4 inches (286 mm) from the wall (fig. 3).
Fig. 2
Fig. 1 Fig. 3
CONCERTOTM TOILET DIMENSIONS
Dimensions may vary
±3/8-inch (13mm).

4
STEP 5a: For through-the-floor water line and electrical
wires, mark another centerline 6 inches (152 mm) from
the back wall (fig. 4).
STEP 5b: For through-the-wall water line and electrical
wires, mark a centerline 8 inches (203 mm) up from the
floor centerline (fig. 5).
STEP 6: Make a 4-3/4 inch (121 mm) diameter hole (for
most floor flanges) or a 5-1/8 inch (130 mm) diameter
hole (for swivel joint floor flange) at the centerline mark
furthest from the wall. Make a 1 inch (25 mm) hole at the
mark closer to the wall for the water line and electrical
wires (fig. 6).
STEP 7: Insert floor flange into larger hole and secure
to the floor with #12x3/4-inch long flat head wood or
sheet metal screws (fig.7).
Fig. 5
Fig. 6
Fig. 4
IMPORTANT: The prefered floor flange installation
method is to mount the floor fIange directly on the
finished floor. However, if the bottom of floor flange
and bottom of china toilet must be mounted at differ-
ent heights, the floor flange must be mounted within
3/8 inch (10 mm) of the bottom of the toilet (see il-
lustrations in next column) or leakage may result.
Below-Floor Installation
STEP 8: Route 1/2-inch (13mm) PEX tubing through
the smaller hole and install a PEX 1/2-inch MPT fitting
(fig. 8).
NOTE: A water shut-off valve should be installed in the
water line to the toilet for maintenance requirements.
Fig. 7
Above-Floor Installation
Fig. 8

5
STEP 9: WITH THE ELECTRICAL POWER OFF, route
#14 gauge stranded copper wire from 12 VDC ground
and positive 12 VDC from the fuse panel through a 7- or
8-amp fuse or circuit breaker. Leave at least 30 inches
(305 mm) of wire for connecting to toilet (fig. 9).
STEP 10: Connect the holding tank to the bottom of the
discharge flange.
STEP 11: Slide the four T-bolts into the slots of the floor
flange. Install the flange gasket over the T-bolts (fig.
10).
Fig. 9
Fig. 10
STEP 12: Install floor flange adapter with words “THIS SIDE
UP” facing up. Tighten adapter to floor flange using four
flat washers and hex nuts. Tighten in criss-cross pattern
(fig. 11).
STEP 13: Temporarily set the toilet in place on the floor
flange (fig. 14).
STEP 14: Mark the holes for the two toilet mounting
bolts (fig. 15).
Fig. 16
STEP 15: Pick up toilet and set aside. Drill 3/16-inch
pilot holes in the floor (fig. 16).
Fig. 15
Fig. 14
Fig. 11
IMPORTANT: If replacing an existing toilet that uses
a 2-bolt floor flange, drill two 5/16-inch dia. holes in
old floor flange that align with two additional holes
in floor flange adapter. Use two #10 or 12 x 1-1/2-inch
wood screws and washers for these drilled holes,
and two T-bolts with flat washers and nuts to fasten
flange gasket and floor flange adapter to old floor
flange. Do not use old hardware or seal.
FOR MODEL 3400 TOILET
WITH REMOTE SWITCH
OPERATION, see page 7
for wall switch installation
instructions.

6
STEP 19: Set the toilet in place (fig. 19) and secure to
floor with the #14x2-1/2 inch long lag bolts (fig. 20). Install
decorative bolt caps by pushing them onto bolt heads
(fig. 21).
STEP 20: Place the rear access cover on the back of the
toilet. Press down firmly to seat the fastening strips.
STEP 21: Turn on electrical power and water to toilet.
Lift flush handle and fill toilet bowl with water. Wait one
hour, then inspect the floor around and under the rear of
the toilet for leaks or dampness.
If no leaks are present, toilet is ready for operation.
STEP 17: Insert the positive (+) 12 VDC wire into
position 1 of the green terminal block and tighten the
screw securely. Insert the negative (-) 12 VDC wire into
position 2 of the green terminal block and tighten the
screw securely (fig. 18).
Fig. 18
STEP 18: REMOVE RED CAP FROM MIDDLE
OF FLANGE ADAPTER BEFORE FINAL TOILET
INSTALLATION.
IMPORTANT – DO NOT ATTEMPT TO SLIDE THE
TOILET OVER THE FLANGE ADAPTER. THE
TOILET MUST BE SET DOWN OVER THE ADAPT-
ER TO PREVENT POSSIBLE DAMAGE.
Fig. 21
Fig. 20Fig. 19
STEP 16: With toilet close to floor flange, connect flex-
ible water supply hose to the water line fitting (fig. 17).
Fig. 17

7
MODEL 3400 REMOTE FLUSH SWITCH INSTALLATION
3400 series toilets feature a remote flush switch to control the “Flush” and “Add Water” functions. Follow
the instructions below for switch installation.
STEP 1: Select a location for the switch. 8 feet of cable (2.4 m) is provided. You may need to supply more wire,
depending on how far you locate the switch from the
toilet.
STEP 2: Cut an opening 1-1/4” wide x 1-5/8” high (see
diagram at right).
STEP 3: If installing the switch in a shallow wall, you
may need to use the spacer between the wall and the
switch assembly cover to allow space for the wire con-
nectors. If so, route the cable through the spacer before
proceeding to the next step.
STEP 4: Route the 3-conductor cable through wall
cut-out and on to toilet. Cable can be routed with water
supply line and power wires (see page 5, Step 9). Leave
a minimum of 30 inches (.76m) of cable to allow easy
wiring at toilet.
STEP 5: Fasten the switch assembly to the wall with
the #6x1” screws (included), making sure to install with
the label “THIS SIDE UP” on top. Otherwise, the “Flush”
and “Add Water” functions will be reversed.
STEP 6: Snap cover onto switch assembly to complete
switch installation on wall.
STEP 7: WITH THE ELECTRICAL POWER OFF,
connect the red, black and white wires from the switch
to the red, black and white wires connected to the 11,
12 and 13 terminals on the control module. See page
6, Step 17 for other wiring procedure.
1-5/8 inch
(41 mm)
Cover
outline
Spacer
outline
REMOTE FLUSH SWITCH COMPONENTS
1-1/4 inch (32 mm)

8
IMPORTANT INFORMATION BEFORE OPERATION
1. Fill freshwater tank and add deodorant to holding tank through toilet bowl.
2. Make sure all guests understand the operation of the toilet system. 3300 models:
This flushing instruction label is located under the seat, and is easily read when the
seat is raised. 3400 models: "Add Water" and "Flush" are clearly marked on the
remote switch.
3. Shut off the toilet system before servicing and do not leave the vehicle with toilet system circuit breaker on.
4. Never use drain openers, alcohol, solvents, etc. in the toilet.
5. If the toilet does not function properly, refer to the Troubleshooting section of this manual and repair as neces-
sary. If problem persists, contact your local SeaLand product dealer or see the Customer Service section of
this manual.
1. To add water to the toilet
before using (if neces-
sary), raise flush handle
until desired water level
is reached. (Water flow
will stop automatically
after a pre-programmed
period of time).
2. To flush toilet, press flush
handle down. Water will
flow into bowl for two sec-
onds, then flush ball will
open. Toilet will not flush
again until water refill cycle
is complete.
FLUSH HANDLE TOILET
TOILET CONTROLS
ACCESS COVER
OFF
FLUSH
ADD WATER
TO BOWL
OFF
FLUSH HANDLE
(3300 models)
CONTROL
SWITCH
Figure 1
ELECTRONIC FLUSH AND FORGET® OPERATION
REMOTE FLUSH
SWITCH TOILET
1. To add water to
bowl, press top
part of switch.
2. To flush, press
bottom part of
switch.
Do not dispose of san-
itary napkins or other
non-dissolving items in
toilet, such as facial tissue
or paper towels. These
items can cause plugging
of the system.
DO NOT FLUSH
FOREIGN OBJECTS
THROUGH TOILET
REMOTE FLUSH SWITCH
(3400 models)

9
AUTOMATIC FLUSH OPERATION TIMING CHART
1. Adding More Water To Toilet Bowl
Pull up the flush handle (3300 model) or push "Add Water" switch (3400 model) until the desired water level
is attained. To prevent overflowing the toilet, a timer inside the control module limits the amount of water that
can be added.
2. Flushing The Toilet
Push the flush handle down (3300 model) or push "Flush" switch (3400 model) for a moment, then release it.
Holding the handle or switch down will not prolong the flush cycle nor start a new flush cycle. The handle or
switch must be allowed to return to the neutral position before another flush can occur.
3. Mode Switch
The Mode switch is located on the right side of the control module. It lets you switch between three function
settings:
NORMAL
Use this setting for flushing the toilet.
SERVICE
Use this position for cleaning the toilet bowl and flush ball seal. The flush ball will open automatically and re-
main open in this position. Lifting up the flush handle or pushing the "Add Water" switch provides water to the
bowl.
MANUAL OVERRIDE
Use this position to flush the toilet manually in the event of power or battery failure. This switch disconnects
the electronic brake in the flush valve motor, and allows manual flushing via the override access hole in the
side of the vitreous china base.
Note: The control module allows 15 seconds of water flow for cleaning. If more water is required, return
the switch to the NORMAL position, then back to the SERVICE position.
A safety circuit in the control module monitors flush ball operation. If foreign objects or low voltage prevent the
flush ball from closing, this circuit prevents personal injury or damage to the flush valve motor. If this condi-
tion occurs, reset the control module by placing the Mode switch into the SERVICE position temporarily, then
returning it to the NORMAL position.
OPERATING INSTRUCTIONS
Flush and Forget® Cycle Time
Flush Cycle In Seconds
16
5 1284
1711
6 13 159 143 102 0
Water Valve
Flush Valve
Water flow
Opening
Held Open
Closing
“Add Water” Time
“Flush” Time

10
The Concerto toilet should be cleaned regularly for maximum sanitation and
operational efficiency. You can clean it just as you would a household toilet.
Do not use caustic chemicals, such as drain-opening types, as they will
damage the seals.
BOWL CLEANING: For stubborn stains, use SeaLand Bowl and Seal Cleaner
(Fig. A). It’s manufactured especially for use with SeaLand toilets. In certain
locations where water is hard, a build-up of lime may dull the toilet bowl finish.
Restore the shine with this cleaner. If you cannot find our brand in your area,
contact SeaLand Product Customer Service for your nearest dealer. If it is not
available, you can also use Bar Keepers Friend® cleanser. It is not necessary to
vigorously scrub with either product. Please follow label instructions.
SEAL CLEANING: After an extended time, mineral deposits from hard water
can build up under the edge of the rubber bowl seal, resulting in a slow leakdown
of water from the bowl. To prevent this mineral build-up, periodically clean under
the bowl seal with SeaLand Bowl and Seal Cleaner (Fig. B).
1. Put Mode switch in SERVICE position. Flush ball will open automatically.
2. Apply cleanser onto the seal cleaning tool (supplied with new toilet), and
scrub under seal. Make sure to push bristles between bottom of seal and
top of flush ball surface to scrub all parts of seal that come into contact with
flush ball.
3. Wait 2-3 minutes.
4. Pull up on flush handle or push "Add Water" switch to let water flow into bowl. Use cleaning tool and water to rinse
away cleanser and loosened deposits. You can add water for up to 15 seconds in the SERVICE position.
5. Put Mode switch in NORMAL position. Water will flow for a few seconds, then flush ball will close automatically.
Water will continue flowing into bowl, making it ready for the next flush.
Fig. B
PROPER CLEANING AND MAINTENANCE
Fig. A
MANUAL FLUSH OPERATION
In the event of an electrical failure, the flush ball of the toilet can be manually opened to clear the bowl. We recom-
mend using a long-neck screwdriver or 7/16-in. socket for the operation shown below. NEVER PRY OPEN THE
FLUSH BALL FROM INSIDE THE TOILET BOWL. Damage to the flush ball and bowl seals may result.
1. Remove access cover from top of china toilet. Place Mode
Switch in the "Manual Override" position. This disconnects
flush valve motor brake from electrical circuit.
2. Locate hole on side of china toilet. This allows access to
the flush valve motor drive arm.
3. Insert screwdriver or 7/16-in. socket through access hole
and onto hex head.
4. Turn screwdriver or socket counter-clockwise. This will
open flush ball and allow bowl contents to clear. After
bowl is clear, turn screwdriver or socket clockwise to
return flush ball to original position.
NOTES:
Water will not enter the toilet bowl during manual flush
operation.
Place Mode Switch in the "Normal" position before return-
ing to automatic operation.
Manual Override
position

11
WINTERIZING
At the end of each traveling season, the Concerto toilet system must be winterized for storage. The following
procedure should be used:
1. Pump out waste holding tank.
2. Thoroughly flush toilet system with fresh water.
3. Drain freshwater tank.
4. Add freshwater antifreeze to freshwater tank.
5. Flush freshwater antifreeze and water mixture through toilet and into the waste holding tank. Each installation
is different so amounts may vary. User discretion is required to assure adequate protection.
6. Turn off electrical power.
CAUTION: The use of freshwater antifreeze that contains alcohol will result in damage to your sanitation
system. Only use propylene glycol freshwater antifreeze that does not contain alcohol.
DEODORANTS AND SPECIAL TISSUE
Your Concerto toilet requires the regular addition of a deodorant product to reduce malodors and to help break down
holding tank contents. Several factors should be considered in selecting a deodorant product.
Liquid or Dry: Liquid products obviously work more quickly by readily going into solution. Granulated powder
formulations, on the other hand, have the advantage of requiring less storage space and are less likely to leak if the
package is inadvertently damaged.
Formaldehyde versus Non-Formaldehyde: Dometic manufactures both types of deodorants. Generally speak-
ing, formaldehyde formulas control odor very effectively at all temperatures and with all degrees of water hardness.
SeaLand Environment-Friendly brand, which is formaldehyde free, is similarly effective.
How Much Deodorant and How to Add It: The deodorant is added directly into the toilet bowl, then flushed into
the holding tank. Follow bottle or package instructions. Conditions of extremely warm weather, longer waste hold-
ing time and larger tank capacities may require more deodorant treatment. Also, to maintain optimum efficiency in
odor control, the waste holding tank should be cleaned thoroughly at least once or more each season, depending
on use.
Why Not Use Household Toilet Paper in Your ConcertoToilet? Household tissues often contain adhesives which
bond together the paper fibers from which the tissue is made. The adhesives prevent the tissue from breaking apart,
and their use in “ultra-low flow” systems can cause system clogging. SeaLand tissue is especially designed for use
in low water toilet systems. Its rapid dissolving properties minimize the amount of residual paper in the holding tank
and allow deodorizers to work more efficiently.
SeaLand versus Other Brands: SeaLand constantly strives to provide our system owners with effective products
that have minimal environmental impact and good value. Many deodorant products do not measure up to our
standards of performance and value.
SPARE PARTS
It is recommended that the following spare parts be kept available at all times:
Flush Ball Seal Kit
Flush Ball
Description Part Number Quantity
see parts list
see parts list
1
1
Water Valve
Vacuum Breaker Assembly
Description Part Number Quantity
see parts list
see parts list
1
1
SeaLand® Granulated
Deodorant
Six 2-oz.
pouches
Part No.
379626002
SeaLand®
Rapid-
Dissolving
Toilet Tissue
Four 400-sheet
rolls
Part No.
379441204
SeaLand® Liquid
Deodorant
Two 8-oz. bottles
Part No. 379224008
SeaLand® Liquid
Deodorant
- Environment
Friendly
32-oz. bottle
Part No.
379114032

12
Flush
Switch Flush
Handle
Cable
Flush
Handle
FLUSH MECHANISM COMPONENTS
Mode
Switch
Input for
Power
Cable
CONTROL MODULE
Input
for
Flush
Cable
Input for
Base Assembly Cable
FLUSH HANDLE COMPONENTS
(3300 series)
1. To access base
assembly components,
remove decorative screw
caps and unscrew two
bolts that hold china toilet
to floor.
2. Remove access
cover from top of china
and set it aside.
3. Lift china toilet
straight up from base
and set it down just in
front of floor flange.
Turn off water to
toilet and disconnect
flexible water line. Dis-
connect power wires
and/or flush switch
wires if necessary.
REMOTE FLUSH SWITCH
(3400 series)
Base Assembly
Cable
BASE ASSEMBLY COMPONENTS
(under china toilet)
Water Valve Flush Ball
Closed Limit
Switch
Motor
Drive Arm
Rotor Arm
Flush Valve
Motor
Flexible Water Supply Hose
Open Limit
Switch

13
TOILET SYSTEM ELECTRICAL SPECIFICATIONS
12VDC
Maximum standby current (amps): .070
Maximum operating current (amps): 6.5
Flush motor locked rotor current (amps): 14.5
Maximum voltage 15
Minimum voltage: 10
Input power wire size 14 ga.
All other wires size: 18 ga.
Fuse size (amps) 8

14
TROUBLESHOOTING
A volt/ohmmeter (VOM) and the Toilet Wiring Diagram may be required for this section.
Caution: Portions of this section will require that power be applied to the toilet. Keep hands away from
the flush ball, motor drive arm and rotor shaft to prevent personal injury during testing and troubleshooting.
The control module uses a microprocessor to provide all the automatic and timing functions. The module is under the
access cover. The control module has input and output status lights that can be used in troubleshooting the toilet.
The program in the microprocessor monitors the input and output signals during a normal flush cycle. If the inputs
or outputs do not follow the commands of the program, then the microprocessor may go into a "standby" mode and
flash an "error code.” The microprocessor is reset by placing the Mode switch in the SERVICE position temporarily,
then returning the switch to the NORMAL position.
A safety circuit in the control module monitors flush ball operation. If foreign objects or low voltage prevent the flush
ball from closing, this circuit prevents personal injury or damage to the flush valve motor. If this condition occurs,
reset the control module by placing the Mode switch into the SERVICE position temporarily, then returning it to the
NORMAL position.
CONTROL MODULE STATUS LIGHTS
Status Light
1 Valve Closed
2 Valve Open
3 Flush
4 Add Water
5 Water Valve
6 Status
7 +5V
Function
Flush valve Closed Limit Switch engaged.
Flush valve Open Limit Switch engaged.
Flush handle or wall switch in "Flush" position.
Flush handle or wall switch in "Add Water" position.
Electric water valve energized.
Status/error codes
Input power
Color
Green
Green
Green
Green
Green
Green
Green
VALVE CLOSED
VALVE OPEN
FLUSH
ADD WATER
WATER VALVE
STATUS
+5V
LED 7 LED 6 LED 5 LED 4 LED 3 LED 2 LED 1
Status Light
6
6
6
ERROR CODES
Condition
Mode Switch in SERVICE position
VALVE OPEN Limit Switch problem
VALVE CLOSED Limit Switch problem
No. of Flashes
1
1
2
Pause
.5 sec.
2 sec.
2 sec.

15
TROUBLESHOOTING (cont’d)
SYMPTOM 1. Toilet will not flush and water will not enter toilet bowl.
Condition
Mode Switch in SERVICE position.
Valve Open Limit Switch problem.
Valve Closed Limit Switch problem.
Corrective Action
Return Mode Switch to NORMAL position.
With the flush valve fully open, check the “VALVE OPEN” status light. If
the light is off, then the Valve Open Limit Switch is out of alignment or
defective, or related wiring is defective.
With flush valve in the fully closed position check the “VALVE CLOSED”
status light. If the light is off, then the Valve Closed Limit Switch is out
of alignment or defective, or related wiring is defective.
ERROR CODE CORRECTIVE PROCEDURES
TOILET OPERATION
Condition
+5V status light is off:
+5V status light is on:
Corrective Action
• Check toilet fuse or circuit breaker at DC distribution panel.
• Check for loose or defective wiring between control module and DC
distribution panel.
• Check for reverse polarity of input power to control module.
• If all of above check OK, replace control module.
• Input power must be 10 volts or higher.
• Check control module for error codes.
• Put Mode Switch in SERVICE position. If flush valve opens, go to
next step. If the flush valve does not open, go to Symptom 2.
• Put the Mode Switch in NORMAL position and push handle or switch
to "Flush" while observing “FLUSH” status light. The “FLUSH” status
light must come on when the switch is pushed and go off when the
switch is released. If the “FLUSH” status light did not follow com-
mands of switch, then flush switch or related wiring is defective.
SYMPTOM 2. Flush valve will not open when the Mode Switch is in the SERVICE position or when
the flush handle or switch is pushed to "Flush" while in the NORMAL position.
Procedure
Check the voltage output
to the flush valve motor at
pins 9 and 10 on the
control module as follows:
Corrective Action
• Pull the control module out as far as the control cables will allow.
• Disconnect either the purple or yellow wire from the Open Limit
Switch.
• With DC voltmeter test leads across pins 9 and 10, flip the Mode
Switch between the NORMAL and SERVICE positions. If voltage is
present for about two seconds in the SERVICE position, the flush
valve motor or related wiring is defective. If voltage is not present,
replace the control module.

16
TROUBLESHOOTING (cont’d)
SYMPTOM 3. Flush valve will not close.
Condition/Procedure
Mode Switch is in SERVICE
position:
Foreign object prevents the flush
valve from closing and the safety
circuit locked flush valve in open
position:
Check the voltage output to
the flush valve motor at
pins 9 and 10 on the control
module as follows:
Corrective Action
• Return switch to the “Normal” position.
• Reset the control circuit by putting the Mode Switch in the SERVICE
position temporarily, then returning to the NORMAL position. If the
flush valve did not close, go to next step.
• Pull the control module out as far as the control cables will allow.
• Disconnect either the orange or green wire from the Closed Limit
Switch.
• With DC voltmeter test leads across pins 9 and 10, flip the Mode
Switch between the SERVICE and NORMAL positions. If voltage is
present for about two seconds in the NORMAL position, the flush
valve motor or related wiring is defective.
• If voltage is not present, replace the control module.
SYMPTOM 4. Water will not enter toilet bowl during a flush and when the flush handle is raised
or the flush switch is pushed to “Add Water”.
Procedure
Check the “WATER VALVE”
status light while pushing the
"Flush" switch on the control
panel:
Corrective Action
• If the “WATER VALVE” status light comes on, the water valve filter
screen may be plugged with debris, or the water valve or its related
wiring is defective.
• If the “WATER VALVE” status light remains off, replace the control
module.
• If voltage is not present, replace the control module.
SYMPTOM 5. Flush valve will not open when Mode Switch is in the “Service” position but opens
during a normal flush cycle.
Corrective Action
• Replace control module.

17
TROUBLESHOOTING (cont’d)
SYMPTOM 6. Water will not stay in bowl.
Condition/Procedure
Put Mode Switch in “Service”
position:
Worn or damaged flush valve ball
and seal:
Corrective Action
• Clean underside of flush valve ball seal of dirt and debris.
• Remove toilet from floor and remove base assembly from toilet and
replace flush valve ball and seals.
SYMPTOM 7. Water will not shut off and overflows the toilet.
Procedure
Check the “WATER VALVE” status
light:
Corrective Action
• If the light is on when not flushing the toilet or adding water, replace
the control module. If the light responds correctly, go to next step.
• Dirt or debris lodged in the water valve seal. Remove the toilet from
the floor, disassamble and clean water valve.
• Replace water valve.
SYMPTOM 8. Water is leaking from under the toilet.
Procedure
Remove the toilet from the
floor and inspect the following
with both water and electrical
power applied:
(Place a container under the base
assembly to catch any water during
the inspection procedure.)
• Water hoses and fittings, water valve assembly
• China toilet bowl
• Upper base seal
• Flush valve ball rotor shaft shaft
• Base assembly

18
WIRING DIAGRAMS
3300 SERIES (with flush handle)
3400 SERIES (with remote flush switch)

19
CUSTOMER SERVICE
There is a strong, worldwide network to assist in servicing and
maintaining your sanitation system. For the Authorized Service
Center near you, please call from 8:00 a.m. to 5:00 p.m. (ET)
Monday through Friday. You may also write us at Dometic
Corp., P.O. Box 38, Big Prairie Ohio 44611.
Telephone: [phone] U.S.A. and Canada
330-496-3211 International
You may also contact or have your local dealer contact the Parts
Distributor nearest you for quick response to your replacement
parts needs. They carry a complete inventory for the SeaLand
product line.
Fax: [phone] U.S.A. and Canada
330-496-3220 International
U.S.A.
MASTER SANITATION
DISTRIBUTORS
U.S.A. – North Central
(IL, IN, KY, MI, OH)
Midwest Marine Supply
24300 Jefferson Ave.
St. Clair Shores, MI 48080
Tel: [phone]
800-860-1540
Fax: [phone]
E-mail: [email protected]
U.S.A. - Northeast
(CT, DE, DC, MA, MD, ME, NH, NJ, NY,
PA, RI, VA, VT, WV)
Northeast Marine Sanitation
69 Florida Street
Farmingdale, NY 11735
Tel: [phone]
800-352-4323
Fax: [phone]
888-283-7606
E-mail: northeast@northeastsanitation.
com
U.S.A. - Northwest
(AK, ID, MT, OR, WA, WY)
Marine Sanitation, Inc.
1900 N. Northlake Way, Suite 121
Seattle, WA 98103
Tel: [phone]
800-624-9111
Fax: [phone]
E-mail: [email protected]
U.S.A. - South Central
(AR, KS, LA, MO, MS, NM, OK, TX)
AER Supply
P.O. Box 349
2301 Nasa Road #1
Seabrook, TX 77586
Tel: [phone]
800-767-7606
Fax: [phone]
E-mail: [e-mail]
U.S.A. - Southeast
(AL, FL, GA, NC, PR, SC, TN, VI)
Environmental Marine
111 S.W. 23rd Street, Suite A
Fort Lauderdale, FL 33315
Tel: [phone]
800-522-2656
Fax: [phone]
E-mail: [email protected]
U.S.A. - Southwest
(AZ, CO, NV, UT, CA-south)
Ardemco Marine Specialties
778 West 17th Street
Costa Mesa, CA 92627
Tel: [phone]
800-253-0115
Fax: [phone]
E-mail: [email protected]
U.S.A. – Upper Midwest
(IA, MN, NE, ND, SD, WI)
PowerHouse Marine
518 Logan
La Crosse, WI 54603
Tel: [phone]
888-752-4539
Fax: [phone]
E-mail: [email protected]
U.S.A. – Northern California
Fox Marine
2250 Zanker Road, Unit D
San Jose, CA 95131
Tel: [phone]
800-826-2873
E-mail: [email protected]
CANADA
MASTER SANITATION
DISTRIBUTORS
Canada - East
Eastern Marine Systems, Inc.
12-A Leslie Street
Toronto, Ontario M4M 3H7
Tel: [phone]
888-764-1111
Fax: [phone]
E-mail: [e-mail]
Canada - West
Western Marine Company
1494 Powell Street
Vancouver, BC V5L 5B5
Tel: [phone]
800-663-0600
Fax: [phone]
800-663-6790
E-mail: [email protected]
INTERNATIONAL
SEALAND SANITATION SYSTEM
DISTRIBUTORS
Call 1-800-321-9886, email us
at [email protected], or
visit www.dometicusa.com for the
distributor nearest you.

20
Dometic Corporation warrants, to the original purchaser only, that this Concerto® gravity discharge toilet, if used for
personal, family or household-like purposes, is free from defects in material and workmanship for a period of three
(3) years from the date of purchase.
Dometic also warrants, to the original purchaser only, that the vitreous china toilet bowl will not discolor, stain, scratch
or craze for a period of ten (10) years if used for personal, family or household-like purposes, and is regularly cleaned
as described in the product’s owner’s manual.
If this Dometic product is placed in commercial or business use, it will be warranted, to the original purchaser only,
to be free of defects in material and workmanship for a period of ninety (90) days from the date of purchase.
Dometic reserves the right to replace or repair any part of this product that proves, upon inspection by Dometic, to
be defective in material or workmanship. All labor and transportation costs or charges incidental to warranty service
are to be borne by the purchaser-user.
EXCLUSIONS
IN NO EVENT SHALL DOMETIC BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES, FOR DAMAGES
RESULTING FROM IMPROPER INSTALLATION, OR FOR DAMAGES CAUSED BY NEGLECT, ABUSE, ALTERA-
TION, OR USE OF UNAUTHORIZED COMPONENTS. THIS INCLUDES FAILURES WHICH MAY RESULT FROM NOT
FOLLOWING THE WINTERIZATION OR CLEANING PROCEDURES AS DESCRIBED IN THIS MANUAL. ALL
IMPLIED WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY
PARTICULAR PURPOSE, ARE LIMITED TO A PERIOD OF ONE (1) YEAR FROM DATE OF PURCHASE.
IMPLIED WARRANTIES
No person is authorized to change, add to, or create any warranty or obligation other than that set forth herein.
Implied warranties, including those of merchantability and fitness for a particular purpose, are limited to one (1) year
from the date of purchase for products used for personal, family or household-like purposes, and ninety (90) days
from the date of purchase for products placed in commercial or business use.
OTHER RIGHTS
Some states do not allow limitations on the duration of an implied warranty, and some states do not allow exclusions
or limitations regarding incidental or consequential damages; so, the above limitations may not apply to you. This
warranty gives you specific legal rights, and you may have other rights which vary from state to state.
To obtain warranty service, first contact your local dealer from whom you purchased this product.
MANUFACTURER’S THREE-YEAR AND TEN-YEAR LIMITED WARRANTIES
® Registered; ™ Trademark of Dometic Corporation
® Bar Keepers Friend is a registered trademark of SerVaas Laboratories.
© Dometic Corporation
Dometic Corporation • Sanitation Systems
13128 State Rt 226, PO Box 38
Big Prairie, OH 44611
SeaLand Product Customer Service: 1-800-321-9886
(8:00 a.m. - 5:00 p.m. ET)
600344954 10/04