Dometic RushFlush 9000 Series User manual

SANITATION
TOILETS
9300/9400/9500
EN 9000 Series
Operation Manual

2
EN
Toilets
NORTH AMERICAN ADDRESS INFORMATION
U.S.A. & CANADA
Service Office
Dometic Corporation
13128 St. Rte. 226
Big Prairie, OH 44611
Service Center & Dealer
Locations
Refer to “7 Customer Service” on
page 10.
Form No. 600347474 06/18 | ©2018 Dometic Corporation
Read these instructions carefully. These instructions MUST stay with this product.
CONTENTS
1 Explanation of symbols and safety instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Intended use ............................................................ 4
3 Operation............................................................... 5
4 Maintenance ............................................................ 7
5 Troubleshooting.......................................................... 9
6 Disposal ................................................................11
7 Customer Service.........................................................12
8 Limited warranty..........................................................12

3EN
Toilets
1 EXPLANATION OF SYMBOLS AND SAFETY INSTRUCTIONS
This manual has safety information and instructions to help you eliminate or reduce the risk of
accidents and injuries.
1.1 Recognize safety information
This is the safety alert symbol. It is used to alert you to potential physical injury hazards.
Obey all safety messages that follow this symbol to avoid possible injury or death.
1.2 Understand signal words
A signal word will identify safety messages and property damage messages, and will indicate the
degree or level of hazard seriousness.
indicates a hazardous situation that, if not avoided, could result in death or
serious injury.
indicates a hazardous situation that, if not avoided, could result in minor or
moderate injury.
is used to address practices not related to physical injury.
Iindicates additional information that is not related to physical injury.
1.3 Supplemental directives
Read and follow all safety information and instructions to avoid possible injury or death.
Read and understand these instructions before use and maintenance of this product.
Incorrect operation and maintenance of this product can lead to serious injury.
The installation must comply with all applicable local or national codes, including the
latest edition of the following standards:
U.S.A.
• ANSI/NFPA70, National Electrical Code (NEC)
• ABYC guidelines for marine installations
1.4 General safety messages
Failure to obey the following warnings could result in property damage, serious
injury, or death:
• This product must be installed and serviced by a qualified service technician.
• Do not modify this product in any way. Modification can be extremely hazardous.
• FLOOD HAZARD:
– Before beginning work on this product, be sure that all electrical power to the unit has
been turned off and that seacocks are in the closed or off position.
– For toilets connected to any through-the-hull fittings: always close seacocks when the
toilet is not in use (even if boat is unattended for a brief period).
– Instruct all passengers on how to close valves when the toilet is not in use.
– For toilets using fresh water for flushing, disconnect any shoreside water connections
when the boat is unattended for any length of time.

4
EN
Toilets
RISK OF PROPERTY DAMAGE: Failure to obey the following notices may cause
damage to the toilet or toilet system.
• Only flush water, bodily wastes, and rapid-dissolving toilet tissue.
• Do not overfill the holding tank, or serious damage can occur to the sanitation system.
Overfilling the holding tank can rupture the holding tank or release tank contents into the
bilge.
• This toilet system is not intended for raw water flush toilet systems and is not designed to flush
with seawater. Only use a fresh water supply.
2 INTENDED USE
The 9000 Series RushFlush toilets are designed and intended for use inside the boat for which it is
supplied. RushFlush toilets are not intended for use with a raw water or seawater flush system. Use
the instructions to ensure correct operation of the toilet. Dometic accepts no liability for damage
in the following cases:
• Faulty assembly or connection.
• Damage to the product resulting from mechanical influences and excess voltage.
• Alterations to the product without expressed permission from the Dometic Corporation.
• Use for purposes other than those described in the operating manual.
Dometic Corporation reserves the right to modify appearances and specifications without notice.

5EN
Toilets
3 OPERATION
3.1 Using the flush touchpad or flush switches
1Dometic Flush Touchpad (DFT)
Toilet
System Status
Tank
2Dometic System Status Panel (DSS)
OK TO
FLUSH
DO NOT
FLUSH
3Dometic Flush Switch (DFS) 4Dometic Flush Touch Panel (DFSHW)
➤Press and hold the Add Water switch to fill the bowl to the desired water level.
➤Press the Flush switch, then release it to flush the toilet.
3.2 Using the flush handle (9300 models only)
5
Flush Handle
➤Li the flush handle to fill the bowl to the
desired water level.
6
Flush Handle
➤Press the flush handle down, then release
it to flush the toilet.

6
EN
Toilets
3.3 Understanding the indicator lights for the 9000 series
Indicator Light Status
Power on Green Electrical power to the toilet is
activated
Tank level Amber The holding tank is 75% full
Red The holding tank is 100% full*
*Flush actuation is disabled to prevent overfilling of the holding tank.
3.4 Using the automatic “full tank” shut-down function
When connected to a holding tank level indication system, the RushFlush toilet system control
module disables flush functionality when the holding tank level reaches the “full” mark.
➤Empty the holding tank to restore flush functionality.
3.5 Adjusting the water consumption settings
To optimize toilet performance and operation, adjust the water control module to set the rate of
water flow for the upper rim and lower bowl jet. This adjustment should occur during installation.
Refer to the 9000 Series Installation Manual for more detail.
3.6 Initializing the toilet system
➤Turn on the water supply and electrical power to the toilet.
➤Press the Flush handle or switch once.
➤Toss several sheets of toilet tissue into the bowl and flush the toilet again.
IIf the toilet does not function as expected, refer to “5 Troubleshooting” on page 9
for possible solutions.

7EN
Toilets
4 MAINTENANCE
FLOOD HAZARD: Before beginning work on this product, be sure that all
electrical power to the unit has been turned off and that seacocks are in the CLOSED or OFF
position. Failure to obey this warning could result in property damage, serious injury, or death.
RISK OF PROPERTY DAMAGE: Do not use abrasive cleaners, caustic chemicals,
or lubricants and cleaners that contain alcohols or petroleum distillates. These substances may
cause damage to the toilet’s internal seals.
4.1 Cleaning the toilet
➤Use non-abrasive cleaners. Follow the directions on the cleaner manufacturer’s label for
details on using the cleaner.
4.2 Setting an inspection schedule
Inspection schedule Inspection task
Monthly Inspect the toilet, plumbing, plumbing connections, wiring,
and wiring connections.
Open and close all of the plumbing valves, including the
seacocks.
Check the inline water filters and the vented loops for
blockages.
Yearly Check the water valve filter.
4.3 Preparing the toilet for an extended period of non-use
➤Flush the toilet.
➤Add four ounces (120 ml) of liquid biodegradable laundry detergent. The laundry detergent
should not contain bleach or other environmentally harmful substances.
➤Flush the toilet five times to clear the bowl.
➤Turn off the water supply to the toilet.
➤Turn off the power to the toilet.
➤Pump out the holding tank completely.
➤If the system will be subjected to freezing temperatures, proceed to “4.4 Winterizing the
toilet” on page 8.
IIf the boat or RV will not be used for an extended period of time, or in the event of a long
electrical power interruption, electrical power and water supply to the toilet should be
shut off.

8
EN
Toilets
4.4 Winterizing the toilet
RISK OF POISONING: Do not use an automotive-type antifreeze in fresh-water
systems. Use a non-toxic antifreeze designed for potable water systems. Failure to comply could
result in property damage, serious injury, or death.
IThe amount of antifreeze needed may vary, depending on the installation.
For pressurized fresh water systems
➤Flush the system thoroughly with fresh water.
➤Drain the potable water tank.
➤Empty the holding tank.
➤Add freshwater antifreeze to the potable water tank.
➤Flush the potable-water and antifreeze mixture through the toilet and into the entire plumbing
system. Each installation is different, so amounts may vary. User discretion is required to
ensure adequate protection.
➤Turn off the power to the toilet.
➤Empty the holding tank of any remaining contents.

9EN
Toilets
5 TROUBLESHOOTING
Fault Possible cause Suggested remedy
The flush function
works, but the water
in the bowl empties
slowly or not at all.
The discharge pipe is pinched
or kinked.
Check discharge piping.
Discharge piping is not sloped
correctly.
Reroute the discharge pipe.
Minimum downward slope from
toilet to waste tank is 1/8" (3 mm)
per foot.
Discharge piping is blocked Close the seacocks and clear the
blockage.
Check valve in the discharge line
is blocked.
Clear blockage or replace check
valve.
Water system pressure is too low. Clear blockage at water valve
inlet or adjust water system
pressure switch.
Holding tank is not venting
properly.
Check vent line for blockage and
repair.
The water flow to the rim or lower
water jets is too low.
Increase the flow of the water jets
at the water flow control module.
Flush cycle does not
start aer pressing flush
handle or switch.
Holding tank is full and electrical
power to toilet is shut off (when
installed with full-tank shutdown
option).
Empty the waste holding tank.
Electrical power to toilet is
disrupted.
Check wiring, circuit breakers.
Flush switch is malfunctioning. Replace flush switch.
Water flow control module is
malfunctioning.
Replace control module.
Toilet flushes
continuously, or bowl
fills with water when
not in flush cycle.
Jet valve diaphragm or pilot hole
is clogged with debris.
Inspect/clean water system
strainers. Disassemble water
valve(s) and clean diaphragm or
pilot hole.
Water flow control module is
malfunctioning.
Replace control module.

10
EN
Toilets
Fault Possible cause Suggested remedy
Insufficient or no water
enters the toilet bowl
(upper rim and/or
lower bowl jets).
Water supply line (to upper rim
or lower bowl jets) is pinched or
kinked.
Check water supply lines.
Screen in water valve(s) is
blocked.
Clear blockage.
Intake water filters are blocked. Clear water filters.
Maintenance valve in lower bowl
water supply line is closed.
Open maintenance valve.
Water system is not pressurized. Check for closed valves or leaks.
Water valve (to upper
rim or lower bowl jets) is
malfunctioning.
Inspect/clean water system
strainers. Disassemble water
valve(s) and clean diaphragm or
pilot hole.
Debris is lodged in water jet. Clear blockage.
Water flow control module is
malfunctioning.
Replace control module.
Water pump cycles very
frequently. (Problem
is in pressurized water
system.)
Leak in water system. Find leak and repair.
Pressure switch not adjusted
correctly.
Adjust setting to 30-50 PSI.
Water pump inlet check valve is
clogged or stuck open.
Clean and/or replace check
valve.
Water pressure tank air pressure
is too high.
Adjust air pressure 3-5 PSI below
pump activation pressure.
Water pressure tank bladder is
ruptured.
Replace water pressure tank.