Dimplex DWOP20R User manual

Service Manual
Model Number:
DWOP20R
UL Part Number
6909030100
7400760100R00
In keeping with our policy of continuous product development, we reserve the right to make changes without notice.
© 2013 Dimplex North America Limited
Dimplex North America Limited
1367 Industrial Road Cambridge ON Canada N1R 7G8
1-888-346-7539 www.dimplex.com
REV PCN DATE
00 - 1-NOV-13
IMPORTANT SAFETY INFORMATION: Always read this manual rst before attempting to service this replace. For your
safety, always comply with all warnings and safety instructions contained in this manual to prevent personal injury or prop-
erty damage.

2 www.dimplex.com
Always use a qualied technician or service agency to repair this replace.
!NOTE: Procedures and techniques that are considered important enough to emphasize.
CAUTION: Procedures and techniques which, if not carefully followed, will result in damage to the equipment.
WARNING: Procedures and techniques which, if not carefully followed, will expose the user to the risk of re, serious
injury, or death.
OPERATION .........................................................3
MAINTENANCE ......................................................4
EXPLODED PARTS DIAGRAM ..........................................5
REPLACEMENT PARTS ...............................................5
WIRING DIAGRAM ...................................................6
HEATER ASSEMBLY REPLACEMENT ....................................7
COMPONENT ACCESS ................................................7
ON/OFF SWITCH REPLACEMENT .......................................7
3 POSITION SWITCH REPLACEMENT....................................8
THERMOSTAT REPLACEMENT .........................................8
POTENTIOMETER REPLACEMENT ......................................8
REMOTE RECEIVER REPLACEMENT ....................................8
POWER BOARD REPLACEMENT .......................................9
TRANSFORMER REPLACEMENT .......................................9
IR SENSOR REPLACEMENT ...........................................9
POWER CORD REPLACEMENT.........................................9
FAN ASSEMBLY REPLACEMENT - MOTOR AND HOUSING .................10
LIGHT ASSEMBLY REPLACEMENT.....................................10
TROUBLESHOOTING GUIDE ..........................................11
TABLE OF CONTENTS

3
2kw
Resetting the Temperature Cutoff Switch
Should the heater overheat, an automatic cut out will turn
the replace off and it will not come back on without being
reset. It can be reset by switching the On/ Off Switch to Off
and waiting ten (10) minutes before switching the unit back
on.
CAUTION: If you need to continuously reset the heater,
unplug the unit and call Dimplex North America Limited at
1-888-346-7539 for technical support. Please have your
model and serial number ready when calling.
Remote Control
The On/Off Switch must be in the ‘ON’ ( I ) position in order
for the remote control to operate. There are 3 buttons on
the remote control. (Figure 2)
!NOTE: To operate correctly the remote control must be
pointed towards the heater outlet.
The remote control functions are as follows:
Press once to turn on Flame effect only. This will be
indicated by one beep.
Press once to turn on Full heat and Flame effect. This
will be indicated by two beeps.
Standby - This will be indicated by one beep.
!NOTE: Once the mist has been activated, the unit will
have to be turned Off, using either the momentary button,
on the unit, or the Off button on the remote control, then
back on to return to Level 1 - Logs and Light only operation.
Battery Replacement
To replace the battery:
1. Slide battery cover open on the remote control (Figure
10).
2. Install two 1.5 Volt (AAA) battery in the battery holder.
3. Close the battery cover.
Battery must be recycled or disposed of properly.
Check with your Local Authority or Retailer for recy-
cling advice in your area.
OPERATION
!NOTE: When the engine is used in an environment
where background noise is very low, it may be possible to
hear a sound which is related to the operation of the ame
effect. This is normal and should not be a cause for con-
cern.
!NOTE: Always ensure that the appliance is xed to the
wall in a level position.
The manual controls for the wall mount engine are located
on the bottom of the unit. (Figure 1)
A. On/Off Switch
Supplies power to the engine.
B. Thermostat Control
To adjust the temperature to your individual requirements,
turn the thermostat control backwards all the way to turn on
the heater. When the room reaches the desired tempera-
ture, turn the thermostat knob forward until you hear a click.
Leave thermostat in this position to maintain the room tem-
perature at this setting. For additional heat, turn clockwise
until you hear the click again and the heater will turn on.
C. Mode Selector Switch
Press once to turn on the ame effect. This will be indicated
by an audible “beep”. Although the lights turn on immedi-
ately it will take 30 seconds before the ame effect starts.
• Press again to give ame effect and full heat. This will
be indicated by two “beeps”.
• Press again to return to ame effect only. This will be
indicated by one “beep”.
• Press to put re in to standby mode. This will be
indicated by one “beep”.
D. Flame Intensity Control
Adjusts the intensity of the ame and smoke effect when the
heater has been activated.
Turning the control knob towards you decreases the inten-
sity of the ame and smoke effect. Turning the control knob
away from you will increase the ame and smoke effect.
!NOTE: Give the ame generator some time to react to
changes you may make on the ame control knob.
!NOTE: When the water tank is empty the unit will turn
off after 30 seconds. See instructions under Maintenance
Section for relling tank. When this procedure is complete,
the main lamps will illuminate but it will take 30 seconds
before the ames return.
Figure 2
Figure 1
A
BC
D
Battery Cover
Standby
Button
Flame
Button
Heat
Button

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MAINTENANCE
WARNING: Disconnect power before attempting any
maintenance or cleaning to reduce the risk of re, elec-
tric shock or damage to persons.
Filling the water tank
When the water tank is empty, the ame effect shuts off
and you will hear 2 audible beeps, follow these steps.
CAUTION: Allow at least ve minutes for components to
cool before disassembling the unit to rell.
1. Turn the On/Off switch to the off position (0) (Figure 1)
2. Gently remove the rock media and the media tray and
place them carefully on the ground.
3. Remove the rell container by lifting upwards and
outwards.
4. Rell the container with tap water.
!NOTE: Normal tap water can be used in the Optimyst®
as long as the tap water is not considered to be hard water.
In the event your tap water is hard, you may use softened
water or distilled water with 1/8 tsp of salt (0.5 mL) added to
the water reservoir. (The addition of additional salt should
only be when you notice that the unit is not producing mist
as expected.)
5. Screw the cap back on, do not overtighten.
6. Return the rell container to the sump, with the tank
cap facing down and the at side of the tank facing
outward.
7. Gently place the media tray and rock media back into
position.
8. Turn the On/Off switch to the off position (I). (Figure 1)
If you do not intend on using the unit for longer than 2
weeks, empty and drain the unit of water, and dry all of the
water containing components.
Replacing the Light bulbs
If a large amount of the smoke appears grey or colourless it
may be that one or more of the light bulbs have burnt out.
CAUTION: Allow at least twenty minutes for light bulbs
to cool before touching bulbs to avoid accidental burning of
skin.
1. Leaving the ame effect on, remove the rock media,
tray and water tank and lift out the top cover (Figure 3).
2. View the lamps from a distance in front of the re and
observe which lamp needs to be changed.
3. Turn the unit off, and unplug the engine.
4. Leave the appliance for 20 minutes to allow the lamps
to cool down before removing them.
5. Remove the water tank and sump (Figure 4) by lifting
upwards and placing to the side.
6. Remove the defective bulb, by gently lifting vertically
and disengaging the pins from the lamp holder.
!NOTE: Replacement light bulbs can be obtained by
contacting Dimplex Customer Service at 1-888-346-7539.
7. Carefully insert the two pins of the new bulb into the
two holes in the lamp holder. Push lamp rmly in place.
8. Replace the top cover, rell container, media tray and
media.
Cleaning
It is recommended that all of the components that contain
water are cleaned with soap and water on a biweekly ba-
sis. A small brush has been included to assist in cleaning
difcult items/areas, i.e. the transducer.
CAUTION: Do not put plastic components in the dish-
washer.
Filter Cleaning
The air lter can be removed and gently rinsed with water
to clean and dried on a towel before reinstalling.
!NOTE: Replace the lter so that the course black lter is
facing the front of the engine.
Surface Cleaning
Use a warm damp cloth only to clean surfaces of the en-
gine. Do not use abrasive cleaners.
!NOTE: If you need to move the unit ensure that all of
the components that contain water have been emptied be-
fore relocating.
Sump
Filter
Figure 3
Top
Cover
Figure 4

5
EXPLODED PARTS DIAGRAM
62
3
4
5
910
7
12
1
REPLACEMENT PARTS
1. Remote Control...................9600385600RP
2. Remote Control Receiver ...........9600580300RP
3. Rock Media . . . . . . . . . . . . . . . . . . . . . .9600650100RP
4. Media Tray ......................9600660100RP
5. Heating Assembly (with cutout).......9600680100RP
6. Light Holder Assembly .............9600610100RP
7. Removable Rell Container with Cap 0441440100RP
8. Cap for Rell Container. . . . . . . . . . . . .0441440300RP
9. Top Cover Assembly ...............9600670100RP
10. Water Reservoir (Sump) ...........0441380100RP
11. Fan Assembly . . . . . . . . . . . . . . . . . . . .5300300100RP
12. Fan Housing Assembly . . . . . . . . . . . . .9600540100RP
13. Fan Filter. . . . . . . . . . . . . . . . . . . . . . . .8600300100RP
14. Transducer ......................3800040100RP
15. Power Cord
Mod 0-A ........................9600385500RP
Mod B . . . . . . . . . . . . . . . . . . . . . . . . . .9600740100RP
16. On/Off Switch ....................9600383500RP
17. 3-Position Switch .................9600383600RP
18. Transformers. . . . . . . . . . . . . . . . . . . . .9600690100RP
19. Mounting Hardware Kit . . . . . . . . . . . . .9600700100RP
20. Potentiometer ....................9600640100RP
21. Thermostat Assembly . . . . . . . . . . . . . .9600620100RP
22. Control Knob . . . . . . . . . . . . . . . . . . . . .9600630100RP
23. Power Board . . . . . . . . . . . . . . . . . . . . .9600590100RP
24. IR Receiver with Lens . . . . . . . . . . . . . .9600600100RP
25. Light Bulbs ............................ RB400
13
11
14
23
20
17
16
21
18
22
15
24
25

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WIRING DIAGRAM

7
HEATER ASSEMBLY REPLACEMENT
Tools Required: Philips head screwdriver
Flat head screwdriver
WARNING: If the replace was operating prior to ser-
vicing, allow at least 10 minutes for light bulbs and heating
elements to cool off to avoid accidental burning of skin.
WARNING: Disconnect power before attempting any
maintenance to reduce the risk of electric shock or damage
to persons.
1. Carefully remove the rocks from the front tray.
2. Remove the replace assembly from the wall by care-
fully lifting it upward, releasing it from the anges of the
wall-mounting bracket.
3. Carefully set the unit upright on a at working surface.
!NOTE: If necessary, lay a protective barrier between
the unit and your work surface, (i.e. cloth, cardboard, thick
plastic) to avoid scratching your work surface.
4. Remove the three screws along the back edge of the
top of the unit and the two screws along the top of the
side edge. (Figure 5)
5. Gently remove the top panel, laying it on the work sur-
face so that all of the components can easily be seen.
6. Remove the 4 screws that secure the heater assembly
to the back panel. (Figure 6)
7. Disconnect the wiring connections noting their original
locations.
!NOTE: A at head screwdriver can be used to gently
pry between the end of the connector and the switch to
release the wires.
8. Transfer the mounting brackets from the old heater as-
sembly to the new heater assembly.
9. Properly orient and install the new assembly and con-
nect all of the wiring.
10. Reassemble in the reverse order as above.
Figure 5
COMPONENT ACCESS
Tools Required: Phillips Head Screwdriver
WARNING: If the replace was operating prior to ser-
vicing, allow at least 10 minutes for light bulbs and heating
elements to cool off to avoid accidental burning of skin.
WARNING: Disconnect power before attempting any
maintenance to reduce the risk of electric shock or damage
to persons.
1. Carefully remove the rocks from the front tray.
2. Remove the replace assembly from the wall by care-
fully lifting it upward, releasing it from the anges of the
wall-mounting bracket.
3. Carefully set the unit upright on a at working surface.
!NOTE: If necessary, lay a protective barrier between
the unit and your work surface, (i.e. cloth, cardboard, thick
plastic) to avoid scratching your work surface.
4. Remove the three screws along the back edge of the
top of the unit and the two screws along the top of the
side edge.
5. Remove the remaining 4 along the front side edge of
the unit on both sides and the three along either side of
the middle back of the unit. (Figure 7)
6. Lay the unit carefully down on the back surface.
7. From this point the entire front (sides and top) can be
lifted off of the back exposing all of the inner compo-
nents.
ON/OFF SWITCH REPLACEMENT
Tools Required: Philips head screwdriver
Flat head screwdriver
WARNING: If the replace was operating prior to ser-
vicing, allow at least 10 minutes for light bulbs and heating
elements to cool off to avoid accidental burning of skin.
WARNING: Disconnect power before attempting any
maintenance to reduce the risk of electric shock or damage
to persons.
Figure 6
Top Panel

8 www.dimplex.com
1. Follow “Component Access” instructions before pro-
ceeding.
2. Locate the On/Off switch and disconnect the wiring
connections noting their original locations. (Figure 8)
!NOTE: A at head screwdriver can be used to gently
pry between the end of the connector and the switch to
release the wires.
3. Depress the retainer clips on the rear of the switch and
push the switch out through the opening.
4. Properly orient and insert the new switch and connect
all of the wiring.
5. Reassemble in the reverse order as above.
3 POSITION SWITCH REPLACEMENT
Tools Required: Philips head screwdriver
Flat head screwdriver
WARNING: If the replace was operating prior to ser-
vicing, allow at least 10 minutes for light bulbs and heating
elements to cool off to avoid accidental burning of skin.
WARNING: Disconnect power before attempting any
maintenance to reduce the risk of electric shock or damage
to persons.
1. Follow “Component Access” instructions before pro-
ceeding.
2. Locate the 3 Position switch and disconnect the wiring
connections noting their original locations. (Figure 8)
!NOTE: A at head screwdriver can be used to gently
pry between the end of the connector and the switch to
release the wires.
3. Depress the retainer clips on the rear of the switch and
push the switch out through the opening.
4. Properly orient and insert the new switch and connect
all of the wiring.
5. Reassemble in the reverse order as above.
THERMOSTAT REPLACEMENT
Tools Required: Philips head screwdriver
Flat head screwdriver
WARNING: If the replace was operating prior to ser-
vicing, allow at least 10 minutes for light bulbs and heating
elements to cool off to avoid accidental burning of skin.
WARNING: Disconnect power before attempting any
maintenance to reduce the risk of electric shock or damage
to persons.
1. Follow “Component Access” instructions before pro-
ceeding.
2. Locate the thermostat and disconnect the wiring con-
nections noting their original locations. (Figure 8)
!NOTE: A at head screwdriver can be used to gently
pry between the end of the connector and the board to
release the wires.
3. Remove the screws securing the thermostat to the
chassis and gently lift the thermostat off.
4. Properly orient and install the new thermostat and con-
nect all of the wiring.
5. Reassemble in the reverse order as above.
POTENTIOMETER REPLACEMENT
Tools Required: Philips head screwdriver
Flat head screwdriver
WARNING: If the replace was operating prior to ser-
vicing, allow at least 10 minutes for light bulbs and heating
elements to cool off to avoid accidental burning of skin.
WARNING: Disconnect power before attempting any
maintenance to reduce the risk of electric shock or damage
to persons.
1. Follow “Component Access” instructions before pro-
ceeding.
2. Locate the potentiometer and disconnect the wiring
connections noting their original locations. (Figure 8)
!NOTE: A at head screwdriver can be used to gently
pry between the end of the connector and the board to
release the wires.
3. Remove the screws securing the potentiometer to the
chassis and gently lift the potentiometer off.
4. Replace the control knob, if required.
5. Properly orient and install the new potentiometer and
connect all of the wiring.
6. Reassemble in the reverse order as above.
REMOTE RECEIVER REPLACEMENT
Tools Required: Philips head screwdriver
Flat head screwdriver
WARNING: If the replace was operating prior to ser-
vicing, allow at least 10 minutes for light bulbs and heating
Figure 7

9
elements to cool off to avoid accidental burning of skin.
WARNING: Disconnect power before attempting any
maintenance to reduce the risk of electric shock or damage
to persons.
1. Follow “Component Access” instructions before pro-
ceeding.
2. Locate the remote control receiver and disconnect
the wiring connections noting their original locations.
(Figure 8)
!NOTE: A at head screwdriver can be used to gently
pry between the end of the connector and the board to
release the wires.
3. Remove the screws securing the remote receiver to the
chassis and gently lift the receiver off.
4. Properly orient and install the new remote control re-
ceiver and connect all of the wiring.
5. Reassemble in the reverse order as above.
POWER BOARD REPLACEMENT
Tools Required: Philips head screwdriver
Flat head screwdriver
WARNING: If the replace was operating prior to ser-
vicing, allow at least 10 minutes for light bulbs and heating
elements to cool off to avoid accidental burning of skin.
WARNING: Disconnect power before attempting any
maintenance to reduce the risk of electric shock or damage
to persons.
1. Follow “Component Access” instructions before pro-
ceeding.
2. Locate the power board and disconnect the wiring con-
nections noting their original locations. (Figure 8)
!NOTE: A at head screwdriver can be used to gently
pry between the end of the connector and the board to
release the wires.
3. Remove the screws securing the power board to the
chassis and gently lift the board off.
4. Properly orient and install the new power board and
connect all of the wiring.
5. Reassemble in the reverse order as above.
TRANSFORMER REPLACEMENT
Tools Required: Philips head screwdriver
Flat head screwdriver
WARNING: If the replace was operating prior to ser-
vicing, allow at least 10 minutes for light bulbs and heating
elements to cool off to avoid accidental burning of skin.
WARNING: Disconnect power before attempting any
maintenance to reduce the risk of electric shock or damage
to persons.
1. Follow “Component Access” instructions before pro-
ceeding.
2. Locate the transformer and disconnect the wiring con-
nections noting their original locations. (Figure 8)
!NOTE: A at head screwdriver can be used to gently
pry between the end of the connector and the board to
release the wires.
3. Remove the screws securing the transformer to the
chassis and gently lift the board off.
4. Properly orient and install the new transformer and
connect all of the wiring.
5. Reassemble in the reverse order as above.
IR SENSOR REPLACEMENT
Tools Required: Philips head screwdriver
Flat head screwdriver
WARNING: If the replace was operating prior to ser-
vicing, allow at least 10 minutes for light bulbs and heating
elements to cool off to avoid accidental burning of skin.
WARNING: Disconnect power before attempting any
maintenance to reduce the risk of electric shock or damage
to persons.
1. Follow “Component Access” instructions before pro-
ceeding.
2. Locate the IR sensor and disconnect the wiring con-
nection noting their original locations. (Figure 8)
3. Properly orient and install the new IR sensor and con-
nect the wiring.
4. Reassemble in the reverse order as above.
POWER CORD REPLACEMENT
Tools Required: Philips head screwdriver
Flat head screwdriver
Needle nose pliers
WARNING: If the replace was operating prior to ser-
vicing, allow at least 10 minutes for light bulbs and heating
elements to cool off to avoid accidental burning of skin.
WARNING: Disconnect power before attempting any
maintenance to reduce the risk of electric shock or damage
Figure 8
Transformer
Heater Assembly
IR
Sensor
Remote
Receiver
Power
Board
On/Off
Switch 3 Position Switch
Thermostat
Potentiometer

10 www.dimplex.com
to persons.
1. Follow “Component Access” instructions before pro-
ceeding.
2. Locate the power cord and disconnect the wiring con-
nections noting their original locations.
!NOTE: A at head screwdriver can be used to gently
pry between the end of the connector and the switch to
release the wires.
3. With needle nose pliers, grasp the power cord strain
relief grommet from inside the back of the bottom panel
and push while twisting to remove.
4. Install the new power cord.
5. Reassemble in the reverse order as above.
FAN ASSEMBLY REPLACEMENT -
MOTOR AND HOUSING
Tools Required: Philips head screwdriver
Flat Head Screwdriver
WARNING: Disconnect power before attempting any
maintenance to reduce the risk of electric shock or damage
to persons.
!NOTE: Ensure that all of the components that
contain water have been emptied before performing any
maintenance.
1. Carefully remove the rocks from the front tray.
2. Remove the replace assembly from the wall by care-
fully lifting it upward, releasing it from the anges of the
wall-mounting bracket.
3. Carefully set the unit upright on a at working surface.
!NOTE: If necessary, lay a protective barrier between
the unit and your work surface, (i.e. cloth, cardboard, thick
plastic) to avoid scratching your work surface.
4. Disassemble the sump components. (Figure 9)
5. Remove the 3 screws that hold the cover onto the fan
housing.
6. Remove the fan motor out of the housing and discon-
nect the wiring connection located near the bottom of
the housing.
7. If replacing only the motor, attach new motor and reas-
semble the remainder of the cassette in reverse order
from the instructions above.
• If replacing the housing, remove the 3 screws attaching
the base to the cassette. (Figure 6)
8. Attach new fan housing base to the cassette.
9. Transfer the lter from the old housing to the new hous-
ing.
10. Reinstall the fan motor and reconnect the wire.
11. Re-assemble the remainder of the cassette in reverse
order from the instructions above.
LIGHT ASSEMBLY REPLACEMENT
Tools Required: Phillips Head Screwdriver
WARNING: If the replace was operating prior to ser-
vicing, allow at least 10 minutes for light bulbs and heating
elements to cool off to avoid accidental burning of skin.
WARNING: Disconnect power before attempting any
maintenance to reduce the risk of electric shock or damage
to persons.
1. Carefully remove the rocks from the front tray.
2. Remove the replace assembly from the wall by care-
fully lifting it upward, releasing it from the anges of the
wall-mounting bracket.
3. Carefully set the unit upright on a at working surface.
!NOTE: If necessary, lay a protective barrier between
the unit and your work surface, (i.e. cloth, cardboard, thick
plastic) to avoid scratching your work surface.
4. Disassemble the sump components. (Figure 9)
5. Lay the unit carefully down on the back surface.
6. Remove the light bulbs and place in a safe location.
7. Remove the two screws securing the light assembly
and housing bracket to the bottom panel.
8. Lift the assembly out and disconnect the wiring connec-
tions noting their original locations.
9. Remove the light assembly from the housing bracket.
10. Properly orient and install the new light assembly and
connect all of the wiring.
11. Reassemble in the reverse order as above.
Figure 9

11
TROUBLESHOOTING GUIDE
PROBLEM CAUSE SOLUTION
General
Circuit breaker trips or fuse
blows when unit is turned on
Short in unit wiring. Trace wiring in unit.
Improper circuit current rating Additional appliances may exceed the current rating
of the circuit breaker or fuse. Plug unit into another
outlet or install unit on a dedicated 15 amp circuit.
Lights dim in room while the unit
is on
Unit is drawing close to circuit current
rating
Move the unit to another outlet or install unit on a dedi-
cated 15 amp circuit
Power cord gets warm Normal Operation The power cord may get slightly warm to the touch
when the heater is on
Defective power cord Replace power cord if cord gets hot to the touch.
Unpleasant smell when unit is
used.
Dirty or stale water. Clean the unit as described under maintenance.
Appearance
Fireplace does not turn on
Manually
Improper operation Refer to Operation Section
No incoming voltage from the electrical
wall socket
Check Fuse/Breaker Panel
Defective 3 Position Switch Replace 3 Position switch
Fireplace does not turn on with
the Remote Control
Improper operation Refer to Operation Section
The batteries in the remote control are
dead.
Install new battery into the remote control
Defective remote control Replace Remote Control
Defective remote control receiver Replace remote control receive
Defective IR sensor Replace IR sensor
The ame effect will not start Switch A is in the ‘ON’ (I) position, but
mode Switch B has not been pressed.
(Figure 2)
Press Switch B once for ame effect. (Figure 2)
Low water level. Check the water tank is full and there is water in the
sump.
Water in unit is too cold Allow water to warm to room temperature.
If using distilled or reverse osmosis water,
unit will not produce a consistent mist
Add 1/8 tsp of table salt to water reservoir to intro-
duce electrolytes, only repeat when mist is not being
produced correctly
Check that the fan is operating correctly Replace fan assembly
Ensure that the air lter is clean and dry
Cord is located over emitter on transducer Relocate cord so that mist is free to rise off of trans-
ducer.
Defective Transducer Replace Transducer
The ame effect is too low. Flame effect control knob is set too low.
(Figure 2)
Increase level of ame by turning Control knob C to
the left slowly. (Figure 2)
The ame effect has too much
smoke.
Flame effect setting is too high. Turn the ame effect Control knob “C” to the right until
it is at minimum and slowly turn to the left, about ¼ a
turn, at a time. Give the ame generator some time to
adjust before increasing. (Figure 2)
Mist is not coming out and the
red light by the transducer is
not on
The cord from the power board is not
working
Ensure that the cord is not pinched.
Ensure that the cord is fully inserted into the connec-
tion on the power board.
Mist is coming out fast Filter is missing off of Fan Housing Replace Fan Filter
Mist does not appear to be com-
ing out evenly
Unit is not level Level unit
Media is blocking air ow Rearrange media
A light bulb is burnt out Replace light bulb

12 www.dimplex.com
PROBLEM CAUSE SOLUTION
Heater
Heater is not turning off Improper operation Refer to Operation Section
Defective 3 position switch Replace 3 position switch
Defective thermostat Replace thermostat
Heater is not turning on Improper operation Refer to Operation Section
Loose wiring Trace Wiring
Defective heater assembly Replace heater assembly
Defective 3 position switch Replace 3 position switch
Heater is turning off after a
couple of minutes of operation
Build up of dirt/dust in heater assembly Ensure that exterior intake louvers and rebox cavity
are free of dirt/dust.
Defective Heater Assembly Replace Heater Assembly
Heater emits an odor Normal Operation Normal operation is when the heater emits an odor
for a brief period after the heater is initially turned on.
The heater is burning off any dust accumulated during
manufacturing or operation.
Defective heater assembly Replace heater assembly
Heater fan turns on but heater
lacks heat
Improper operation Refer to Operation Section
Loose wiring Trace wiring in unit
Defective heater assembly Replace heater assembly
Heating element is glowing red Normal Operation Small glowing sections of the element are considered
normal.
Defective heater assembly If larger glowing sections are causing the heater to trip
the thermal cutout, unplug unit, discontinue use and
replace heater assembly.
Heater fan runs continuously Loose wiring Trace wiring in unit
Defective momentary switch Replace momentary switch
Defective heater assembly Replace heater assembly
Noise
Excessive noise with the heater
on
Dirty heater assembly Ensure that exterior intake louvers and rebox cavity
are free of dirt/dust.
Defective heater assembly Replace heater assembly