Service Manual
Model Number
DS7420
DS7425DLX
UL Part Number
6900470759
6900471604
IMPORTANT SAFETY INFORMATION: Always read this manual first before attempting to service
this stove. For your safety, always comply with all warnings and safety instructions contained in this
manual to prevent personal injury or property damage.
Dimplex North America Limited
REV PCN
DATE
1367 Industrial Road Cambridge ON Canada N1R 7G8
In keeping with our policy of continuous product development, we reserve the right to make changes without notice.
© 2011 Dimplex North America Limited
00
-
31-AUG-11
7400480000R00
Remote Control
OPERATION
To access the controls, go to the back of the stove (Figure
1).
The stove is supplied with an integrated On/Off remote
control.
! NOTE: Ensure that the stove’s Three Position Switch is
set to the remote Control setting (“II” position).
Figure 1
To operate, push the ON button to turn stove on, push the
OFF button to turn the stove off.
B
A
C
Remote Initialization
Follow these steps for remote control initialization and if
required, re-initialization:
1. Disconnect power to stove.
2. Set the Three Position On/Off Switch to the Remote
position (Figure 1A).
D
3. Wait a minimum of five (5) seconds and then re-acquire
power to stove.
4. Within 10 seconds of re-acquiring power, press the ON
button located on the remote control transmitter.
A. Three Position On/Off Switch
! NOTE: You will have only 10 seconds to perform this
last step. Failure to do so will result in these steps
needing to be followed again.
The switch has two On positions marked with “I” and “II”.
The “I” position is for manual operation. In this position the
built-in remote control is bypassed.
Battery Installation
The “II” position is for operating the unit with the provided
remote control. When in “II” position the unit is operated
with the ON and OFF buttons of the remote control.
To install or replace the battery:
1. Slide battery cover open on the hand held transmitter
(Figure 2).
When the switch is in the center position “O” the unit is off.
2. Correctly install one (1) 12 volt (A23) battery in the
B.
Light On/Off Switch
battery holder.
The Light On/Off Switch supplies power to the upper light of
the log bed display area.
3. Close the battery cover.
Battery must be recycled or disposed ofproperly.
Check with your Local Authority or Retailer for
recycling advice in your area.
C.
Heater On/Off Switch
The Heater On/Off Switch supplies power to the heater.
Figure 2
D. Heater Thermostat Control
To adjust the temperature to your individual requirements,
turn the thermostat control clockwise all the way to
turn on the heater. When the room reaches the desired
temperature, turn the thermostat knob counter clockwise
until you hear a click. Leave in this position to maintain the
room temperature at this setting. For additional heat, turn
clockwise until you hear the click again and the heater will
turn on.
On
Button
Off Button
Plastic
Strip
Battery
Cover
Resetting the Temperature Cutoff Switch
Should the heater overheat, an automatic cut out will turn
the heater off and it will not come back on without being
reset. It can be reset by switching the Three Position Switch
to Off “O” and waiting five (5) minutes before switching the
unit back on.
CAUTION: If you need to continuously reset the heater,
unplug the unit and call Customer Service at
1-888-346-7539.
3
REMOTE CONTROL
OPERATION - DS7420 MOD A - D
The remote control has a range of approximately 50ft.
(15.25m) it does not have to be pointed at the stove and
can pass through most obstacles (including walls). It is
supplied with one of 243 independent frequencies to pre-
vent interference with other units. The frequency designa-
tion is indicated on the back of the transmitter (Figure 4)
To access the controls, go to the back of the stove. (Figure
3)
A. MAIN POWER ON/OFF SWITCH
The main power on/off switch supplies power to all stove
functions (heater & flame).
B. TOP LIgHT ON/OFF SWITCH
REMOTE CONTROL INSTALLATION
Controls the light intensity of the log bed display area.
1. Plug stove cordset into the outlet located on the side of
the receiver. (Figure 4)
C. HEATER ON/OFF SWITCH
2. Plug receiver into the wall outlet.
The heater on off switch supplies power to the heater.
3. Install a 9 volt battery into the transmitter. (Figure 4)
D. HEATER THERMOSTAT CONTROL
! NOTE:
To adjust the temperature to your individual requirements,
turn the thermostat control clockwise all the way to turn
on the heater. When the room reaches the desired tem-
perature, turn the thermostat knob counter clockwise until
you hear a click. Leave in this position to maintain the
room temperature at this setting. For additional heat, turn
clockwise until you hear the click again and the heater will
turn on.
•
•
Stove MAIN on/off switch must be in the ON position
prior to using the Remote Control.
ON/OFF Remote Control may be used to control most
other electrical devices including T.v.’s, stereos and
lamps.
CAUTION:
•
•
For indoor use in dry areas only
RESETTINg THE TEMPERATURE CUTOFF SWITCH
For use on electrical devices with 15 amp resistive load
or 1/3 HP inductive load
Should the heater overheat, an automatic cut out will turn
the heater off and it will not come back on without be-
ing reset. It can be reset by switching the MAIN ON/OFF
SWITCH to OFF and waiting 5 minutes before switching
the unit back on.
•
120 volt AC only
Figure 4
Receiver
CAUTION: If you need to continuously reset the heater,
unplug the unit and call Dimplex North America Limited
at 1-800-668-6663.
Figure 3
A
B
C
D
OPEN
Frequency
Code
Battery
Cover
4
Lower Bulbs Requirement: Quantity of three (3) 35 Watt
Halogen Quartz lamps, 120 volt, G9 Base.
MAINTENANCE
ꢀWARNINg: Disconnect power before attempting any
maintenance or cleaning to reduce the risk of fire,
electric shock or damage to persons.
Do not exceed 35 Watts per bulb.
Lower Bulb Replacement
1. Remove the stove pipe kit (if equipped).
2. Gently place stove on its back on a flat surface.
Light Bulb Replacement
Allow at least five (5) minutes for light bulbs to cool off
before touching bulbs to avoid accidental burning of skin.
3. Remove the heater cover retaining screws located on
the bottom of the stove (Figure 6) and lower heater and
light assembly out onto the floor.
Light bulbs need to be replaced when you notice a dark
section of the flame or when the clarity and detail of the log
exterior disappears.
4. Remove the burnt out bulb(s) by pulling straight out
of socket. If bulbs are difficult to remove form socket
move the bulb from side to side while pulling being
careful not to damage the light socket.
There are three (3) bulbs under the Log Set Assembly,
which generate the flames and embers, and one (1) bulb
above that illuminate the log exterior.
5. Replace the lower light bulbs.
6. Reassemble in the reverse order as above.
Tool Requirements: Phillips screw driver
glass Cleaning
Helpful Hints: It is a good idea to replace all light bulbs
at one time if they are close to the end of their rated life.
Group replacement will reduce the number of times you
need to open the unit to replace light bulbs.
The clear door is cleaned in the factory during the
assembly operation. During shipment, installation, handling,
etc., the clear door may collect dust particles. These can be
removed by dusting lightly with a clean, dry cloth.
Upper Bulb Requirement: Quantity of one (1) 7 Watt
candelabra E12 small base 120 volt.
To remove fingerprints or other marks, the clear doors
can be cleaned with a damp cloth. The clear door should
be completely dried with a lint free cloth to prevent water
spots. To prevent scratching, do not use abrasive cleaners
or spray liquids on the clear door surface.
Do not exceed 7 Watts per bulb.
Upper Bulb Replacement (Figure 5)
1. Open door by pulling the handle.
2. Locate the upper bulb bracket.
3. Bend light retainer bracket down.
4. Locate and remove light bulb.
5. Insert and install new bulb.
Plastic Door Cleaning
To remove fingerprints or other marks, the clear doors
can be cleaned with a damp cloth. The clear door should
be completely dried with a lint free cloth to prevent water
spots. To prevent scratching, do not use abrasive cleaners
or spray liquids on the clear door surface.
6. Bend light retainer bracket back into its original
position.
Stove Surface Cleaning
7. Close the door.
Use warm water only to clean painted surfaces of the
Stove. Do not use abrasive cleaners.
Figure 5
Servicing
Except for light bulb replacement and cleaning described
above, an authorized service representative should perform
any other servicing.
Figure 6
Screws
Screws
5
EXPLODED PARTS DIAgRAM
18
11
7
8
17
1
10
13
2
14
15
6
4
16
3
12
5
9
Replacement Parts List
Replacement Part:
1. Log Set . . . . . . . . . . . . . . . . . . . . . . . . .0438200200RP
2. Door. . . . . . . . . . . . . . . . . . . . . . . . . . . .0438610100RP
3. Foot . . . . . . . . . . . . . . . . . . . . . . . . . . . .0438680100RP
4. Flame Motor . . . . . . . . . . . . . . . . . . . . .2000210200RP
5. Heater Assembly . . . . . . . . . . . . . . . . . .2200490700RP
6. Thermostat . . . . . . . . . . . . . . . . . . . . . 2300150100RP*
7. 2-Position Switch. . . . . . . . . . . . . . . . . .2800070700RP
8. 3-Position Switch (On/Off/Remote) . . . . 2800071100RP
9. Cord Set . . . . . . . . . . . . . . . . . . . . . . . .4100040300RP
10. Upper Light Harness . . . . . . . . . . . . . . .4200120400RP
11. Mirror. . . . . . . . . . . . . . . . . . . . . . . . . . .5900060600RP
12. Reflector Assembly . . . . . . . . . . . . . . . .5900080600RP
13. Front Glass . . . . . . . . . . . . . . . . . . . . . .5900440100RP
14. Capacitor. . . . . . . . . . . . . . . . . . . . . . . .2300030100RP
15. Terminal Block. . . . . . . . . . . . . . . . . . . .4000070100RP
16. Control Knob . . . . . . . . . . . . . . . . . . . . .8800000300RP
17. Remote Control Receiver . . . . . . . . . . .3000380100RP
18. Remote Control Transmitter . . . . . . . . .3000370500RP
19. LED Log Driver (DS7425DLx) . . . . . . .3000390100RP
6
WIRINg DIAgRAM
DS7420 MOD A - D
7
move the bulb from side to side while pulling being
careful not to damage the light socket.
TO REPLACE UPPER LIgHT BULB
ꢀWARNINg: If unit was operating prior to servicing
allow at least 10 minutes for light bulbs and heating ele-
ment to cool off to avoid accidental burning of skin.
5. Replace the lower light bulbs.
6. Reassemble in the reverse order as above.
LOWER LIgHT BULB REQUIREMENTS: Quantity of 3
– 35 watt Halogen Quartz lamps, 120 volt, G9 base. DO
NOT ExCEED 35 WATTS PER BULB
ꢀWARNINg: Disconnect power before attempting any
maintenance or cleaning to reduce the risk of electric
shock or damage to persons.
TO REPLACE MAIN POWER SWITCH
Light bulbs need to be replaced when you notice a dark
section of the flame or when the clarity and detail of the
log exterior disappears. There is one bulb at the top of the
opening that illuminates the log set exterior and two bulbs
under the log set which generate the flames and embers.
ꢀWARNINg: If unit was operating prior to servicing
allow at least 10 minutes for light bulbs and heating ele-
ment to cool off to avoid accidental burning of skin.
ꢀWARNINg: Disconnect power before attempting any
maintenance or cleaning to reduce the risk of electric
shock or damage to persons.
It is a good idea to replace all of the light bulbs at one
time if they are close to the end of their rated life. Group
replacement will reduce the number of times you need to
open the unit to replace the light bulbs.
1. Remove back panel screws located along the rear of
the top panel.
1. Open door by pulling the handle.
2. Locate the upper bulb bracket.
3. Bend light retainer bracket down.
4. Locate and remove the light bulb.
5. Insert new bulb.
2. Open front door and release the Cams located in the
upper corner of both side panels.
! NOTE: To release Cams ensure arrow on Cam is facing
up.
6. Bend light retainer bracket back into its original posi-
tion.
arrow
7. Close the door.
3. Remove top panel.
UPPER LIgHT BULB REQUIREMENTS: Quantity of 1
clear chandelier or candelabra bulbs with an E-12 (small)
socket base, 7 watt rating.
4. Locate the main on/off switch mounted on the rear
panel and disconnect the wiring clips and connections
noting their original locations.
TO REPLACE LOWER LIgHT BULBS
5. Depress the retainer clips on the rear of the switch and
push the switch out of the rear cover.
ꢀWARNINg:If unit was operating prior to servicing allow
at least 10 minutes for light bulbs and heating element to
cool off to avoid accidental burning of skin.
6. Properly orient the new switch and connect all of the
wiring clips and connections.
7. Reassemble in the reverse order as above.
ꢀWARNINg:Disconnect power before attempting any
maintenance or cleaning to reduce the risk of electric
shock or damage to persons.
TO REPLACE UPPER LIgHT ON/OFF
SWITCH
Light bulbs need to be replaced when you notice a dark
section of the flame or when the clarity and detail of the
log exterior disappears. There is one bulb at the top of the
opening that illuminates the log set exterior and three bulbs
under the log set which generate the flames and embers.
ꢀWARNINg: If unit was operating prior to servicing
allow at least 10 minutes for light bulbs and heating ele-
ment to cool off to avoid accidental burning of skin.
ꢀWARNINg: Disconnect power before attempting any
maintenance or cleaning to reduce the risk of electric
shock or damage to persons.
It is a good idea to replace all of the light bulbs at one
time if they are close to the end of their rated life. Group
replacement will reduce the number of times you need to
open the unit to replace the light bulbs.
1. Remove back panel screws located along the rear of
the top panel.
1. Remove the stove pipe kit (if equipped).
2. Open front door and release the Cams located in the
upper corner of both side panels.
2. Gently place stove on its back on a flat surface.
3. Remove the heater cover retaining screws located on
the bottom of the stove and lower heater and light as-
sembly out onto the floor.
! NOTE: To release Cams ensure arrow on Cam is facing
up.
4. Remove the burnt out bulb(s) by pulling straight out
arrow
of socket. If bulbs are difficult to remove form socket
8
3. Remove top panel.
arrow
4. Locate the upper light on/off switch mounted on the
rear panel and disconnect the wiring clips and connec-
tions noting their original locations.
3. Remove top panel.
5. Depress the retainer clips on the rear of the switch and
push the switch out of the rear cover.
4. Locate the heater on/off switch mounted on the rear
panel and disconnect the wiring clips and connections
noting their original locations.
6. Properly orient the new switch and connect all of the
wiring clips and connections.
5. Depress the retainer clips on the rear of the switch and
push the switch out of the rear cover.
7. Reassemble in the reverse order as above.
6. Properly orient the new switch and connect all of the
wiring clips and connections.
TO REPLACE FLAME MOTOR/FLAME
ROD
7. Reassemble in the reverse order as above.
ꢀWARNINg: If unit was operating prior to servicing
allow at least 10 minutes for light bulbs and heating ele-
ment to cool off to avoid accidental burning of skin.
TO REPLACE HEATER THERMOSTAT
CONTROL
ꢀWARNINg: If unit was operating prior to servicing
allow at least 10 minutes for light bulbs and heating ele-
ment to cool off to avoid accidental burning of skin.
ꢀWARNINg: Disconnect power before attempting any
maintenance or cleaning to reduce the risk of electric
shock or damage to persons.
1. Gently place stove on its back on a flat surface.
ꢀWARNINg: Disconnect power before attempting any
maintenance or cleaning to reduce the risk of electric
shock or damage to persons.
2. Remove the heater cover retaining screws located on
the bottom of the stove and lower heater and light as-
sembly out onto the floor.
1. Gently place stove on its back on a flat surface.
3. Remove all of the mounting screws on the heater cover
and separate the cover from the heater and light as-
sembly.
2. Remove the heater cover retaining screws located on
the bottom of the stove and lower heater and light as-
sembly out onto the floor.
4. Locate the flame motor and flame rod assembly and
remove the wiring clips and connections located by the
heater assembly noting their original locations.
3. Remove all of the mounting screws on the heater cover
and separate the cover from the heater and light as-
sembly.
5. Remove the flame motor mounting screws and discon-
4. Locate the thermostat mounted to the heater cover and
disconnect the wiring connections noting their original
locations.
nect the flame motor from the flame rod.
!
NOTE: When removing the flame motor some dam-
age may occur to the flame rod. If flame rod is damaged
5. Pull off the thermostat control knob to expose the
mounting screws.
replace to insure proper operation.
6. Reassemble in the reverse order as above.
6. Remove the mounting screws and remove the heater
thermostat control switch.
TO REPLACE HEATER ON/OFF
SWITCH
7. Properly orient the new heater thermostat control and
connect all of the wiring connections.
8. Reassemble in the reverse order as above.
ꢀWARNINg: If unit was operating prior to servicing
allow at least 10 minutes for light bulbs and heating ele-
ment to cool off to avoid accidental burning of skin.
TO REPLACE HEATER ASSEMBLY
ꢀWARNINg: If unit was operating prior to servicing
allow at least 10 minutes for light bulbs and heating ele-
ment to cool off to avoid accidental burning of skin.
ꢀWARNINg: Disconnect power before attempting any
maintenance or cleaning to reduce the risk of electric
shock or damage to persons.
ꢀWARNINg: Disconnect power before attempting any
maintenance or cleaning to reduce the risk of electric
shock or damage to persons.
1. Remove back panel screws located along the rear of
the top panel.
2. Open front door and release the Cams located in the
upper corner of both side panels.
1. Gently place stove on its back on a flat surface.
2. Remove the heater cover retaining screws located on
the bottom of the stove and lower heater and light as-
sembly out onto the floor.
!
NOTE: To release Cams ensure arrow on Cam is fac-
ing up.
3. Remove all of the mounting screws on the heater cover
9
and separate the cover from the heater and light as-
sembly.
4. Lift the top off of the unit. Carefully remove the mirror
and store in a safe place to prevent damage.
4. Locate the heater assembly and disconnect the wiring
connections noting their original locations.
5. Locate the circuit board on the rear wall of the unit.
6. Remove wiring connections from circuit board noting
their original locations.
5. Remove heater mounting bracket screws and set aside
heater assembly.
7. From inside the unit, break off the 4 mounting studs
by grasping with pliers and twisting on the protruding
part of the stud, push the remainder of the studs out
through the back panel.
6. Properly orient the new heater assembly and connect
all of the wiring clips and connections.
7. Reassemble in the reverse order as above.
!
NOTE: New mounting studs are supplied with the
replacement circuit board
TO REPLACE THE POWER CORD
8. Reassemble in the reverse order as above.
ꢀWARNINg: If unit was operating prior to servicing
allow at least 10 minutes for light bulbs and heating ele-
ment to cool off to avoid accidental burning of skin.
TO REPLACE LOg SET DRIVER
BOARD - DS7425DLX MODEL ONLY
ꢀWARNINg: Disconnect power before attempting any
maintenance or cleaning to reduce the risk of electric
shock or damage to persons.
ꢀWARNINg: If unit was operating prior to servicing
allow at least 10 minutes for light bulbs and heating ele-
ment to cool off to avoid accidental burning of skin.
1. Gently place stove on its back on a flat surface.
2. Remove the heater cover retaining screws located on
the bottom of the stove and lower heater and light as-
sembly out onto the floor.
ꢀWARNINg: Disconnect power before attempting any
maintenance or cleaning to reduce the risk of electric
shock or damage to persons.
3. Remove all of the mounting screws on the heater cover
and separate the cover from the heater and light as-
sembly.
1. Open door by pulling the handles.
2. Loosen the 2 retainers on the inner sides of the unit by
turning counter clockwise.
4. Locate and disconnect the power cord wiring connec-
tions noting their original locations.
3. Remove 4 screws that secure the top on the rear of the
unit.
5. With needle nose pliers grasp the power cord strain
relief grommet from inside the heater cover and push
while twisting to remove.
4. Lift the top off of the unit. Carefully remove the mirror
and store in a safe place to prevent damage.
5. Locate the circuit board on the rear wall of the unit.
6. Pull the power cord out through the hole in the heater
cover.
6. Remove wiring connections from circuit board noting
their original locations.
7. Install the new power cord through the hole in the
heater cover and connect all of the wiring connections
in their original locations.
7. From inside the unit, break off the 4 mounting studs
by grasping with pliers and twisting on the protruding
part of the stud, push the remainder of the studs out
through the back panel.
8. Install the power cord retaining grommet on the power
cord and insert into the hole in the heater cover.
!
NOTE: New mounting studs are supplied with the
replacement circuit board
9. Reassemble in the reverse order as above.
8. Reassemble in the reverse order as above.
TO REPLACE REMOTE CONTROL
RECEIVER BOARD
ꢀWARNINg: If unit was operating prior to servicing
allow at least 10 minutes for light bulbs and heating ele-
ment to cool off to avoid accidental burning of skin.
ꢀWARNINg: Disconnect power before attempting any
maintenance or cleaning to reduce the risk of electric
shock or damage to persons.
1. Open door by pulling the handles.
2. Loosen the 2 retainers on the inner sides of the unit by
turning counter clockwise.
3. Remove 4 screws that secure the top on the rear of the
unit.
10
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.
Unit turns on or off by itself
Remote control has a similar frequency
to other remotes in the area.
Replace Remote Control
Radio frequency disturbance from out-
side sources.
Replace hand held remote control and receiver board
where necessary.
Defective circuit board
Replace circuit board
Lights dim in room while the unit Unit is drawing close to circuit current
Move the unit to another outlet or install unit on a dedi-
cated 15 amp circuit
is on
rating
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.
Appearance
Stove does not turn on
Improper operation
Refer to Operation Section
Initialize the remote control
Replace main on/off switch
Remote control not initialized to stove
Defective main on/off switch
Defective remote control
Install new battery into the handheld transmitter. Re-
configure remote where necessary
Replace remote control circuit board where necessary
Replace remote control switch board
Replace circuit board
Defective remote control switch
Defective circuit board
Loose wiring
Check wiring connections
No incoming voltage from the electrical
wall socket
Check Fuse/Breaker Panel
Flame Frozen
Defective flame motor
Loose wiring
Replace flame motor
Check wiring connections
Replace light bulbs
Flame not bright or flame not
Burnt light bulbs
visible
Loose wiring
Check wiring connections
Replace light harness
Replace light bulbs
Defective light harness
Burnt light bulbs
Log set dim, not glowing
Flame Shutter
Defective flame motor
Log set not positioned properly
Replace flame motor
Check log set for proper fit
Light leaking around the log set
Heater
Heater is not turning off
Improper operation
Refer to Operation Section
Replace heater on/off switch
Trace wiring in unit
Defective heater on/off switch
Loose wiring
Defective remote control
Defective circuit board
Replace remote control
Replace circuit board
11
PROBLEM
CAUSE
SOLUTION
Heater Continued
Heater is not turning on
Improper operation
Refer to Operation Section
Defective heater assembly
Defective heater on/off switch
Build up of dirt/dust in heater assembly
Defective Motor
Replace heater assembly
Replace heater on/off switch
Clean out heater assembly
Replace Motor
Heater is turning off after a
couple of minutes of operation
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
Improper operation
Defective thermostat
Loose wiring
Replace heater assembly
Refer to Operation Section
Replace thermostat
Heater fan turns on but heater
lacks heat
Trace wiring in unit
Defective heater assembly
Normal Operation
Replace heater assembly
Heating element is glowing red
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 heater on/off switch
Defective heater assembly
Defective thermostat
Replace heater on/off switch
Replace heater assembly
Replace thermostat
Noise
Excessive noise with the heater
on
Dirty blower assembly
Clean blower assembly
Replace heater assembly
Defective blower assembly
Grinding or excessive noise with Moving flame rod hitting or rubbing
Ensure rod is straight and mounted properly in the
bracket, spinning freely away from other components.
Replace if necessary.
the heater off
against internal components
Defective flame motor
Replace flame motor
12
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