SimpliFire SF-SCT43-BK User manual

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SimpliFire • SF-SCT43-BK, SF-SCT55-BK Service Manual • 2043-960 • 7/20
SERVICE MANUAL
Glass Front, Heater, Control Board, LED Spotlight, Ember Bed Cover, Glass Side Panels, Glass Screen
Panel, Remote Receiver, Flame Screen, Rotisserie, Rotisserie Motors, Flame and Ember LEDs,
Model: SF-SCT43-BK, SF-SCT55-BK
- Instructions -
CAUTION! Risk of Cuts, Abrasions or Flying Debris.
Wear protective gloves and safety glasses during
installation and service. Sheet metal edges are sharp.
Leave this manual with party responsible for use
and operation.
NOTICE! DO NOT discard this manual. Important service
and maintenance instructions included.
NOTICE! DO NOT discard any hardware while
servicing. It may be reused.
WARNING! Risk of Shock! Always turn off the circuit
breaker before moving or servicing.
Tools and Supplies Needed
Before beginning the installation be sure that the following
tools and building supplies are available.
Needle-nose pliers
Gloves
Magnetic Phillips screwdriver
Safety glasses
Drill
Flat blade screwdriver
CAUTION! Two adults recommended for the removal
or installation of glass front. Use caution when han-
dling glass. Failure to do so could result in personal injury
or property damage.
WARNING! Risk of Personal Injury or Property Dam-
age! Failure to follow instructions below may result in
damage to the equipment and / or may expose the user
to the risk of re, serious injury, illness or death.
Glass Front Replacement
1. Remove the two (2) thumb screws and brackets
located on the inner upper corners of the appliance
opening. See Figure 1.
2. Tilt the glass away from the appliance and lift out of
the bottom glass channel.
3. Set the bottom edge of glass into the glass channel
and tip back into the appliance until it rests against
the glass stops.
4. Re-install the glass brackets and thumb screws.
Figure 1. Remove Glass Front
THUMB SCREWTHUMB SCREW

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Heater Assembly Replacement
1. Remove glass, see Glass Front Replacement
instruction.
2. Support the Heater Assembly and remove 4 screws.
See Figure 2.
3. Slowly lower Heater Assembly until cable connector
is accessible. See Figure 3.
4. Disconnect Heater Assembly cable connector. See
Figure 3.
5. Connect replacement Heater Assembly. See Figure
3.
6. Re-install Heater Assembly into appliance, be
careful not to pinch any wires.
7. Re-Install 4 screws.
8. Re-Install glass per Glass Front Replacement.
Figure 2 Heater Assembly
Figure 3 Heater Connector
Control Board Replacement
1. Remove glass, see Glass Front Replacement
instruction.
2. Support the Control Board Assembly and remove 4
screws. See gure 4.
3. Slowly lower Control Board Assembly until cable
connectors are accessible. See Figure 5.
4. Disconnect the seven separate connectors attached
to the Control Board Assembly and re-connect
the seven connectors to the new Control Board
Assembly. See Figure 5.
5. Re-install Control Board Assembly into appliance, be
careful not to pinch any wires.
6. Re-Install 4 screws.
7. Re-Install glass per Glass Front Replacement.
Figure 4 Control Board Location
Figure 5 Control Board Removal
HEATER ASSEMBLYHEATER ASSEMBLY
CONNECTORCONNECTOR
= SCREWS= SCREWS
= SCREWS

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SimpliFire • SF-SCT43-BK, SF-SCT55-BK Service Manual • 2043-960 • 7/20
Figure 6 Side Glass Panel Removal
= SCREWS
BRACKETS
Glass Side Panels Removal / Replacement
1. Remove glass, see Glass Front Replacement
instructions.
2. Remove media/logs from ember bed.
3. Remove spotlight LED, see Spotlight LED
Replacement instructions.
4. Remove screws (4) and brackets (2) holding each of
the side panels. See Figure 6.
5. Tilt the top of the side glass panel inward to remove
from the appliance.
6. Replace the side glass panel, sliding the side glass
panel as far back as possible, and reinstall the
brackets, see Figure 6.
7. Reinstall spotlight LED.
8. Reinstall media/logs.
9. Reinstall Glass Front per Glass Front Replacement.
LED Spotlight Replacement
1. Remove glass, See Glass Front Replacement
instruction.
2. Support the Spotlight LED and remove the (3)
screws holding it in place. See Figures 7 and 8.
3. Gently pull the Spotlight LED cable located on the
right end of the Spotlight LED until the connector is
visible. Disconnect the connector and remove LED.
See Figure 9.
4. Connect the new Spotlight LED to the connector and
feed the cable back into the cutout. See Figure 9.
5. Re-install Spotlight LED screws.
6. Re-install glass per Glass Front Replacement.
Figure 7 Spotlight LED Location
Figure 8 LED Spotlight
Figure 9 LED Spotlight Connector
CONNECTORCONNECTOR
SPOTLIGHT LEDSPOTLIGHT LED
SPOTLIGHT LEDSPOTLIGHT LED

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Accessing Internal Components (Receiver,
Flame Screen, Rotisserie Assembly, Ember
Bed Cover, Glass Screen Panel, Rotisserie
Motors, Flame and Ember Bed LEDs)
1. Remove glass, see Glass Front and Glass Side
Panel Removal/Replacement instructions.
2. With the logs/media removed, remove screws
holding the plastic ember bed cover down. Lift the
cover out of the appliance. See Figure 10.
3. While supporting the glass screen panel remove the
screws (4) in the glass screen panel bracket. See
Figure 11.
4. Tip the top of the glass forward and carefully lift the
glass out of the appliance.
5. When replacing glass screen, slide the over side
glass into the slot between the two brackets and tip
the glass back in place.
6. Reinstall glass panel bracket with four screws. See
Figure 11.
7. Reinstall ember bed cover with either 16 or 18
screws. See Figure 10.
Figure 10 Ember Bed Cover
Figure 11 Glass Screen Panel Removal
4 SCREWS TO BE REMOVED
(only two screws shown)
BRACKET
Remote Receiver Replacement
1. Remove glass, see Glass Front and Glass Side
Panel Removal/Replacement instruction.
2. Access internal components, see Accessing Internal
Components instructions.
3. Using a pliers, compress each barbed clip while
lifting the Remote Receiver Board evenly to
disengage it from the clip. See Figure 13.
4. Disconnect the receiver cable. See Figures 12 and
13.
5. Carefully align the new Remote Receiver Board
to the barbed clips and gently push in place. See
Figures 12 and 13.
6. Securely reconnect the wiring harness to the new
remote receiver. See Figure 12.
7. Re-install components removed to access internal
components, see Accessing Internal components
instructions.
8. Re-Install glass per Glass Front and Glass Side
Panel Removal/Replacement.
Figure 12 Receiver Location and Cable
RECEIVERRECEIVER
CABLECABLE
Figure 13 Receiver Removal
BARBEDBARBED
CLIPSCLIPS

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SimpliFire • SF-SCT43-BK, SF-SCT55-BK Service Manual • 2043-960 • 7/20
Flame Screen Replacement
1. Remove glass, see Glass Front and Glass Side
Panel Remove/Replacement instructions.
2. Access internal components, see Accessing Internal
Components instructions.
3. Remove the (3) screws in the top Flame Screen and
retaining bracket. Then remove the screws in the
bottom left and right corners of the Flame Screen
and retainer. Remove the Flame Screen. See Figure
14.
4. Install the replacement Flame Screen panel, smooth
(non-silk screened) side facing out by inserting the
ame screen in the channel, and re-attach brackets
and screws. See Figures 14 and 15.
5. Re-install components removed to access internal
components, see Accessing Internal components
instructions.
6. Re-Install glass per Glass Front Replacement.
Figure 14 Flame Screen
Figure 15 Glass Retainer/Ember Bed Bracket
Rotisserie Assembly and Rotisserie Motor
Replacement (Continued)
5. Remove motor bracket by removing three screws.
See Figure 17.
6. Remove two screws and two nuts that attach each
motor to the motor brackets. See Figure 18.
7. Disengage rotisserie rods from motors located in left
side of cavity. Use hand to shift the rotisserie rod
to the right until the rubber coupler on the left end
disengages from the motor shaft and lift out of the
appliance. See Figure 17.
If not replacing motors skip to step 13.
8. Remove each motor until the electrical connector is
visible. See Figure 18 and 19.
9. Disconnect the electrical connector to the motor. See
Figure 18 and 19.
10. Fasten the new motor to the motor bracket, with the
two screws and two nuts
11. Connect the new motor to the electrical connectors.
12. Re-install the motor and bracket with three screws.
See Figure 17.
13. Install the replacement (or existing) rotisserie rod.
Align the
rubber coupler with the motor shaft. Shift the rod to
the left until the rubber coupler fully engages the
motor shaft or on the left side. See Figure 17.
Replace the two screws for the rotisserie center
support. See Figure 16.
14. Re-install components removed to access internal
components, see Accessing Internal components
instruction.
15. Re-Install glass per Glass Front Replacement.
Figure 16 Rotisserie Center Support
CENTER SUPPORTCENTER SUPPORT
Rotisserie Assembly and Rotisserie Motor
Replacement
1. Remove glass, see Glass Front and Glass Side
Panel replacement instructions.
2. Access internal components, see Accessing Internal
Components instructions.
3. Remove the Flame Screen, see Flame Screen
Replacement instruction. Only remove Flame
Screen if replacing back Rotisserie.
4. Remove two screws from the rotisserie center
supports. See Figure 16.

SimpliFire • SF-SCT43-BK, SF-SCT55-BK Service Manual • 2043-960 • 7/206
Figure 17
Figure 19
COUPLERS
LED Assembly Replacement
1. Remove glass, see Glass Front and Glass Side
Panel Removal/Replacement.
2. Access internal components, see Accessing Internal
components instructions.
3. Only when replacing back LEDs: Refer to Rotis-
serie Assembly and Rotisserie Motor Replacement
steps 3, 4 and 7 to gain access to rear LEDs.
4. Remove screws holding the glass retainer/ember bed
bracket. See Figure 15.
Figure 20
Figure 21
= CONNECTORS= CONNECTORS
BARBED CLIPSBARBED CLIPS
CLIPSCLIPS
COVER PANEL
LED Assembly Replacement (Continued)
5. Remove the rear LED cover panel by removing the
screws. See Figure 20.
6. Locate Lighting LED circuit input power source con-
nectors in rear of opening, unplug the two connec-
tors. Unplug the connectors between the LED circuit
boards. See Figure 21.
7. Using a pliers, compress each barbed clip along the
front base circuit boards while lifting the boards
evenly to disengage them from the clips. Use pliers
to open/spread clips along rear LED strip while lifting
to disengage it from the clips. See Figure 21. Re-
move all LED circuit boards.
8. Install the new LED circuit boards by securing them
in the clips. See Figure 2.
9. Connect all lighting LED power source connectors to
the LED circuit boards. See Figure 20.
10. If removed, reinstall the Rotisserie Rod Assembly
per Rotisserie Assembly and Rotisserie Motor
Replacement.
11. Re-install the rear LED cover panel. See Figure 20.
12. Replace the glass retainer/ember bed bracket. See
Figure 15.
12. Re-install ame screen. see Flame Screen
Replacement instruction.
13. Re-install components removed to access internal
components, see Accessing Internal components
instruction.
14. Re-install Glass. Per Glass Front Replacement.
COUPLERSCOUPLERS
CONNECTORCONNECTOR
Figure 18
SCREWS & NUTSSCREWS & NUTS
MOTORMOTOR
BRACKETSBRACKETS

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SimpliFire • SF-SCT43-BK, SF-SCT55-BK Service Manual • 2043-960 • 7/20
SimpliFire Troubleshooting Guide
Symptom Possible Cause Corrective Action
Circuit breaker trips or fuse
blows when unit is turned on
Exceeding current rating of the
circuit breaker or fuse, perhaps from
operating other appliances on the
same circuit as the replace
Install unit onto a dedicated 15 amp circuit.
Lights in room dim while the
unit is on
Unit is drawing close to circuit current
rating Install unit onto a dedicated 15 amp circuit.
Fireplace will not come on
when using the manual
controls on the unit
Appliance is not plugged into an
electrical outlet Ensure plug is connected to a working outlet.
Hard-wire connections not correct (if
applicable) Review wiring instructions to ensure correct connection.
No incoming power from the electrical
outlet or electrical box Check fuse/breaker panel.
Defect in control board (PCB) Replace the control board (PCB).
Remote control does not work
Low/dead batteries Replace batteries in the remote.
Remote receiver is blocked, or remote
is not pointed directly at the receiver.
Ensure receiver is not blocked. Move closer to the
appliance.
Appliance power switch is in the off
"O" position (if equipped) Turn the power switch on, to the "I" position (if equipped).
Control board (PCB) malfunction? Replace control board (PCB).
Heater will not turn on, but
ame is functioning
Remote is in thermostat mode and
room temperature (temperature at
appliance thermistor) is higher than
the set point on the remote
Increase thermostat set point on the remote, or exit
thermostat mode (press the thermostat button until no
temperature set point is displayed on the remote). See
"Room Temperature and Thermostat Function" section of
the manual.
Appliance has overheated and safety
thermal switch has tripped
Unplug or turn off power at circuit breaker and allow it to
cool for 15 minutes. Then plug in the unit or turn power
back on at circuit breaker and turn unit back on.
Defective main control board Replace control board (PCB).
Defective heater assembly Replace heater assembly.
Heater shuts off automatically
or won’t stay on
Room temperature (temperature at
the appliance thermistor) is higher
than the set point on the remote
Increase thermostat set point on the remote, or exit
thermostat mode (press the thermostat button until no
temperature set point is displayed on the remote). See
"Room Temperature and Thermostat Function" section of
the manual.
Appliance has overheated and safety
thermal switch has tripped
Unplug or turn off power at circuit breaker and allow it to
cool for 15 minutes. Then plug in the unit or turn power
back on at circuit breaker and turn unit back on.
Heater emits an odor Normal operation
It is normal for the heater to emit an odor for a brief
amount of time after turning on. It is burning off dust that
has accumulated on the heater.
Flame does not move at all Flame rotisserie motor is stalled or
malfunctioning
Cycle unit on or off. If problem persists inspect rotisserie
and motor for blockage or interference. If no interference,
replace the control board (PCB) and rotisserie motor.
Portion of the ame not moving
or deformed ame effect
Flame LEDs out of place or dislodged
from the LED mounting bracket
Properly reposition ame LEDs into their mounting
bracket. See service manual for how to access ame
LEDs.
Visible ghosting on the ame
screen that does not move with
the ame
Downward LED accent lighting (if
equipped) is shining on the ame
screen instead of directly down on the
ember bed
Inspect downward accent lighting and reposition so no
light is projecting back onto the ame screen.
Flame shudder
Flame rotisserie contacting other
internal components when spinning
Ensure rod is straight and mounted properly and is
spinning freely without spindles hitting other components.
Defective ame rotisserie motor Replace rotisserie motor.

SimpliFire • SF-SCT43-BK, SF-SCT55-BK Service Manual • 2043-960 • 7/208
SimpliFire, a brand of Hearth & Home Technologies
7571 215th Street West, Lakeville, MN 55044
www.hearthnhome.com
SimpliFire Troubleshooting Guide (continued)
Symptom Possible Cause Corrective Action
Ember bed does not light up
Ember bed is turned off Refer to operation section of the user manual.
Loose wiring Check wiring to ember bed LEDs.
Defective control board (PCB) Replace control board (PCB).
Defective LED lights Replace ember bed LED lights.
Fireplace turns on by itself
Defective control board (PCB) Replace control board (PCB.)
Similar infrared signal from another
remote causing unit to turn on (pre-
2019 manufactured units only)
Some TV remotes may cause the replace to turn on for
appliances manufactured before 2019. Replace control
board (PCB).
Excessive noise with heater on Interference with fan blade Inspect heater assembly and fan for obstructions or
interference.
Defective blower motor Replace heater assembly.
Grinding or rubbing noise
(when heater is off)
Rotisserie hitting or rubbing against
internal components
Ensure rotisserie rod is straight and mounted properly
and is spinning freely without spindles hitting other
components. If sound is coming from friction with the
rotisserie bracket, apply grease to contact point