SimpliFire • SF-FORMAT36 Service Manual • 2042-961 • 9/21
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3.4 Heater Assembly Replacement
1. Disconnect electrical service to the appliance. For
hardwired electrical installations, find and shut-off
service at the breaker. For installations that use a
corded plug, disconnect the cord from the receptacle.
2. Refer to Mantel Removal Instructions.
3. Follow the Mantel Removal Instructions above, to
remove the top mantel.
4. Remove twelve (12) screws from top panel of appli-
ance, and remove top panel. See Figure 3.
5. Unplug heater assembly wire harness. See Figure 4.
6. Remove four (4) screws, securing the heater assem-
bly to the appliance. See Figure 5.
7. Remove and discard heater assembly.
8. Attach new heater assembly to appliance with four
(4) screws. See Figure 5.
9. Plug in heater assembly. See Figure 4.
10. Secure top panel to fireplace with twelve (12)
screws. See Figure 3.
11. Refer to Mantel Installation Instructions to re-install
the mantel.
12. Plug in the appliance power cord, or for hardwired
installations restore power at the breaker.
Figure 3 Appliance top panel removal showing left side screws (6
shown, 12 total)
Figure 4 Heater assembly wire harness
Figure 5 Heater assembly, screw removal location
