2-16. GAS CONTROL VALVE
ASSEMBLY
(Continued)
2-17. BLOWER MOTOR
ASSEMBLY
2-16
7. With the bracket dropped down, remove the two screws behind
the bracket securing the gas control valve to the bracket.
8. Install the new gas control valve in reverse order.
The blower motor assembly induces the draft for the burners. If the
blower motor fails, the air switch will fail to close, causing an
"E-20B" error code in the display.
1. Remove electrical power supplied to the unit.
To avoid electrical shock or property damage, move the
POWER switch to OFF and disconnect main circuit
breaker, or unplug cord at wall receptacle.
2. Remove screws securing the two rear covers to the unit.
3. Remove the wire cover from the blower motor housing.
Model OFE/OFG-321,322,323,324
203