Removal Of The Combustion Fan; Removal Of The Sparker Pcb; Removal Of The Main Transformer; Removal Of The Gas Control - Rinnai ENERGYSAVER RHFE-308FTR Service Manual

8) Removal of Combustion Fan
CAUTIO
240 volt potential exposure. Isolate the
applaince and reconfirm with a neon
screwdriver or multimeter.
a. Remove front panel assembly, see section
1.
b. Remove main PCB, see section 7 b)~e).
c. Remove four (4) combustion fan securing
screws.
d. Grip fan motor plate and pull forward to
remove fan from casing.
e. Remove connector from fan motor.
Note: Arrow should be aligned when fan
assembly is replaced.
9) Removal of Sparker PCB
CAUTIO
240 volt potential exposure. Isolate the
applaince and reconfirm with a neon
screwdriver or multimeter.
a. Remove front panel assembly, see section
1.
b. Remove one (1) earth lead from heat
shield.
c. Disconnect 5-pin power supply connector.
d. Unclip sparker PCB from main PCB
housing from securing lugs on side.
Energysaver RHFE-308 FTR
10) Removal of Main Transformer
CAUTION
240 volt potential exposure. Isolate the
applaince and reconfirm with a neon
screwdriver or multimeter.
a. Remove front panel assy, see section 1.
b. Remove main PCB, see section 7 b)~e).
c. Remove one (1) securing screw from
transformer mounting bracket.
d. Pull forward.
11) Removal of Gas Control
CAUTION
240 volt potential exposure. Isolate the
applaince and reconfirm with a neon
screwdriver or multimeter.
a. Turn off gas supply at the meter and
disconnect appliance from installation.
b. Remove front panel assy, see section 1.
c. Release solenoid connectors and gas
supply tube securing screw (1), release gas
supply tube. Take care with O-ring.
- 49 - ©Rinnai