Board Removal - Rinnai FC510N User Manual

P.C. Board Removal
Caution: Disconnect the power and gas from the unit before proceeding.
1. Remove (1) screw from plastic P.C. board casing, front of unit 1/3 the way up the unit.
2. Lift up on the P.C. board casing and pull board out of unit.
3. Disconnect all wire connectors from P.C. board. Take care not to stress the connections when unplugging them.
Press in on the latch to release the connector before unplugging connection. You can use a small screw driver to
push in on these latches.
10 Pin Connector
2 Pin Connector
Safety Circuit/POV.
Room Thermistor
Push button
used to
program gas
pressures
6 Pin Connector
Thermocouple
output terminal
on rear of unit
Ground wire
4 Pin Connector
15 Pin Connector
Control Panel
Fan Motor
SV1 & SV2
Connector
2 Pin Connector
5 amp
Igniter
fuse
2 Pin
120 Volt Power Supply