Rinnai FC510N User Manual page 29

Burner Assembly Removal
Caution: Shut off gas and power supply to the unit before proceeding.
1. Disconnect the burner gas line from the gas control valve, (1) screw. Pull retainer clip off burner gas line. Pull gas
line loose from the gas control valve. Verify O-ring is intact and in good condition.
2. Unplug the fan motor wiring harness from the P.C. board.
3. Unplug (10) pin safety circuit wiring harness from the P.C. board.
4. Unplug the POV gas solenoid valve.
5. Unplug (2) pin connector at P.C. board for the igniter.
6. Disconnect both ground wires shown below.
1
Burner gas line
6 Ground wires for PCB and power supply
POV solenoid valve
4
10 pin connector for safety circuit
3
2 4 pin connector for fan motor
5
2 pin connector for igniter