77
11/6/2018
© 2015 Rinnai America Corporation
PROPRIETARY and CONFIDENTIAL
Enhancing Lives By Changing The Way Water Is Heated
11
No Ignition
- Verify parameters for vent length are set properly.
- Verify unit has been set up for the proper gas supply, LP or Natural
- Ensure the igniter is operational.
- Check igniter wiring harness for damage.
- Check igniter gap for proper setting, should be 3.5 mm.
- Check gas solenoid valves for open or short circuits.
- Check burner for blockage.
- Check burner mesh for damage.
- Verify parameter for high altitude was properly set.
- Check for continuously wind over 40 miles per hour
- Ensure exhaust check valve behind fan mount is not stuck in the closed position.
- Verify nothing is stuck in the gas valve venturi.
- Confirm the appropriate orifice venturi is being used in the gas valve
- Replace fan
12
Flame Failure
- Check for obstructions in the flue outlet.
- If the system is propane, ensure the tank has adequate quantity in it.
- Ensure the gas line, meter and / or regulator is sized properly.
- Ensure gas type and inlet gas pressure is correct.
- Bleed all air from the gas line.
- Ensure proper venting material was installed.
- Check parameter for high altitude was properly set.
- Check power supply for proper voltage and voltage drops.
- Ensure flame rod wire is connected and for carbon build-up on flame rod.
- Disconnect and reconnect all wiring harnesses on unit and PC Board.
- Check for DC shorts at components.
- Check gas solenoid valves for open or short circuits.
- Remove burner plate and inspect burner mesh for damage or debris.
- Ensure the internal air filter is clean.
- Verify proper venturi for gas type being used is installed in gas valve.
Fault Codes
