TM090 12-26 Series II CFGWH Service Instructions
REV AB – Issued February 2019
This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”
Flame Rod and Igniter Electrode removal: (Procedure 7)
Note One of the flame rods share a common clamping bracket with the Igniter
1. Remove the front panel. Refer to Procedure 2.
2. Disconnect the black and grey wires from inside the flame rod and Igniters’ silicon
boots.
3. Remove the 3 x screws retaining the electrodes to the front burner plate
4. Carefully remove the electrodes (item 734 and 736) and clamping bracket assemblies
noting the angular position of the flame rod and Igniter electrodes, for correct re-
alignment.
5. Reassemble in reverse order of above.
6. Replace the felt gaskets (item 740) if required.
7. Test for gas leaks using soapy water solution..
Proportional Gas Flow Regulating Valve: (Procedure 8)
1. Remove the front panel and PCB assemblies. Refer to Procedures
2 and 5.
2. Disconnect the gas supply pipe from the gas inlet connection.
3. Remove the three screws from the gas inlet connector. Pull down
to withdraw the connector and O-ring from the base of the water
heater.
4. Unclip the red and black wires from the side of the proportioning
valve.
5. Remove the 2 x PH screws securing the PGRV to the Lower
Burner Assembly.
6. Push the valve to the rear of the cabinet then rotate clockwise to
carefully remove it from the water heater.
7. Disconnect the Yellow and Black wires from the Gas Inlet Solenoid Valve.
8. Reassemble in reverse order of above. Replace gaskets (item numbers 145 and 146) if
required.
9. Test for gas leaks with soapy water solution.
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