Fault Finding Chart 3.1 - Rheem II Series Service Instructions Manual

Fault Finding Chart 3.1

3.1
False flame detection
malfunction
Is error code 72
displayed?
NO
Ignition failure or
cross light failure
Is error code 11
displayed?
YES
Did the burner
ignite momentarily?
NO
Did the igniter
spark?
NO
Test 12
Is voltage supplied
to the igniter?
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"
Is flame detection
signal in
YES
maintenance
information 00?
YES
NO
YES
Test 9
NO
YES
NO
YES
Replace the PCB assembly.
Clean or replace the combustion
chamber front panel assembly.
3.3
Flame detection problem. Check
condition of flame rod and leads.
Repair / replace as necessary.
3.2
Replace the PCB assembly.
Replace the igniter assembly,
electrode or cable.
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