TM049 27L Continuous Flow Service Instructions
REV AL
– Issued April 2019
This document is stored and maintained electronically by Rheem Technical Support.
All printed copies are deemed “uncontrolled”.
55
Error Code 51
False Flame Detected.
Error Code 51, 72, 80
Display maintenance information
‘0y’ on remote control.
Replace gas valve assembly.
NO
Does the flame extinguish
completely after shut down?
Does flame detection
maintenance information ‘0y’
indicate 01?
YES
Clean or replace the flame rod
electrode.
NO
Replace the control PCB.
YES
Does flame detection
maintenance information ‘0y’
indicate 01?
Isolate power supply for 10
seconds to clear error code.
Restore power. Continue fault
diagnosis if an error reoccurs.
Detach flame sensor connector
from terminal U on control PCB.
Display maintenance information
‘0y’ on remote control.
YES
NO