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”.
Error Code 76
Communication fault with remote temperature control
Error Code 76
Will the unit operate with
remote controls removed?
Either the wiring or one of the controllers is at
fault. Connect up each controller one at a time
on a new cable to identify the faulty item.
YES
Remove all remote control cables
from terminal block on underside
of heater.
Inspect each of the remote
controls that are fitted to the
appliance and ensure that there is
no duplication of controllers.
Replace control PCB.
Error code 76 will remain if more than 1
type of the same controller is fitted.
NO
Error Code 79
Fan Motor Current Fault
Error Code 79
Is error code 79
redisplayed?
YES
Isolate power, remove the J
connector from the control
PCB and restore power.
Replace the control PCB.
Isolate power, refit the J
connector to the control PCB
and restore power.
NO
Is error code 79
redisplayed?
Refer to Error Code 61
procedures.
Replace the fan assembly.YES
NO
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