Rheem 70103 - Timer and Calibration Faults; Error Codes E, G

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TM063 701, 702 & 703 Series Boiling Water Unit Service Instructions
Revision D: Feb 2017
This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled”
Error Code E
Error Code E Expired filter
This error code will not affect
appliance operation. Continue
with fault diagnosis.
To reset or deactivate filter
counter refer to section on ‘Timer’
Error Code G
Error Code G
Calibration
time out
Successful recalibration
performed. Check BWU
operation.
BWU can be reset by
disconnecting power then
restoring power after
waiting 30 seconds.
Is error code G still
displayed?
Reset BWU
BWU will attempt
recalibration
NO
1.2
Chart 1.2 is part of and can
be located within Error code
L fault finding chart.