Rheem 834 Series Service Instructions Manual page 24

Fault Finding Chart – Red LED 2 Flash Indication
Red LED 2 Flash Ignition module circuit abnormal
Are all wiring plugs
and wiring connectors
firmly connected?
YES
Replace ignition module
Does red LED 2 flash
fault indication
persist?
Fault Finding Chart – Red LED 3 Flash Indication
MASV faulty
Red LED 3 Flash
Are all wiring plugs
and wiring connectors
firmly connected?
YES
Is SV3
resistance ok?
(TEST 3)
YES
Is MASV
resistance ok?
(TEST 4)
YES
Replace temperature
controller
Does red LED 3 flash
fault indication
persist?
TM081 Rheem 834 Series Hydroelectric CFGWH Service Instructions
REV: AA Issued: 22/02/17
This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed uncontrolled.
NO
NO
YES
NO
NO
NO
NO
YES
Firmly connect wiring
connector(s) and/or plug(s).
Fault rectified.
Replace temperature controller
and reinstall original ignition
module.
Firmly connect wiring
connector(s) and/or plug(s).
Replace gas valve assembly.
Fault rectified.
Replace gas valve assembly
and reinstall original
temperature controller.
24