Error Code 11 - Rheem 874W27NF Service Manual

Error Code 11

Ignition Failure. Error code 11 can be caused by one of three different scenarios. Match the
scenario to the fault condition before continuing fault finding. At a minimum check the
following in all cases:
1 Ensure gas supply is available.
2 Bleed all air from gas lines.
3 Ensure appliance is properly earthed.
4 Ensure gas line, meter, and regulator are sized properly.
5 Ensure gas type and gas pressure to the unit is correct.
Error Code 11 – Scenario 1
Is voltage supplied to the
ignition module?
TEST 8
YES
Is the black ignition lead from
module to electrode intact?
YES
Is the ignition electrode
clean?
YES
Is the ignition electrode
damaged?
NO
Replace ignition module.
TM061 Rheem 27 Water Star Service Instructions – Issued: 11/10
REV A Issued 08/13
This document is stored and maintained electronically by
Fan is operating; igniter does not spark.
Is wiring from power supply
NO PCB to ignition module
intact?
NO Repair/Replace ignition lead.
NO Clean ignition electrode.
YES Replace ignition electrode.
Service. All printed copies not bearing this statement in RED are deemed "uncontrolled"
YES Replace power supply PCB. Replace power supply PCB.
NO Rectify wiring.
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