Troubleshooting
Error 54/64
Fan error. The gas fan RPM before ignition is not correct.
Go to the test menu. Test the gas fan.
If no, test the gas fan. Verify
Verify that the RPMs are registered.
that there is power input.
Test the gas fan: Set the speed at 2000
RPM and verify that the actual RPM
plugs from the IO board J18,
J19 and J20. The fan should
run at full speed. If no RPMs
are registered, change the
Verify that the main contactor is
contactor is activated, and
Check the fuses and the wires.
Error 55/65
Ignition failure. Warning only: did not ignite at first try.
1 Check, clean, or change the
electrode or burner.
2 Go to test menu.
Perform the start-up sequence.
SERVICE MANUAL 51
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