XSol Diagnostic System

RESISTANCE HARNESS RECTIFICATION GROUND

Set Appliance State:

Isolate Mains Power to appliance as per TOPs P4

Set Multimeter to Resistance

Disconnect X5 from the PCB
Disconnect the flame sense lead from the safety sensor

Measurement:

Measure the resistance between the disconnected lead and the black wire marked with the earth symbol on X7.
Short circuit expected.

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