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WARNING: Turn off power supply to the boiler before removing or installing any parts.
motor
Fan
wiring harness
constant 24 volts DC.
Tachometer cable
Feedback signal
No feedback signal from fan motor.
Check the wiring harness to the fan motor and control
unit. Check power supply to motor during combustion
process, should be 24 volts DC.
33
008082013GW
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