Troubleshooting guide
4.3
Cooling Fan Problems
Anomaly
Possible Cause
Corrective Action
section
Fan does not run
No power supply
800
Ω
resistor broken
Replace 800
Ω
resistor
7.12
Bad connection
Relay on power
Board.
Check the connectors and the harness.
Replace the PB
7.18
Fan does not run
Power supply ok.
Blocked rotor
Replace fan
7.2
Burned coil
Replace fan
7.2
Noisy fan
Lose attachment
screws on cooling
assembly
Check attachment screws on cooling
assembly or replace fan
7.2
The cooling fan is always on
The control is
measuring a high
temperature inside
the cavity
Check all the connections between the
sensor and the Display Control.
--
Check the probe temperature sensor .
7.14