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If the new fan motor still continues to stop, check your motor contactor if it is a three phase motor. Possibly one phase is missing or one contact does not give power. You can check it by switching the main power of the unit off then press the contactor manually. Then use a tester for continuity of each lines from the contactor. If contactor is defective change the contactor.
Check also the motor overload and test the rated ampere of the motor. If the motor amperage is not higher than the overload rating, replace the overload.
The problem you are having is most likely a defective=> WR55X10473 Main Control Board. The defectiveWR55X10473 Main Control Board may have been caused by a defective=> WR60X10185 Evaporator Fan Motor. If your motor has a white thermistor in the connector you need the related fan motor WR60X10074. If it has a connector for a light you will need a=> WR23X10467 Fan MotorReason I am telling you this is because if the fan is defective it can again damage the Main Control Board. The same wiring diagram is found=> HERE or HERE by clicking on the wiring diagram.Listen to this video because it explains what I am trying to say. GE Refrigerator Fan Motor DiagnosticsIf you would like I can walk you through the diagnostic's to see what is going on. I am here should you have questions, Thanks John Tripp Appliance 911
Power-on sequence The power-on sequence is for the purpose of the printer initialization and checking for possible malfunctions.
The following is the sequence from when the printer is turned on until it enters STBY mode.
Power on
Central processing unit (CPU) initialization
ASIC initialization
Video interface communication start
Residual paper check by each sensor signalling paper presence
Initial drive for main motor, pickup motor, and fuser/delivery motor
Fuser heater initial drive by controlling fuser temperature targeting for 100°?C
Initial drive for scanner motor
Failure/Abnormality check
Detect scanner failure
Fuser failure
Door open during the above periods
Communication with memory tag
Cartridge presence detection
Main motor failure detection The CPU determines the main motor failure, stops the printer, and notifies the formatter of error status, when it encounters the following conditions.
Main motor start-up abnormality.
The interval of the MAIN MOTOR SPEED DETECTION signal (/MAINMFG) does not become the specified interval after 1000 ms of the main motor drive start.
Main motor rotation abnormality. The interval of the /MAINMFG signal stays at an irregular interval for 100 ms and longer after once it has become the specified interval.
Fan motor failure detection The CPU determines the fan motor failure and notifies the formatter when it encounters the following condition. The FAN LOCK signal (FANLCK) is “H” for approximately 10 seconds and longer during fan motor rotation.
Your description makes it sound as though the printer has a main CPU failure as all other faults should display an error or error code. In the light of this it seems that the printer will need to be looked at by a service engineer asap.
VENT FAN 0BH, SUCTION FAN FOR THE FUSER (Hot Part) 0EH, MAIN MOTOR 08H, three motor going bad at once ????? mite have a main board fault, or the printer has been in a very dirty area, for the two fans, main motor not in use for a long time, or something is jammes
I too had this problem, I had to disconnedct the main power to the PC, give it 30 seconds to bleed any residual capacitor charge and then plugged back in and hit the main power switch and it booted normally.
don't rule out bad motor yet, nor anything with a wire. Many possible problems:
1.) motor badly manufactured with wire ready to disconnect
2.) motor "fused" or has a wire that has melted...this can happen quickly with minimal smell
3.) some other wire inside unit has become disconnected
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