Zanussi E52 Motor Tachometer Generator Fault
My washing machine is starting to fill but then stopping.
Error Code is 52.
I have tried replacing, tacho, carbon brushes, motor but none seem to remove the code.
All wiring looks to be intact.
Is there anything else I can try?
Solution Summary
AI-generated from this discussion
This thread was marked as solved. Here's a summary of the problem and the fix, generated from the discussion below.
Zanussi washing machine E52 stopping after fill
- The problem
- The washing machine began to fill and then stopped, showing error code E52. The owner had already replaced the tacho, carbon brushes and motor, but the fault code remained.
- Likely cause
- E52 was explained as the control not receiving a motor tacho signal. Forum advice said to check the tacho circuit wiring and connectors between the motor and main PCB, with PCB fault only a possible diagnosis if wiring and connections proved sound. However, the confirmed repair was replacement of the carbon brushes and cleaning of the motor armature, after which the machine worked normally.
- What fixed it
- A visiting repair engineer replaced the carbon brushes and cleaned the motor armature. Earlier forum advice also recommended checking continuity of the two tacho wires from the motor to the main PCB and inspecting the related connectors and pins.
- Checks to try
- Existing replacements tried by the owner: tacho, carbon brushes and motor
- Visual check that wiring appeared intact
- Recommended continuity check of the two thin tacho wires between motor and main PCB
- Recommended inspection of motor plug, PCB connector and pins
- Parts or tools mentioned
- tacho
- carbon brushes
- motor
- continuity test meter
- analogue multimeter
- main PCB
Safety: Further diagnosis should be carried out by a suitably qualified appliance engineer.
5 Answers
Hello there. This error code means that the washing machine software is not receiving a signal from the motor Tacho coil. This fault is usually only reserved for when the washing machine otherwise believes the rest of the motor is working okay. There would be separate error codes for the carbon brushes, or maybe an open circuit motor.
So this fault typically occurs when the motor is actually running. In other words, the motor is running, but the software believes that it is not running. This is because it relies on the Tacho coil and Tacho magnet to tell when the motor is running.
I have a full article on this very subject on my main site Error E52 on a zanussi washing machine
Check it out and then if you have further questions post them back here please.
Need Professional Help or Spare Parts?
Thanks for the help. It's definitely not issue 1, 2 or 3 from your article.
How do I go about investigating 4?
What equipment do I need to do this and what readings am I looking for?
The only other thing that you could check is that there is not a connection issue between the main PCB and the tacho coil on the motor. You would need to trace the 2 thin wires from the motor connector that connect to the tacho coil back to the connector that connects to the main PCB. Obviously, the motor plug needs to remain connected.
Then you have to use a continuity test meter to test down one of the wires, all the way back to the motor, through the tacho coil, and back to the PCB connector. The tacho coil has a very high resistance, but you should get a reading. If you have an analogue multimeter, then when you touch and un-touch one of the connectors, you should see the needle moving back and forth.
If you can detect that there is no break in the wires, and no problems with the connectors and pins in both the motor plug and the PCB connector, then there's nothing left to check. Obviously, you would suspect a problem with the PCB itself. But this would be a gamble. It could fix the issue, but you could also just have a freak fault somewhere, or something that you have not checked properly, and fitting an expensive PCB could leave you with the same fault.
Need Professional Help or Spare Parts?
Thanks for the help.
In the end resorted to a visiting repair engineer who replaced the carbon brushes and cleaned the motor armature. It all seems to be working fine now.
Thanks for the update. It’s unusual for an error code saying it’s not receiving a signal from the tachometer coil to be caused by carbon brushes. They normally can detect a motor is open circuit and only mention tacho coil in circumstances I described. Zanussi must do it differently at least with this model.
Need Professional Help or Spare Parts?
Your Answer
Sign in to share your expertise and post an answer.
Related Questions
Zanussi washing machine is not working & is displaying error code E91
1 answer • 1 reply
Zanussi E10, drawer leak, softener
1 answer • 1 reply
Zanussi ZWF1437 Error E30
1 answer • 3 replies
Aeg L-72850M Error E52. Motor Makes Noise And Refuse To Move
1 answer • 1 reply
Zanussi - problem with drum
1 answer • 3 replies
2006 Zanussi fill level too low
1 answer • 18 replies
Zanussi ZWF 5140P (Flexi Dose) sound while draining
1 answer • 1 reply
Zanussi Z716WT83BI
1 answer • 4 replies
Zanussi Z816WT85BI not running drying cycle - Need help with diagnostic mode please
1 answer • 6 replies
Zanussi ZW171201 stuck on 1 minute
1 answer • 1 reply