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I went out to this machine yesterday with a new motor as I looked at it earlier in the week and it showed a tacho fault, so I fitted the new motor and had the same fault,so I checked continuity through the motor harness as I have had wiring give same fault all ok replaced wiring just in case still the same. It turned out to be the module what a odd fault has anyone had this problem before 😕
Re: Hotpoint Wmf740puk.r
From the service manual F02 fault.
– Check for water leaks that may affect connector J009 causing the
contacts to short circuit;
– Check to ensure motor is not mechanically jammed or seized;
– Check efficiency of the contacts on connector J009 on the PCB;
– Check the motor side connector;
– Check motor winding and check that the impedance value on wiring
connector J009 between pins 3 and 4, 4 and 5, 3 and 5 is less than
100 Ohm; (three phase)
– Check the tacho generator winding and check that the impedance
value on wiring connector J009 between pins 1 and 2 is between 115
and 170 Ohm;
– Check the tacho generator wiring;
– Disconnect appliance for 2 minutes. Check that correct operation has
been restored by starting the Autotest routine;
– Renew motor;
– Renew PCB.Anything and everything is possible. 🙁
Re: Hotpoint Wmf740puk.r
iadom wrote:From the service manual F02 fault.
– Check for water leaks that may affect connector J009 causing the
contacts to short circuit;The very first line in the manual, such a fundamental design error to locate the main board in a place that could be affected by water leaks. Hotpoint, the market leader, design and build such rubbish year in year out ignoring a basic schoolboy rule of electrical conductivity. Placing the main board at the lowest possible point and directly behind the pump – brilliant
Re: Hotpoint Wmf740puk.r
Not the pump Martin which is located at the opposite side or at the front on sealed drums. The leaks onto this pcb are from the dryer condenser assembly directly above.:(
Re: Hotpoint Wmf740puk.r
iadom wrote:The leaks onto this pcb are from the dryer condenser assembly directly above.:(
Oh, a washer-dryer is it? Even better :rolls:
I bet the service manual on the condenser unit makes no mention of covering the PCB prior to dismantling. (Don’t aswer that I don’t wish to know, it’s just me being a tad sardonic 😉 )
Re: Hotpoint Wmf740puk.r
Sorry, my mistake, not a washer dryer. Not sure why they would advise to check for water damage on a WMF base pcb with a sealed drum, the board is well away from the pump?
Bearing leaks only real possibility.
Re: Hotpoint Wmf740puk.r
Just out of curiosity how do you put this machine through the auto test sequence
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