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Above machine found with module blown and fried slug on board. Had module repaired by EMW but since refitting i have no motor action, eveything else appears ok. Sent board back for retest but no fault found. Any ideas ?
i assume you told Emw you had no motor action
assume you have checked motor windings and tacho
after that all i can think is its the board
Dave
Yes to both. Told emw no motor action, they took it back for retest.
Motor winding test at 7 ohms. tacho about 50 ( can’t remember exact reading now )
I’m stumped as to what else it could be. Guessing it damaged something else when it blew but no idea what ?
Have had linear pressure sensor cause ‘just pumping without motor action’ on spin programs in the past.
Murv…
murv wrote:Do you know if the module has been swapped or is it the original one repaired?
you thinking possible software problem ?
Dave
Possibly Dave,
It is hard enough to work out which settings file is correct for single phase machines. Three phase are a pain as there is a main processor with it’s firmware library talking to a second DSP processor running its own motor driving firmware.
A mismatching DSP version due to a board change can cause no motor action problems (often with no error flagged).
It’s complicated and often impossible (without trial & error) to work out which settings software is designed to run on a particular FW1 & FW2/DSP combination. Then add the variations in motor pulley size, Solenoid, PTC or Hybrid door lock types etc and it gets very confusing.
I usually dump the software settings file from the old module and program a used/new module which has matching FW1 & FW2.
Murv…
looks like an absolute minefield. take you have spent hours on some machines before you learnt how to do it
just back heal them myself. luckily the only slug one i had recently, I changed a diode and the power chip and it was ok
Dave
Just do workshop jobs for the local trade (or whats left of it!) Like fixing BER stuff at component level if within my skill set.
Not too driven by money so quite happy to put hours in for peanuts if I can keep it away from the scrap yard.
Have done hundreds of sealed tank bearing jobs & simple module repairs on rental Merloni/Beko washers & dryers in the last few years.
Murv…
Module repaired was the original one so should be ok but as you say, it is an absolute minefield. Just don’t like being defeated
Do you have machine comercial code + serial number. and codes from the label on the module box?
Murv…
Sorry No. EMW asked at the time but doesn’t seem to have them. This is a newer module i hadn’t seen before in a brown box !!
One of the new ‘windy’ modules. Sorry, I have none of these available to try.
If machine does everything apart from motor action I would check pressure sensor (unlikely), motor and tacho circuit at the module plug. Other than that I can’t think of anything but a module problem.
Murv…
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