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walnut.
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March 8, 2005 at 6:42 pm #8350
walnut
ParticipantI Have a problem with the motor not turning.
The motor is a CESET MCA 61/64. when I took the belt of the motor, the motor turns slightly at first then dies.
The armature looks damaged so I purchased a motor from a seller on ebay.
Although the new motor looks very different The seller assured me that the motor was suitable for the WMA31P but when fitted the new motor does nothing.
I have metered the motor and all seems ok but I noticed that the tacho has a different resistance reading.
Does anybody know if you can fit different motors onto this machine or does it have to be the exact same motor?March 8, 2005 at 6:57 pm #128088Phidom
ParticipantRe: Hotpoint WMA31P motor
These machines usually have the FHP motor so if that’s what the new one is it is probably correct. The difference in tacho resistance should not prevent it from working so I would look for something more fundamental, like worn out brushes. If you can identify which terminals are for brushes and field coil windings it is possible to test the motor using a mains cable and a wire link. The mains cable goes to one brush and one field coil terminal, the wire link joins the remaining brush to the remaining field terminal. Turn on the mains and the motor goes straight to full spin sped.
March 8, 2005 at 7:17 pm #128089clyde
ParticipantRe: Hotpoint WMA31P motor
If the motor is metering out ok then the problem may be with the control board, have a look at it for signs of damage.
please do not connect the motor directly to the mains :zap:
If in doubt call out an engineer – look in repairs@ or call hotpoint direct as you do have 5 year free parts with them.
what was the part no/ price of the motor from ebay?
Clyde 8)
March 8, 2005 at 7:25 pm #128090clivejameson
ParticipantRe: Hotpoint WMA31P motor
…and if you follow that advice then for heavens sake be very careful! Personally if i were to do that i would only do it on a test bench with the motor secured down to something very solid (a one horsepower motor going straight into full speed off raw mains produces an awful lot of torque)…so i personally would never reccommend anyone else doing it!
Far better and much safer to meter the motor with a multimeter…if the circuits are ok then a functional test can be done with the motor reinstalled in the machine.
You commented on the armature being damaged…when brushes wear out they produce a uniform burning or pitting in the commutator which can be easily smoothed with fine emery before brushing clean…maybe thats all thats wrong with the original motor?March 8, 2005 at 9:59 pm #128091Kirk
ParticipantRe: Hotpoint WMA31P motor
Firstly you must not connect the motor to direct mains this a workshop test in a vice and only proves the armature and brushes ok or faulty.
There are two different motors used one has the brushes either side the other are top and bottom.
Did you put the motor plug in correctly as it can fit either way and must be fitted with the wires facing up. If you fitted it wrongly it will have blown the module so no motor action.
You sound very competant with electrics but I feel you need to call in someone to save you money in the long run.
Kirk
March 8, 2005 at 11:10 pm #128092kwatt
KeymasterSod it, moved this to trade tech. as Walnut now has trade access and can still get to this now.
As per Kirk’s post earlier can we watch it in the public forums… live testing… public… hardly a good combination! Half of them struggle to tell you the fault correctly let alone letting them play with electricity, heaven forbid!
K.
March 10, 2005 at 8:46 pm #128093walnut
ParticipantRe: Hotpoint WMA31P motor
The tip about the plug can go fit in both directions seemed to be the key.
Fortunatly the modual doesn’t seem to be damaged and the washer is now working again.
Thank you all very much for your assistance with this problem. -
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