Hi all,
right, its a bit long winded, but here goes!
Washer stopped working...
I've been told that at first the drum wouldn't spin. after a couple of goes there was a bang.
I found a blown track on the pcb. From a service manual it is one of the 3 that go to the door interlock.
I repaired the board, and have checked continuity around the repair. Have replaced door interlock with a new one. (although it does look a little different to the original)
Have checked wiring for continuity from edge connector on pcb to door interlock connector, all ok.
Problem with the washing machine is that the door locked light keeps flashing when trying to start a program.
Motor brushes were checked and were fairly worn with approx 10mm length remaining. Have been replaced with new ones. Have tested armature from edge connector, got 5 ohms.
Field winding checked 1.3 ohms, split field 0.5 ohms.
Tacho generator apparently is meant to be about 135 ohms, I got 193.
I tried to run through the auto test procedure, this failed, giving the code indicating the door lock circuit faulty.
I then tried the manual test sequence, all I could get to operate was the heater relay.
I presume this is because the door will not lock, so it won't fill machine with water or spin etc.
I think I should try to test if there is voltage at the door interlock when I try to start a program?
Unsure what to try next, I'm guessing its either another faulty door interlock, or time to replace the pcb? (don't really want to replace something I can't be sure is faulty...)
any help appreciated!
cheers
Mike
right, its a bit long winded, but here goes!
Washer stopped working...
I've been told that at first the drum wouldn't spin. after a couple of goes there was a bang.
I found a blown track on the pcb. From a service manual it is one of the 3 that go to the door interlock.
I repaired the board, and have checked continuity around the repair. Have replaced door interlock with a new one. (although it does look a little different to the original)
Have checked wiring for continuity from edge connector on pcb to door interlock connector, all ok.
Problem with the washing machine is that the door locked light keeps flashing when trying to start a program.
Motor brushes were checked and were fairly worn with approx 10mm length remaining. Have been replaced with new ones. Have tested armature from edge connector, got 5 ohms.
Field winding checked 1.3 ohms, split field 0.5 ohms.
Tacho generator apparently is meant to be about 135 ohms, I got 193.
I tried to run through the auto test procedure, this failed, giving the code indicating the door lock circuit faulty.
I then tried the manual test sequence, all I could get to operate was the heater relay.
I presume this is because the door will not lock, so it won't fill machine with water or spin etc.
I think I should try to test if there is voltage at the door interlock when I try to start a program?
Unsure what to try next, I'm guessing its either another faulty door interlock, or time to replace the pcb? (don't really want to replace something I can't be sure is faulty...)
any help appreciated!
cheers
Mike
