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fcollingwood.
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July 2, 2007 at 7:38 am #28632
fcollingwood
ParticipantHi All
I have one of the above which was doing strange things – at the begining of a wash cycle, would open the water solenoids for a couple of seconds three times, then die and beep. Then it went “bang”, which turned out to be the module fuse, and two of the motor drive mosfets. The fuse and mosfets have been replaced, but the original problem persists.
I have filled the tub manually, but the machine just sits, and does absolutely nothing for about 10 minutes, then the 4th lamp (Just to the left of “Short Wash”) goes on and it starts beeping.
I have put the machine into diagnostic mode, and I get code 136 (10001000)
Can anyone give me any pointers – especialy as to how I can empty the damn thing if I need to get at the motor.
July 2, 2007 at 11:25 pm #219298Penguin45
ParticipantRe: F&P GW701 code 136
Obvious things – lid switch and OOB switch – both suffer from rotten, wet and corroded wiring.
Less obvious things – pulsing inlet valves can be a sign of problems with the valves themselves.
However, problem is most likely to be down by the motor itself. Chaffed, wet and broken wiring round the turn of the drum, under the rotor and into the Repetative Position Switch (RPS) and the Star Point. These components themselves may have failed.
Penguin45.
July 2, 2007 at 11:36 pm #219299fcollingwood
ParticipantRe: F&P GW701 code 136
Ta Penguin
I know the lid switch is OK, one of the things I checked.
What is the OOB switch, and where do I find this beast?
Also, please could you tell me if there is any way to fire up the drain pump in diagnostic mode in order to empty the tub so I can turn the beast on its’ side to get at the motor? Also, any pointers for getting the rotor off would be much appreciated – I looked at the rotor a few days ago, and it didn’t seem to be an easy thing to remove.
I’m guessing it’s going to be a main seal/bearing job, as there was some water on the floor a few weeks ago, however, there’s no sign of leaking from the pump. Should I attempt this job myself (I’m very handy with mechanical and electronic things, seldom need to call the repairman for anything), or will this require special tools?
July 2, 2007 at 11:48 pm #219300Penguin45
ParticipantRe: F&P GW701 code 136
OOB switch is the dangly leg down the side of the drum………
Pump – go into diagnostics. After the beeps, use “Regular Cycle” to turn the drain pump on and off.
Rotor is retained by a single 16mm nut, so should drop off fairly easily. Put it somewhere very clean away from anything metallic.
Due to the depth of the drum, doing the bearings is a real swine. I’ll send you something through.
Penguin45.
July 3, 2007 at 12:11 am #219301fcollingwood
ParticipantRe: F&P GW701 code 136
Ta Muchly!
It’s just struck me – OOB = Out Of Balance. I’ll check this out before trying to do the seal & bearing.
July 3, 2007 at 5:46 am #219302fcollingwood
ParticipantRe: F&P GW701 code 136
Another question, if I may – I go into diagnostics by holding down Temp Down and then pushing and holding Power until the lamps go off and only the low water level and spin lamps are lit – no matter how long I hold the buttons down, it doesn’t beep.
If I then release temp down and power, and push regular cycle, the lamp above the regular cycle button goes on, but nothing else happens.
Am I doing something wrong?
July 3, 2007 at 12:15 pm #219303fcollingwood
ParticipantRe: F&P GW701 code 136
OK, after pulling the thing apart and doing some looking, this is what I have:
1. No sign of water or corrosion in the rotor, stator and pump area.
2. Stator measures 8 ohm phase to star, 16 ohm phase to phase
3. Pump measures 35 ohm
4. When plugged in to mains, pump supply is constantly at line voltage – this is with the pump unplugged though, may have potential, but no current.
5. It cooked two more mosfets tonight, same phase as the original fault (Blue) (I am wearing an earth strap, and the soldering iron is grounded, as is the antistatic mat I’m working on, so I know it’s not ESD)
6. No sign of chaffing or worn insulation anywhere
7. Diagnostics are still giving 10001000 – to put my mind at rest, the leftmost (Long Wash) is the MSB (128), and the rightmost (Spin) is the LSB (1), right?
8. OOB seems OK, is NC, and goes open circuit when pressed.
9. Sometimes while filling, it will pulse the main motor, and be a happy bunny, but most of the time it will fill for a few seconds, then stop, repeat this cycle a few times, then turn off all lights, start flashing the one to the left of short wash and start beeping. the times when it doesn’t fill correctly, it also doesn’t pulse the motor.
10. Going into diagnostic mode, and pressing regular wash does not start the pump, although the lamp does come on.Damn thing is making me tear my hair out.
Thanks to Penguin for the help so far, would not have been able to dismantle the beast without your help.
I may have done something nasty to the eprom though – I recall at some stage last night pressing buttons randomly, and I may have confused the beast. Is there anyway of resetting the module to factory default?
July 5, 2007 at 7:56 am #219304fcollingwood
ParticipantRe: F&P GW701 code 136
Report back:
It turns out there were several faults……
1. Drain pump triac in the module blown.
2. Movers had pushed the drain hose down into the body of the machine, instead of feeding the end up through the hole intended for it, thus making a small hole in it – which leaked drainwater into the loom, where it could not be seen.So, $90 later (Hose & loom assy) + $10 (Mosfets & triac), and the machine is happy and well again. SWMBO (and myself) says thanks very much to Penguin for the help and disassembly advice.
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