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Hiyas,
It’s panning out to be a great week for crap jobs. 😕
Fitted a new power board to this machine today, switch on and the tumble dryer fan starts running. No motor action whatsoever. There is no power to the motor. Select a program and it’ll fill with water but that’s it.
Only one word to say on this one. HELP!!!!!!!!! 😛
Anyone come across this before?Thanks in advance
BrianRe: Hotpoint WD71
Original fault was not filling properly, took lid off, switched on and the power board went bang. Luckily for me, customer was there and knows I’d not touched the machine. Went back today with a power board and pressure switch, fitted them, switched on and display came up as usual with select programme. However, the tumble dryer fan kicked in before anything was selected. Tried selecting a programme, machine started to fill but came up with E30 during filling. Motor checks out OK on the meter and still no motor action with a new motor. Checked and found no power going to motor.
Can only think the user board is more than just a selector. have ordered up front board, power board and door interlock. Problem I have is I can’t figure out why it’s kicking in the t/d fan.
BrianRe: Hotpoint WD71
Have you checked the harness from the motor, where it is tied tightly to the cabinet near the motor, this is one place that the harness chafes through in no time at all.
Has it got an FHP or a GDA/Hotpoint motor in it. FHP are usually fairly reliable.
If the power board blew it could have damaged the control module, this has the main microprocessor and several triacs on it.I can let you have a wiring connection diagram if that is of any use to you.
Just spotted something else, if the model is either a WD71S or WD71YS then the control module is a 1602845 not a 1602844 although they may have standardised them since the S/YS models came out.
Re: Hotpoint WD71
Certainly a case of chaffed wiring as Iadom says, the live dryer element feed against the motor possible ❓
Don’t forget, EMW & QER repair those modules (Power and Programme) but post them together 😉
Re: Hotpoint WD71
Went back to it today armed with armfuls of spares. Fitted the new front pcb, dryer no longer runs at switch on. Still no power coming out of the power pcb to the motor. Got another new one out, opened the box and found a piggin gas valve. What on earth am I going to do with a gas valve??? 😳
Have ordered yet another power pcb. Have to see what happens tomorrow.
I’d already checked the wiring harness and no chaffed wires, no shorts either.Brian
Re: Hotpoint WD71
Got a new power board today but the fault still persists.
Machine is a WD71N. New control board, new power board, new pressure switch and new door lock fitted.
No power coming from power board to motor. Anyone any ideas?Thanks
BrianRe: Hotpoint WD71
Does anything work, fill, pump etc ?? All I can think of is a wiring connection fault, possibly in the ribbon cables.
Re: Hotpoint WD71
Everything works apart from the motor. Only one ribbon from the front control to the power pcb and it’s keyed. All the other wiring (I did a rough sketch before changing) is as it was. The problem is, two power boards and nothing coming out of them to the motor. I can accept one board being a duffer but two? It’s driving me nuts this one.
Brian
Re: Hotpoint WD71
I know its a long shot, have checked the continuity of all the wires in the main ribbon cable, I did once have one with an internal break that nearly had me reaching for the bottle.
Re: Hotpoint WD71
Sorry, already been through all that. There’s definitely no feed coming from the power pcb. So, unless Ive got a couple of wires on wrong (P4 and P7 spring to mind) I ain’t got a clue what’s wrong.
I do know that the boards have been changed though, power board no longer has the huge transformer on it and according to the instructions all wiring is still the same.Brian
Re: Hotpoint WD71
no the power pcb’s have changed. they don’t use the big transformer anymore.
Brian
Re: Hotpoint WD71
Hiyas,
Just want to say thanks for all the input and special thanks to Iadom for the circuit diagram. I have to admit to being a divvy, managed to cross 2 wires on the power board, P4 and P7, sorted in seconds once I had the diagram. Now, just got to find the bit of paper with the details of the Daewoo fridge freezer. 😳
Brian
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