Hotpoint LFT 228 A Dishwasher – dead

[sandomenico]

Could someone help with this one please?
Hotpoint LFT 228 A Dishwasher, been working fine. Yesterday the door wouldn’t stay shut. This has happened before, and as before I took the top panel off to access the lock, messed about with it then put it back on. Now the door stays shut but the power button won’t turn the sodding machine on, as if the thing is unplugged from the mains.
I dissconnected the plugs to the control board when I was fiddling with the lock, after marking their postion so I couldn’t put them back on wrong.
I’ve checked the socket has power and the plug fuse is ok.
What next? Help!

[electrofix]

my first job is always to check the on off switch is closing with a multi meter

Dave

[electrofix]

dont know
open the box and try switch with multi meter

Dave

[andyjawa]

Could still be the door latch mechanism* u/s as the micro switch can fail which was fairly common rather than the user pcb** that you also had a look at (btw make sure that 2 white wire connector is pushed on right looks a bit on an angle). When I was working I did have that pcb fail but only on 1 machine from memory. So long as the door loom is ok – have had broken wires before on these things – could even be the main pcb. If you do find it is the MAIN PCB*** (really called the module pcb) then do not order it as it has to be programmed on site via lap top programme via Hotpoint otherwise your machine still will not work and be severely out of pocket. Could also be the mains suppessor filter although that failing is not overly common.
* If so watch your part order as there are 2 (might be more?) which do not interchange but pretty sure yours` is this one via your photo: C00274116 (about 13 quid) every part is all based on the machine`s industrial code a long row of numbers beginning with either 36 or 37 as well as your model number LFT 228 A.
** user pcb (the pcb as per your photo) a typical Hotpoint finger burning £154 apparently
*** module pcb a God forsaken £175.99 fleecing and there are 2 possible boards.
So your machine should be under a 10 years part warranty. If you can get it going for the price of the micro switch door mech do that, if you prove that the loom is ok then if either of those pcb are still suspect it works out cheaper to call out Hotpoint based on the pcb part cost which your warranty covers but the labour isn`t.
Best of luck.

[sandomenico]

Hi again,
Firstly many thanks for your concise reply!
I’ve had the multimeter testing what I can. The door latch micro switch is working ok. But there seems to be no voltage going to the latch plug or the plugs that go into the board; that can’t be right can it? It’s as if it’s not plugged in at the mains.
I don’t hold out much hope for any Hotpoint warranty as the machine was in my new house when I moved in nearly 3 years ago, would any warranty pass to the new owner?
What else could I try with the meter maybe? Surely there should be some voltage in the loom?
Thanks again for you advice.

[electrofix]

any voltage you get will only be 5 or 12v DC on some machines

if the wires are very thin its likley to be low voltage

Also its a common problem for wires to break as the leave the bottom of the door

Dave

[iadom]

That machine is at least 14 years old. It was first manufactured in 2008.;)

[Author]

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