Bosch WFT2800

Hi Andy thank you for replying,

The old board I repaired twice the usual dry joints on the relays, the PCB was a second hand one so not the silly £300+ only £13 so worth a try the machine it came out of the bearings had gone (a simple job to change done mine twice), the syphon is ok on the tray, the water isn't going in on the first rinse is that the same vale used for the fill? they all seem to do something the yellow one is a bit low pressure if I stick 240v on it! I am 71 a retired electronics engineer and don't like being beat lol!! Thanks again John.

That’s good that you didn’t spend a fortune on a pcb

Most washing machines have a double cold water valve. One side is for the main wash and rinses and the other is for the fabric softener. As the fabric softener’s solenoid is only activated once per cycle and the other multiple times sometimes the main solenoid fails. If wires are long enough you could try swapping the wires over to see if the rinse water comes in.

Alternatively test the solenoids with at least one wire disconnected with a continuity test meter. They should all have the same resistance. It’s very high resistance though.

Hi Andy I took the valve block off connected it to the water supply hose then applied 240v to the two valves which are on the left and both fed from the main water supply the front one the water gushed out into a bowl and the second the yellow one was very low pressure, I swapped the coils over and the result was the same! so should the Yellow one be full pressure? I think the other two valves are for the drier or am I talking a load of rubbish? Thanks John.

Hi Andy the two valves have different plugs :-(

There is one valve that should only produce a trickle of water, although the restriction in pressure is often achieved at the point where its hose connects to the plastic condenser chamber. It’s possible there is a strong flow restricted in the valve. This is the water supply for the drier section. It should be easy to work out which solenoid supplies the drier’s condenser chamber.

Any other solenoids should supply full water pressure to the soap dispenser. One usually supplies the fabric softener as described in my previous reply. If by any chance there are two more they must be for the main fill and rinses and a pre-wash valve.

It’s possible that the valve is faulty inside or bunged up with something. It may need the whole solenoid assembly replacing.

If you swapped over the wires and the last rinse still takes in water that seems to confirm it’s not a problem with power being sent to the valve.

Hi Andy I will try somehow to swap the valves over the two on the right seem to be for the drier one has restricted flow!

I will report back ;-) thanks again John

Hi Andy swapped the valves over all runs through ok I think during the final rinse both valves open to flood the tray to take the Softener? so now to find a 4 way valve that doesn't cost an arm or a leg!

Thanks for the help Andy.

Kind Regards,

John.

The valves come to pieces (unscrew) Andy so swapped the one from the drier side and all works 100%