H/Point WF840 – F03 NTC or Module?

[MickGeorge]

Hi folks

Been to this one today and pretty sure its the module but just wanted to pass it by you peps in the know.

Fault is m/c coming up with F03 (which is NTC fault) BUT when it comes up with the fault the machine pumps and fills at the same time and you can only switch off machine at the socket and not the on/off button or cancel program.

Tested for earth faults, NTC and NTC wiring – all seems ok.

Always find testing NTC continuity a bit hit and miss but dosent seem abnormal.

Presume if this was just a normal F03 fault the m/c would just shut down or at the most do a 2min compulsary pump out before shutting down.

The m/c is coming up with this fault even when I tried it on a spin program.

Question – would a NTC fault produce these symptoms?

Thanks – All comments welcomed.

Mick

[Flyman]

Re: H/Point WF840 – F03 NTC or Module?

Think this is a safety feature of the machine. It believes the ntc is faulty so does not know if the water in the drum is boiling hot. It then does the fill and empty deliberately to flush any hot water out of the machine. As to whether it is the ntc faulty or the pcb is just not recognising it i will leave up to you.

[iadom]

Re: H/Point WF840 – F03 NTC or Module?

Sounds very much like a PCB fault, had the exact same problem last week, PCB is now at EMW for repair.

Jim.

[allan73]

Re: H/Point WF840 – F03 NTC or Module?

I always have a spare NTC for these in my toolbox, easy to just plug in and see if it resets the fault code 😉

[squadman]

Re: H/Point WF840 – F03 NTC or Module?

Had this same fault a fair few times, module the culprit, EMW is the way

[Allsorts]

Re: H/Point WF840 – F03 NTC or Module?

Check the cables going to the NTC before changing the pcb

George

[MickGeorge]

Re: H/Point WF840 – F03 NTC or Module?

Thanks for the replies guys.

PCB is chief suspect but just wanted to run past you guys – thanks

Interesting to note your reply Flyman – these m/c gettin to cleaver for their own boots – had sussed the drain bit but not the fill and drain flush cool off :rolls:

Interesting to note you keep a spare in your tool box Allan – do you have much trouble with these NTC’s then? Must admit I have always found Thermisters/NTC’s resonably reliable and think I have only ever had to change 2 faulty ones – one for an earth leakage and the other for low resistance which was fairly obvious on test. Both of those diferent types to the ones fitted to this type of m/c.

Did check the cables going to NTC – even gave connector a pinch incase it was bad connection but thanks for the tip George.

Thanks again for replies

Mick

[allan73]

Re: H/Point WF840 – F03 NTC or Module?

To be honest Mick not really had many problems with the NTC on those, i just find it easy to plug one in off a scrap m/c for peace of mind before ordering the pcb 8) . I tried a NTC off an old WMA on an indesit last week and it reset the fault code nicely but that was one off the separate sensor one’s (had a few of them go down).

[iadom]

Re: H/Point WF840 – F03 NTC or Module?

I also carry a couple of spare NTC’s of both connection types. After you have checked wiring and connections its a simple matter to just plug the spare NTC in to test.

The NTC used on these machines for years now is usually very reliable, hardly ever had one faulty TBH.

[MickGeorge]

Re: H/Point WF840 – F03 NTC or Module?

Hi Folks

Just to say it was a module fault as expected.

EMW to the rescue as usual.

Was a bit of a pig to fit due to the bigger than normal size of this module.

Any one done one of these from underneath the m/c? Just wondered on reflection if it would be easier than struggling to get the module out from the back – they dont make it easy for us repair guys these days.

Thanks for all the help as usual guys

Mick

[iadom]

Re: H/Point WF840 – F03 NTC or Module?

I usually lie the the machine face down with suitable protection.

The only good thing about the sealed drum is that you have more room with the motor being to the right.

[LJDomestics]

Re: H/Point WF840 – F03 NTC or Module?

going to a wil103uk tommorow with same symptoms.
are these boards programmed specifically or will a wf or wt board fit as I have loads.

[iadom]

Re: H/Point WF840 – F03 NTC or Module?

You need the correct board, correctly programmed.

[LJDomestics]

Re: H/Point WF840 – F03 NTC or Module?

luckily I’ve found a wil103 board in the lockup this morning.
will take a Ntc with me

[Author]

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