Hotpoint Ultima FDW80 Fault code displayed AL01

[davyboy212]

Hi all.

I am a Serviceforce Tech & am looking at this for my cousin. The drain pump runs & then it displays “AL01” indicating the flood switch has triggered.

However, there is no moisture or any evidence of prior leak anywhere (tide marks, rusting etc), yet still this fault code is displayed. The flood switch operates correctly & I have checked the wiring for any damaged insulation, checked for continuity & insulation on components (tubular heater etc) & the appliance as a whole yet I have drawn a blank. This machine thinks it has a leak but trust me when I say it doesn’t. Also, it doesn’t have an aquastop inlet hose, just an ordinary fill hose.

Another point is that I did disconnect the flood switch (naughty, I know) & initially it did fill & circulate the water for about 5 minutes but then it started to drain & “AL01” displayed again & this is how it has been since. The flood switch has been reconnected.

Please help!

Many thanks in advance.

[iadom]

Re: Hotpoint Ultima FDW80 Fault code displayed AL01

I have seen the odd wire to the float switch chafing on the base, however the PCB’s are very ticklish on these as well. Not over expensive though, around £25.00 list price ex vat.

Two different ones depending on date code.

Jim.

[davyboy212]

Re: Hotpoint Ultima FDW80 Fault code displayed AL01

Hi Jim.

The wiring to the switch is certainly fine. I was wondering about the board but wanted to find out from other techs more experienced on Hotpoint than me.

Incidently, it was put onto Demo & the fault code came up then too. Just thought I’d mention it in case it gave any further clues.

Cheers.

[iadom]

Re: Hotpoint Ultima FDW80 Fault code displayed AL01

Have you tried a reset, press & hold the Start/Reset button for a few seconds until you get three beeps.

Jim.

[davyboy212]

Re: Hotpoint Ultima FDW80 Fault code displayed AL01

Hi jim

I held the button but i do not hear any beeps.

[iadom]

Re: Hotpoint Ultima FDW80 Fault code displayed AL01

Does the display revert to – – – after you have held the button in for five seconds or more?

Jim.

[davyboy212]

Re: Hotpoint Ultima FDW80 Fault code displayed AL01

no just al01

[iadom]

Re: Hotpoint Ultima FDW80 Fault code displayed AL01

Strange, TBH the only reason I have ever changed PCB’s on these is for no heat faults which is quite common. The fact that the display will not revert to the dashes does suggest a module fault. Perhaps one of the current company engineers who post occasionally may know better.

Jim.

[kiddo66]

Re: Hotpoint Ultima FDW80 Fault code displayed AL01

Like me you mean 😀
I have had one do this and it was the turbidity sensor that was causing the fault,some have them situated in the metering tank in the left hand side,others are situated in the base in the base.
It is possible for them to get water in and short out.HTH

[iadom]

Re: Hotpoint Ultima FDW80 Fault code displayed AL01

Thanks for that, a new one on me. :tup:

Jim.

[TheSpinDoctor]

Re: Hotpoint Ultima FDW80 Fault code displayed AL01

Sorry if this is going to cause any confusion but it was me that started this post. Davyboy212 was my cousins sign in & I didn’t have an account on here when I was looking at the dishwasher in question.

As I said, I am actually a Zanussi/Electrolux Tech so Hotpoint dishwashers aren’t my speciality but you mentioned the turbidity sensor. Do you have a photo of what it looks like? If it looks like what I am thinking, it is in the base on a clear plastic pipe situated above the drain pump & has a direct wiring connection to the float microswitch so this could have some relevance. What would happen if this were disconnected? Would this be recognised as a fault by the board? Is there any way of testing it with my meters or is this not possible? If so, what sort of reading should be found?

Thanks in advance.

[davyboy212]

Re: Hotpoint Ultima FDW80 Fault code displayed AL01

its been switched off for a couple of days, when i switched it on and started a program i got al05, now its gone back to al01

[TheSpinDoctor]

Re: Hotpoint Ultima FDW80 Fault code displayed AL01

Hi Dave.

Anyone know what “AL05” represents?

Bloody dishwashers.

[Martin]

Re: Hotpoint Ultima FDW80 Fault code displayed AL01

TheSpinDoctor wrote:Hi Dave.

Anyone know what “AL05” represents?

Bloody dishwashers.

Are you in the trade?

If so, why not register as a trade member? 💡

[TheSpinDoctor]

Re: Hotpoint Ultima FDW80 Fault code displayed AL01

Hi Martin.

Yes I am in the trade. I am a Serviceforce tech.

At the risk of sounding like a plum, how do I register as a trade member & what does that grant me?

Send me a personal message if you can advise further.

Thanks.

[Author]

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