Whirlpool ADP 4501/5 – Start Light Flashing 11 Times

[Hondabiker]

😕 Hello,

After some unusual cleaning (My better half decided it would be a good idea to clear out the last bits of wax from a candle holder using the dishwasher) the start light started flashing. I cleaned the gunge from the main filter and tried again but the start light is still FLASHING 11 TIMES. I found another post saying that the code was a problem with the OPTICAL WATER SENSOR but gave no further info.

Can you please tell me what is an optical water sensor is.
Where would I find it, is it possible to remove it myself for cleaning (I have previously done simple DIY stuff like washing machine pumps and belts, central heating circuit boards, etc).

Cheers

[gegsy]

Re: Whirlpool ADP 4501/5 – Start Light Flashing 11 Times

Hi
You may have optical or standard.
If you remove the filters and look at the recess in sump, at approx 3 o’clock position you will either see a weird looking round clear protrusion (optical water indicator) or a round honeycombed grill unit (standard water indicator)
The optical can be cleaned easily with a cloth.The standard indicator has to be cleaned with care, preferrably with a toothbrush; being careful not to be too rough as to puncture membrane behind the honeycomb grill.

Greg

[Hondabiker]

Re: Whirlpool ADP 4501/5 – Start Light Flashing 11 Times

:rolls: Hi Greg,

Many thanks for your quick and very helpful response.

I put some hot water in the sump and scrubbed it best I could with a toothbrush. The good news is the light no longer flasher 11 times, the bad news is it now flashes 4.

Should I just try try cleaning it again (may try bending the toothbrush as it was difficult to get in) or is there some other things I need to try.

Cheers
Paul

[gegsy]

Re: Whirlpool ADP 4501/5 – Start Light Flashing 11 Times

Depending on how hard you “scrubbed” you may have damaged the membrane of the water indicator ( I did say be careful). It may be that the wax has solidified and jammed the WI 😕
4 is a no drain fault.
Try a reset holding “start” button down for approx 3 secs and see if fault clears.

Greg

[Author]

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