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A local appliance repair man has looked at my ADP 8242 today and has been unable to diagnose the problem with any certainty.
It fills, starts to wash but after about one minute just stops. The water does not heat, (element and safety stat is ok) but m/c does nothing.
There are no error lights, the thermostat checks out when metered in and out of warm water. He replaced the supressor since it had blown during testing previously. No difference. Since replacing the £150 pcb is the only suggestion he came up with and no guarantees at a fix, can anyone suggest anything we have missed? I am an ex computer engineer so I can use a meter and a soldering iron. Great forum guys! 🙁Re: Diplomat ADP 8242 not completing cycle
Thanks for the quick response, Penguin. I have replaced the supressor, checked the soap dispenser and door switch along with the thermostat, element and safety cut out.
I assume that all that’s left is the pcb or have I missed something else?
Regards
KicklesRe: Diplomat ADP 8242 not completing cycle
After a couple of years ignoring the box next to the sink and using the “Marigolds” I decided to pay the price and buy a new pcb. I noted on a forum (maybe this one) that a company called QER were recommended as low cost alternative. I sent off my pcb for repair and was provided a replacement board with obviously newly soldered components. This has been duly fitted today and I now have 240v to the heater but it still won’t heat the water and complete the cycle!
The heater checks out at 25ohms and the cut out is not o/c.
The neutral from the heater cut out goes off to a pressure switch which has a rubber tube connected to somewhere like the water sump.
Since the pcb is guaranteed and tested I need ideas where to look next.
Help 🙁 🙁Re: Diplomat ADP 8242 not completing cycle
i have used qer on several occasions and there is no guarantee that the pcb they have sent you is working.
Re: Diplomat ADP 8242 not completing cycle
Thanks for the tip. I have contacted QER who are happy to have the board back for testing once I have eliminated other possible problems such as the blockages mentioned in the article about E2 overfill error codes. Indeed both tubes were blocked in the sump and were easily cleared using a pipe (tobacco) cleaner.
With the crap removed from the sump and the black rubber pipes reconnected, I switched on with confidence. Alas, still no heat!
I disconnected the pipe to the pressure switch in the heater circuit and blew down the tube. Click went the switch and the meter showed a good closed circuit.
Question: Is there another switch in the circuit or do I not have enough water in the sump to apply enough pressure? The salt dispenser is ALWAYS full of water and I can not move the selector on the inside of the cabinet so could this be limiting water inflow?
Thanks for a great forum Gents!Re: Diplomat ADP 8242 not completing cycle
Thanks for the tip suedehead1. I worked out the heater circuit and metered for voltage drop across the heater for each programme. Sods law was that programme 3 on the replacement board (which I always use), did not switch but other programmes did. This was confirmed when returned to QER so the diswasher is now working minus “Eco” Prog.3 😆
Without the tip about the level switch blockages and the possible faulty QER repair, I would be back to the “Marigolds”!
Many thanks guys. 😆
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