Just thought I would update you on this. I changed the APS and the NTC sensor after speaking to Vaillant. I cleaned out the plate which had a bit of dirt in it but not excessive. I removed the aqua sensor and it seemed to be ok so left it in. All ok and not had another phone call from him yet...
Worked the whole time. The shower was hit and miss though. No iso valves on it so I couldnt turn cold off to test. Hot pipe going in to shower was scalding though so I put it down to faulty shower.
Yeah its showing demand. It was working fine when I was there. I spoke to the customer today and he said he cant hear fan or pump running or any sparking. Im taking APS Monday aswell as NTC sensor. Also going to clean out plate for good measure. Hate intermittent faults
I contacted Vaillant who said it will either be a blocked plate or the NTC sensor. I can't access status modes as I'm not going back until Monday. I was just after a bit of a heads up as it was fine the other day on the taps, but a bit iffy on the shower. I rang the customer earlier and asked...
I hope I have posted this in the right place. Apologies if I havn't.
Has anyone had intermittant problems with hw on these. I went the other day and it was working fine on arrival. I told him to monitor it and ring me if it started again. I suspected the shower was faulty as the taps seemed...
Has anyone had intermittant problems with hw on these. I went the other day and it was working fine on arrival. I told him to monitor it and ring me if it started again. I suspected the shower was faulty as the taps seemed fine. I was thinking either Air pressure switch or Aqua Sensor, but to be...
Yes it is. I think I have replaced a couple of them in the past. You probably can't remember seeing one because a lot of people take them out and leave them out.
I had one earlier today which wouldn't light ever since it was serviced. The flame sensing lead had been damaged. If not that and the electrode itself isn't damaged, then I would go for the ignition board.
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