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Need a little help from you guys please. My fdyf 2100 hotpoint dishwasher is showing an A5 fault. It happens a few minutes after you start a wash program. I can hear something start, sounds like a pump but without the sound of moving water, then the A5. Thanks.

or ball valve stuck up?

Yes, I've known lots who've done it themselves. You first need to find out if it's a diverter valve problem or a scaled heat ex. You can do this by closing the very left hand service valve to the boiler and running your hot tap. If the water works ok then it's a diverter valve problem if not...

Sounds like 2 problems, a scaled dhw heat exchanger would give the hot water problems and radiator problems. Because the primary water can't circulate through it it is forced to the radiators. The diverter valve not moving completely would give the same results, easy fix for an engineer. Your...

Something no-one seems to have asked yet but have you recently replaced the pump or diverter valve (if you have one) Is this radiator the furthest away from your airing cupboard?

Normally I'd be posting in the plumber forums helping people with their boiler probs, never thought I'd be asking for help!! Smeg dwf 612b dishwasher that has an intermittent fault. Sometimes it completes the cycle no probs, other times it stops partway through and the right hand set of leds...

He owns a scaffolding company............I get free scaffolding. I actually do come out on the better side of the deal!

got to replace a m/s and membrane on one of these tomorrow for a mate (otherwise I wouldn't go near) Anyone done this before? Could do with a quick how to before i attempt it.

When you say it locks out, does the red light come on or does the green power light start to flash quickly?

pipe connections and flue position are exactly the same for the 28 as the 24. The 28 is a wider boiler though.

are you measuring dhw temp at an outlet or at the boiler? Mixer shower introducing cold into the dhw could be the prob.

Viessmann use both their own engineers and local trained engineers. I've known them get there same day (if called first thing). If the visiting engineer hasn't got the part on his van Viessmann will post the part out on a next day delivery. The good thing is the part is posted to you, the...

are you having to top up the pressure each time?

easily replaced.

the vaillant is wall mounted so the weight of water it can hold in store has to be limited. It will look like a washing machine hanging on the wall. The viessmann is floor mounted so has a bigger store. They do a 222w which is wall mounted but it's only on the continent so far. Personally I...

auto air vent on top of the pump.

Providing you haven't got a roomstat installed the easiest way is to join the 2 black wires of the integral timer and use the loop on the incoming mains terminal strip as your common and switched live from your proposed timer..

if your certain the air pressure switch is working correctly then it'll be the ignition pcb.

I know how you do it.............i'm just curious to whether he did it or just guessed his way through a fault finder by assumption. tit.

common problem yes. can i ask how you got the fault finding result?