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ariston eurocombi AGAIN !!?

thanks to hi-spec plumming advice noted prv changed an thought it was fixed,sadly no.holding pressure now a plumber was called an he said it was the fan,not convinced as he was wantin to use second hand parts he had.someone else said pressure vessell?.i rung ariston tech an they said no way to either an suggested igniter lead or earth/pcb an said it wasnt senseing it was lit.like so many others on this forum it lights for about 5secs an cuts out unless from cold then runs for about 15-20mins "ariston eurocombi sx20mffice" great ay !!!! any help much appreciated.

justin
February 2007

Ariston Heating, Home Heating Systems Ariston Eurocombi Again

laptop plugged in an guess what,PCB !!.thanks for the advice.Justin

Justin
February 2007

thank you paul combi care,its been nearly two weeks now with the boiler running for eleven mins at a time it has me beat so british gas have been called !!

justin
February 2007

Hi there, If you r losing pressure it is one of three things. leak on system, faulty prv or expansion tank. If the pressure on the boiler increases to around 2 half to 3 bar when heating is hot then u have afaulty tank. if not it is one of the others.
If the boiler runs there is no prob. with fan as it would never reach this point if thee was a problem with it.
It sounds like u have a problem with either the HW or Ch thermistor as this is what tells the boiler to run and for how long.apart from that u are looking at the PCB which would be costly

Paul Combi Care
February 2007