Hi Guys, looking for help with my Ariston Eurocombi.
I moved into this house a few months back and being a bit of a knob never tested the boiler. It seems that the boiler is about ten years old.
It does the cycling thing, i.e. runs 14 seconds, temp needle hits about 90’c then cuts out for about the same time until the needle drops to 60 ‘c then fires up again. Does the same on hot water, so need a kettle to top up the bath water.
Had a pro in to replace the main heat exchanger as it meant diving into the combustion chamber, it was a nightmare to get the combustion chamber cover off, probably nevery having been off before in it’s life. Is now better, runs for 20 minutes good as gold, initially cutting in and out of low flame but running constantly. Once up to temp starts the cycling thing again but runs for about 40 seconds. The pump changes tone before the flame cuts, the temp needle rises quite quickly between 60 and 90. It looks like it should be cutting down to low flame but does not. Its probably been doing this for years so the temp switches and pcb relays are possibly damaged.
Any ideas? Is there a way of checking pump flow?
The h/e had a fair bit of black sludge so I’m guessing the rads will be quite bad. I did run some Wicks central heating flush through the system for a couple of weeks before flushing, the water came out quite brown but no sign of any black, didn’t make any difference to the cycling on and off.
Is there a recommended jollop I can use or should I try the wicks stuff several times.
Many thanks for any help.
I moved into this house a few months back and being a bit of a knob never tested the boiler. It seems that the boiler is about ten years old.
It does the cycling thing, i.e. runs 14 seconds, temp needle hits about 90’c then cuts out for about the same time until the needle drops to 60 ‘c then fires up again. Does the same on hot water, so need a kettle to top up the bath water.
Had a pro in to replace the main heat exchanger as it meant diving into the combustion chamber, it was a nightmare to get the combustion chamber cover off, probably nevery having been off before in it’s life. Is now better, runs for 20 minutes good as gold, initially cutting in and out of low flame but running constantly. Once up to temp starts the cycling thing again but runs for about 40 seconds. The pump changes tone before the flame cuts, the temp needle rises quite quickly between 60 and 90. It looks like it should be cutting down to low flame but does not. Its probably been doing this for years so the temp switches and pcb relays are possibly damaged.
Any ideas? Is there a way of checking pump flow?
The h/e had a fair bit of black sludge so I’m guessing the rads will be quite bad. I did run some Wicks central heating flush through the system for a couple of weeks before flushing, the water came out quite brown but no sign of any black, didn’t make any difference to the cycling on and off.
Is there a recommended jollop I can use or should I try the wicks stuff several times.
Many thanks for any help.
