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I have the ariston heater( 20/1MFS ) and it will give constant d/h hot water, but when on central heating it goes over pressure and trips on the over temp . Do I just have to replace the expansion vessel to cure the problem or is there something else. I know the relief needs replacing because of...

Hi all, the temperature in my boiler keeps going too hot and the temp control dial doesnt seem to make any difference. The boiler appears to be running all the time and it trips out with the red light coming on the front. To get it to come back on I have to press the little reset button inside...

Just checked the pressure vessel at the valve and it is loosing a drop of water so it looks like the vessel needs replacing. A previous post says the boiler has to come off the wall but my book for it says that you only have to remove the box containg the flue switch and the vessel is removed...

Haven't checked that yet, I just ran a full bath earlier and it has kept pressure in the system, I just put the heating on but the pressure in the system will go up to 2 or 3 bar and will seep from the prv. I will try to repressurise the expansion vessel tommorrow and see how it goes. ( If it is...

I tried that the other day and it seemed ok for a while then it just kept loosing pressure even when the heating wasnt on. After 2 or 3 days it keeps pressure if only used for hot water, but as soon as the heating is turned on it looses pressure from the prv again. Should I just try to do the...

Can you post the correct instructions for recharging the expansion vessel for me so I can rule out if it needs replacing. :)

Still loosing pressure, any ideas ? could it be the expansion vessel even though it didnt show any signs of water at the recharge valve.

Got expansion vessel recharged and seems ok

Hi I've got a leak from the safety valve on my ariston combi and the safety valve has just been replaced but the leak continues. The pressure in the system is 1 bar at cold, but goes up to 2.5 or there abouts when in heating mode. This is when it starts dripping from the safety valve. Any ideas...

Could it be the pump thats working intermittently ? or would the pump just not work altogether.

Using the same washing powder we have done for years, and the drain hose appears to be ok. This problem is intermittent but slowly getting worse.

Hi all, I've got a Hoover 1000 spin Softwave washing machine and its started leaving soap bubbles in the washing after its finished a load. The machine appears to fill for the rinse and it appears to empty ok but it just leaves a load of soap bubbles in the washing. does anyone know...

Sorry to take so long to finish this post but I finally got the boiler finished in May. The filling loop was indeed "letting water by" and after replacing it the pressure rise problem was cured. However a slight leak still existed from the top of the secondary heat exchanger. I replaced the...

Thanks Chris, in reply to the question "how long did it take" , if you meant the actual job it took me around 6 hours from start to finish but thats including a 1 hour break to pick up my son and his drum kit from a friends house. If you meant from the start of the problem it was about 4 or 5...

After 4 months of emptying the bucket 3 times a week and adding pressure to the system I decided to do something about the leak. A quick look inside and I spotted a bit of the deviator that takes a clip to hold the flow and return pipes had snapped off . M.T.S. (Ariston UK) provided me...

Well , it was a long wait but the engineer came to look at the boiler on the 2 Nov and only just got round to replacing the faulty part on Wednesday 30th Nov. He replaced the synchronous motor on the 3 way valve and charged 15 quid for that and 120 quid labour.(He was at the house around 3 1/2...

The installation and servicing booklet says to"remove the water unit from the appliance to get at the 3-way valve". The book goes on to say the water unit consists of the circulator, volute(scroll), water deviation body, heating water filter, 3-way valve, by-pass, d.h.w. heat exchanger...

OK, I am a machine tool fitter and have experience with solenoids, actuators, electronics and things like that. Will I need any spare parts or is it a case of taking the three way valve out and cleaning it? Also its right at the back of the boiler and it looks like a big job to get at...

Sorry,very silly of me, the question is , can the diverter be repaired or is it easy to replace. It looks like its electrical from looking in the manual I have for it.

My 13 year old Ariston 20 MFS combi boiler recently has stopped giving hot water when the hot tap is turned on. If I waggle the auto/manual lever on the diverter valve it starts working. It is an intermittent fault but its getting more frequent. Also there appears to be a slight leak when hot...