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We have 199 questions about mending 'boiler thermostat turned'

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Mend Heating, Home Heating Systems

How can I fix my Worcester 24i RSF combi boiler?

My Worcester Bosch 24i RSF combi boiler periodocally refuses to ignite when the hot water taps are turned on o... [Read more]
Mend Heating, Home Heating Systems

baxi bermuda pw2 back boiler fault?

baxi bermuda pw2 back boiler.. pilot light staying alight but main burner not firing up when thermostat is tur... [Read more]
Mend Heating, Home Heating Systems

How can I fix intermittent heating of hot water on my Feroli Modena 102?

When the hot water tap is turned on, The water heats up and cools down cyclically. Looking at the boiler, the ... [Read more]
Mend Heating, Home Heating Systems

How can I stop Overflow from storage tank?

I have a baxi boiler and I have a small and large storage tank in the loft. The big tank is filling up over th... [Read more]
Mend Heating, Home Heating Systems

Glow worm ultimate 60ff?

The hot water works ok when the thermostat is turned up the boiler starts up until the waters is hot But when ... [Read more]
Mend Heating, Home Heating Systems

Vaillant turbomax VUW/GB282/1E heating fault?

I was called to take a look at this particular model earlier today and whilst waiting for a response from Vail... [Read more]
Mend Heating, Home Heating Systems

Still no heat but how water is fine - worcester 24i junior rsf combiboiler?

Hello - It's regarding the boiler mentioned above. I am getting hot water easily enough but no central heating... [Read more]
Mend Heating, Home Heating Systems

24i Worcester RSF Combi - hot water but no heat!?

Hello - It's regarding the boiler mentioned above. I am getting hot water easily enough but no central heating... [Read more]
Mend Heating, Home Heating Systems

Central Heating comes on with hot water?

I have a Landis and Gyr electronic timer (seems fine) attached to a boiler which provides hot water via a hot ... [Read more]
Mend Heating, Home Heating Systems

Why does the Hawk II Optima keep turning on central heating without request?

I have a Hawk II Optima combi boiler which is around 10yrs old. I've pushed the selector switch to the disable... [Read more]
Mend Heating, Home Heating Systems

Potterton Netaheat 10/16 Electronic cuts out?

My boiler was not used for 2 months. When I turned it back on it fired up and ran for about 1 minute until it ... [Read more]
Mend Heating, Home Heating Systems

Boiler fires up when demand for hot water but doesn't when demand for C/H?

I have a Potterton Netaheat Profile 80e boiler, Honeywell V4073A mid-position valve, Honeywell ST699B programm... [Read more]
Mend Heating, Home Heating Systems

no hot water or c/h?

my boiler wont fire up to heat water or c/h, the pilot light is ok, the thermostat is turned up, the programme... [Read more]
Mend Heating, Home Heating Systems

no hot water or c/h?

my boiler wont fire up to heat water or c/h, the pilot light is ok, the thermostat is turned up, the programme... [Read more]
Mend Heating, Home Heating Systems

how can i fix my heating system?

in an attempt to take the radiator off the wall we broke the opposite end of the thermostat valve,we turned th... [Read more]
Mend Heating, Home Heating Systems

Ravenheat CSI-85 Combi, erratic operation, any ideas?

Boiler now 2 years old. Works fine generally, however it has now started to operate even when the settings sa... [Read more]
Mend Heating, Home Heating Systems

How can I fix my modena 80 e ferroli boiler?

My central heating boiler is not working. I have switched the thermostat on and the boiler is not firing up. T... [Read more]
Mend Heating, Home Heating Systems

Baxi Bermuda boiler not igniting?

My Boiler won't ignite to either heat water for the taps or central heating. The pilot light is on. The thermo... [Read more]
Mend Heating, Home Heating Systems

Worcester 350 Combi Plate heat Exchanger - Is engineers diagnosis correct ?

We have a Worcester 350 Combi and recently when we have been running the hot water the system has been overhea... [Read more]
Mend Heating, Home Heating Systems

How to fix a biasi 24s combination boiler?

Biasi 24 s combi boiler. The problem is the central heating comes on randomly even though the thermostat for h... [Read more]
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