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We have 628 questions about mending 'boiler heating thermostat'

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Mend Heating, Home Heating Systems

Bosch Greenstar Highflow440/550CDi boiler heating wont come on t error code?

The timer on my new Bosch Worcester Greenstar Highflow 440/550CDi won't seem to work in that my heating won't ... [Read more]
Mend Heating, Home Heating Systems

Ferroli Optimax HE31C Error Code NOcn?

I have a Ferroli Optimax HE31C Boiler and it has been working fine for years but all of a sudden it has fault ... [Read more]
Mend Heating, Home Heating Systems

boiler cycling?

with no call from the heating/hotwater or under floor heating .The boiler continues to cycle.Is the cause.the ... [Read more]
Mend D.I.Y, Plumbing

IDEAL Classic FF250 won't switch on?

I have a IDEAL CLASSIC FF250 central heating boiler that has stopped working - when the ignition switch is put... [Read more]
Mend Heating, Home Heating Systems

Central Heating not come on?

I have a Boss Therm BR1 receiver with a BRTRF wireless thermostat. I believe the thermostat is communicating w... [Read more]
Mend Heating, Home Heating Systems

Remeha Avanta Plus not not activating heating?

I have just moved in to a new property with an Avanta Plus Combi Boiler. It works fine for heating the Hot Wat... [Read more]
Mend Heating, Home Heating Systems

heating?

potterton suprima 50l when I ask for hot water the heating comes on? the boiler ignites and seems fine,tried t... [Read more]
Mend Heating, Home Heating Systems

Icos he15 no hot water?

No fault code, have replaced external thermostat and still no hot water or fault code, boiler just does fire u... [Read more]
Mend Heating, Home Heating Systems

Vokera HE35 has no heating but have hot water, how can I fix this?

Our boiler is not working properly on return from holiday we found we can only get hit water & no heating. I'... [Read more]
Mend Heating, Home Heating Systems

Why has Heat Exchanger on IDEAL ISAR HE24 gone?

So... At the end of 2008 (early December, so about 4.5 years ago). We had central heating installed for the... [Read more]
Mend Heating, Home Heating Systems

Viessmann Vitodens 100 30kw combi?

Help/advice greatly appreciated. The boiler is heating water on demand but not heating rads. I’ve tried rese... [Read more]
Mend Heating, Home Heating Systems

Ravenheat heating thermostat transmitter does not work?

My Vaillant combi boiler provides hot water but the Ravenheat transmitter type thermostat has stopped working ... [Read more]
Mend Heating, Home Heating Systems

RC1 and WR1 thermostat keeps switching to alarm, despite constant resets!?

Hello, I hope someone might be albe to help me. I have noticed that my heating alarm LED keeps coming on a... [Read more]
Mend Heating, Home Heating Systems

Baxi Combi HE heating does not turn off?

My boiler above is only 6 months old but now even when we turn the thermostat right down the heating does not ... [Read more]
Mend Heating, Home Heating Systems

How can I fix my glowworm fuelsaver 2 boiler?

the pilot light is on and the thermostat is turned to number 3 but the boiler does not 'fire' up. the central ... [Read more]
Mend Heating, Home Heating Systems

Worcester Bosch 240 combi boiler, ?

My boiler won't fire up, the pilot light won't come on consequently I don't have any heating or hot water and ... [Read more]
Mend Heating, Home Heating Systems

boss therm bps242rf Thermostat is not switching on my central heating?

After downloading the manual online (2 basic pages) I am none the wiser. Inside the Thermostat back cover are ... [Read more]
Mend Heating, Home Heating Systems

boiler starts and everything is off?

The oil fired boiler runs for a few minutes at intermitted times. The thermostat is at zero and the over rides... [Read more]
Mend Heating, Home Heating Systems

potterton performa 28 boiler?

hi there my boiler fires up constantly once the electric is switched on,cannot control it from the room thermo... [Read more]
Mend D.I.Y, Plumbing

Permanent F5 fault?

I have a Glowworm 18hxi boiler with a Systemate 2000 Gledhill system. Boiler keeps failing with F5 fault. Ha... [Read more]

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