How to mend ... Boiler Thermostat

Boiler firing up when programmer says off, and themo down?

Hey, My programmer (potterton) has been set for my hot water and heating to come on for a few hours each m... [Read more]

Riello 40 Burner problem?

I have a Riello 40 G7 140-169 Code 3745959 Type 459T55 kerosene burner which following an oil fill has started... [Read more]

how to install siemens rdh1orf room thermostat?

I have Siemens RDH1ORF room thermostat to install to my vaillant turbomax VUWGB242/1E BOILER

Potterton Prima F cycling?

I have noticed over the last few weeks that my Potterton boiler is cycling much more frequently than usual. W... [Read more]

how to fix my ravenheat boiler?

Does any one know what the component is on the right hand side on my ravenheat csi 85 (t) its a small green pl... [Read more]

hot water on ferroli optima boiler keeps going hot and cold why ?

my hot water on my boiler keeps going hot and cold . its come to a point that our bath water is only warm when... [Read more]

Halstead Finest Combi Boiler Locking Out?

When a hot tap is turned on and the central heating is not on or on demand, the hot water flows whenever a dem... [Read more]

cannot locate the thermostat reset button?

i have a saunier duval thema f23 combi boiler british gas has fit a new heat exchanger and pump we still get a... [Read more]

Constant receive alarm on Drayton digistat SCR?

I have a Vaillant Ecotec pro combi-boiler (recently serviced) a thermostat in my hall and a Drayton digistat S... [Read more]

glowworm boiler model make ( maj 2476) appliance TYPE (BBU)?

can you advise me on how to fix please. My central heating boiler pilot will light but once the thermostat is... [Read more]

How do i fix my Ocean Alpha 240e?

How do u reset the seperate wall mounted thermostat controller on the Ocean Alpha 240e combi boiler - is ther... [Read more]

Halstead Finest Combi Boiler Locking Out?

When a hot tap is turned on and the central heating is not on or on demand, the hot water flows whenever a dem... [Read more]

How do I program a Danfos RX1 receiver?

I have a Danfoss Electronic programmable room thermostat and am having a failure to connect to the RX1 receive... [Read more]

Central heating Potterton Promax Combi HE boiler has gone down - no heat at?

Hi, can you please advise how I can fix my central heating which has gone off and showing fault E119 low syste... [Read more]

I have a Worcester Greenstar 24Ri that constantly runs?

Why does it keep running? British Gas inspected it and said that it works from a thermostat and if the temper... [Read more]

I have exactly the same ques as below-what wasthe answer?

We have a Bosch/BG RD532 Boiler controlled by a wireless thermostat & it occaisionally (right now!) looses the... [Read more]

How to stop a electric beeping from ferroli boiler?

My ferroli combi boiler is working fine but the main unit has been beeping for the last 2 days. I've changed t... [Read more]

the hot water and the radiators are not hot enough?

The boiler is working well,but only heats up to about 15 degrees making the water and the radiators not hot en... [Read more]

How do you change the DHW thermostat on a boiler?

The boiler in question is a vaillant vcw gb 242e

instructions on how to fit a thermostat?

how to fit a horstmann wireless thermostat to a ferroli optimax he plus 31 c boiler