How to mend Boiler

why aren't my radiators getting hot on my ferroli optimax he31?

Hi my boiler is switched on and the radiator icon is indicating that the radiators are on but they are not get... [Read more]

Heating won't go off?

Hello can someone please help me? I have a Siemens RDJ10RF unit configured to a Baxi boiler. The timer isn't ... [Read more]

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Ferroli Boiler Optimax HE 31C?

Flashing F21 what does this mean and can I fix it without having to call an engineer?

Diverter valve actuator keeps cycling up and down?

The diverter valve actuator sometimes keeps cycling up and down in my Potterton boiler. Anyone else noticed an... [Read more]

How do I change temperature settings?

My temperature has been showing 25%, I tried to lower this to 21% but it now shows 27%. Is there an easy way t... [Read more]

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Problem with my CM 921?

My CM921 has ben set to come on twice a day 7.00am to 9.00am and 5.00pm to 9.00pm. 17. degrees lowest and 20 d... [Read more]

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Horstmann channel plus. The water is on all the time?

Even though the program shows three distinct periods throughout the day, the light stays on permanently and th... [Read more]

Vulcan continental deluxe?

Boiler has been off for about 18months. I cannot light the pilot light manually. There is 240 volts at the ter... [Read more]

Myson Orion 75Si not firing up?

My boiler is not firing up, local contractor yesterday fixed a stuck fan which he said would prevent ignition,... [Read more]

Mira 415 shower runs hot and cold whilst in use?

Hi, my Mira 415 shower runs hot and cold whilst in use. I have replaced the cartridge thinking this was the i... [Read more]

2

Heating not working?

My heating not working but I have hot water on a potterton mk2 10/16 also were is the diverted located I have ... [Read more]

1

How can I fix my fertility boiler ?

My boiler.keeps flashing f5 and p1 and won't fire up so we have no hot water or heating

RDH10RF, thermostat not turning radiators on?

I've got a Worcester 28CDi boiler & Siemens RDH10RF thermostat. The batteries in thermostat died so i changed ... [Read more]

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how can i fix my baxi 105HE?

my boiler water pressure keeps on goin up to nearly 3bar and expelling alot of water outside.CH works when i ... [Read more]

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Why does my boiler remain ON - even when switch is moved to OFF?

I have a Ariston Micro Genus 24 HE boiler. Recently it gave me a ERROR A)1. I replaced the PCB and the error w... [Read more]

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How can I stop my Worcester 24i from building up too much pressure ?

My Worcester 24i combi boiler has just started to build up pressure beyond the blow off valve setting (IE. in ... [Read more]

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Have an eco plus 624 boiler showing fault 22?

How can I fix it, it is showing low pressure 0.2

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my vaillant boiler is saying a code com on it ?

what do I do when your boiler says com on it an no heating or hot water

how can i fix my vaillant boiler its flashing F 22 then bar 0.4 . my house ?

My vaillant boiler is flashing F22 and bar 0.4 I've got no heating and no hot water can any one help me pls . ... [Read more]

Air in system?

Hi all, I've got a glow worm fuelsaver 45f that I think may air trapped in it. Its a pretty standard open sy... [Read more]