How to mend ... Boiler Heating Demand

Siemens RDH 10 RF Thermostat not triggering heating?

I have Siemens RDH 10 RF Thermostat and a Worcester Bosch Greenstar 30CDi combi boiler. The battery in the th... [Read more]

Boiler heating above the programmed set back temperature ?

I have a boss therm wireless thermostat used all the advice regarding communication issues with this system ho... [Read more]

Baxi 105e?

I have a Baxi 105e boiler, it has started to heat the radiators when the hot water tap is run. I've replaced t... [Read more]

Baxi 105e?

I have a Baxi 105e boiler, it has started to heat the radiators when the hot water tap is run. I've replaced t... [Read more]

Glowworm cx30i gas boiler?

My boiler comes on intermittently when the thermostat is turned down below zero degrees. It is all running fi... [Read more]

Remaha boiler runs spuriously?

Remaha Avanta boiler runs for about one minute even though no hot water is being run and no demand for central... [Read more]

Remaha Avanta fires up spuriously when no demand for water or heat,?

Boiler fires up for about one minute when there is no demand for hot water or heating. Cold water is not runni... [Read more]

Sabre HE 3 second blinking green then flashing red when on?

Hello. My Sabre HE stopped working this morning after working fine. I have done lots of searches and tried t... [Read more]

Glow worm Flexicom SX18?

The water pressure keeps dropping after the boiler is demanded ie hot water and central heating, but is stead... [Read more]

Intermittent boilet fails to fire on heating?

I have a 5 year old Glow-worm CX35i controlled by Drayton Digistat SCR and analogue timer (on the panel). The... [Read more]

boiler leaking?

Why is my boiler leaking water through pressure relief valve when I demand heating

why is the red light on my sanuie dauval boiler comeing when no demand ?

why is my sanuie dauvel boiler red light flashing when no demand for hot water or central heating is being cal... [Read more]

Ferroli Modena 80E constantly running?

Hi Guys Bit of an odd one - my Ferroli Modena 80E boiler just started running last week of its own accord. ... [Read more]

Ferroli Modena 80E cycling on and off?

Hi Guys Bit of an odd one - my Ferroli Modena 80E boiler just started running last week of its own accord. ... [Read more]

Ferroli F30 fault?

Ferroli F30 in Heating and Hot Water mode runs for approx. 5 seconds then cuts out. The boiler doesn't display... [Read more]

My Vaillant VCW GB 280 H combi-boiler, pump keeps running ?

The pump on my Vaillant some times keeps running after the heating and hot water demand have switched off? Th... [Read more]

Grundfos Pump Plan wiring Centre part 96437234?

Grundfos pump Plan wiring centre fault boiler on constant demand. Heating Engineer informs me that it is a fau... [Read more]

Boiler Vaillant 824e turbomax ?

central heating has stopped working. it was connected with wireless thermostat, intially i thought something i... [Read more]

home heating?

hi my Halstead hero 60 when the time clock /thermostat call for heat the Boiler fires up, but when it cuts out... [Read more]