Mend > Home Heating Systems

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How can i fix my ravenheat combi boiler?

i only get hot water when the boiler is on and heating the house.if i have it on hot water only i get cold wat... [Read more]

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hot water?

what componant controls the hot water

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raven heat boiler wont fire ?

hi i have a raven heat boiler ls100t that donsnt fire up i have changed dhw and overheat themostat sensor and ... [Read more]

Digital clock battery DOMI compact F24 B?

If the battery runs flat on the digital clock connected to a Ferroli DOMI compact F 24 B would this prevent th... [Read more]

2

Potterton Mf?

Potterton Mf boiler is not responding to either the programmer or the room stat and stays on all the time heat... [Read more]

servowarm supreme clock/timer making a clicking noise?

my servowarm supreme clock/timer is making a clicking noise ,it appears to be switching the system on and off.... [Read more]

how can i fix my Worcester oil heatslave 15/19 boiler ?

Hi, my oil boiler keeps locking out. When you push lock out reset button it will fire up for between 5-10 mins... [Read more]

ferroli combi?

Where temperature is its just flashing no hot water or heating

change ch & hw at seperate times?

potterton slider for ch and hw how do i change the hot water from the some time as the ch ?

how can i fix my isar he24, there is no hot water?

domestic hot water not reaching full heat, central heating working fine, no visable pipe leaks, pressure ok,

no fire?

i have a rielo burner on a kerr furnace that has no chimmney just the cold air intake and another pipe with t... [Read more]

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pressure lost?

Hi my Greenstar 25si boiler just started to loose pressure over 16 hour period, have checked for any leaks on ... [Read more]

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Hot Water Cut Out?

I have a Worcester greenstar 25/30si when i run the hot water it all works fine, then after about 5 mins the f... [Read more]

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pressure on a potterton 80?

when the boiler is on it loses about 1/2 bar pressure say over 12 hours, when the boiler is switched off manua... [Read more]

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flashing orange light on worcester highflow 400?

On the front of our worcester highflow 400 electronic we have an orange flashing light above the central heati... [Read more]

6

Ravenheat 85T Condensing Combi Boiler?

Boiler is about 5 yrs old. Added extra pipes to heat another room, after bleeding the system through (there wa... [Read more]

2

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]

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no heat in two rooms on second floor ?

how to fix heating problem on second floor? tried bleeding heaters but still have problem with heat

how do i stop a leakage?

had the main pipe (water) repaired..had to drain water from pipe to repair also turned off/drained water that ... [Read more]

vokera 24?

I have been told that the fault is in the vessel. I know i might sound a bit thick, But is that the expansion ... [Read more]