Mend > Home Heating Systems

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explain wording on instructions in english ?

what is comfort heat and setback heat

Heatslave 15/19?

boiler is on lockout, i have checked instructions and found a small red button under the front cover, i have p... [Read more]

1

how do i bleed my 50/70 warmflow boiler?

I stupidly let my oil run out and have since got a delivery however my heating isnt working. I can hear it fi... [Read more]

How can I fill system pressure loop?

I have MAIN COMBI 24 HE boiler. When I dont use it, pressure stay in 0 and when I use hot water it goes up to ... [Read more]

sime fomat 80e boiler?

pilot light keeps going out when the hot water and central heating are on toghether , the overflow is always r... [Read more]

m44/54c boiler?

Why does my boiler fire up only when it wants to. And sometimes never at all.

how can i replace a thermostat?

can i change a radiator thermostat without draining down the whole system?

ferrol ff77 heats up rads to worm then clicks on and off every 10 mins?

i did replace fan and air flow switch about 6 years ago they could be wareing out again they are working ok b... [Read more]

How do I use RFTH1 thermostate ?

How can I set RFTH1 to come on twice a day?

1

Sime Format 100 C keeps cutting out and requires small top up before start ?

Sime Format 100 C keeps cutting out and needs small top up to system before re-starting. No leakage apparent a... [Read more]

combi problem?

i have a potterton performa 30 he boiler and the heating comes on when the thermostate is turned off

1

drayton(iflo) wireless +rf rf603?

I have just purchase one of these and have questions answered on DIYNOT site but am interested in the Live, nu... [Read more]

How can I fix my Vaillant VCW combi boiler?

we have hot water but no heating

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no water going in to boiler?

My boiler seemed to working fine until I noticed the pressure dropping. I have since realized that there is no... [Read more]

Loud buzzing on ignition.. Ideal Mexico Floorstanding Boiler?

A friends boiler emits a loud buzzing (sounds electrical) when the boiler is trying to light, sometimes for a ... [Read more]

1

how can i fix my ideal condensing boiler?

hi,my boiler comes on and is not showing any fault codes,when it comes on makes loud banging noises, please he... [Read more]

1

baxi 105e ?

flame failure neon light

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what is the easiest way to clear a blockage from a header tank?

Am trying to drain the system, but the water will not drain from the header tank and therefore the system is s... [Read more]

1

ff77 boiler?

boiler comes on heats up rads to worm only then keeps clicking on and off

How do I alter the clock on Potterton central heating sensor?

How do I alter the clock on a Potterton central heating sensor