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Mend Boiler Cold Hot

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Mend heating engineer day

Programming Honeywell CM921?

Hi: The heating engineer installed this unit during installation of a new boiler. This is a 1 day wireless pro... [Read more]
Mend switches morning boiler

Glow Worm Compact 80E switches on without the tap !?

This morning I heard clicking and went to the boiler and noticed the domestic water heater switches on and off... [Read more]
Mend hot fires up

no hot water evrything fires up?

Hi need help. Iv`e got a sime super90 I fitted a new diverter valve and micro switch about 8 months ago. Ever... [Read more]
Mend combi boiler year water

TRVs not working?

I had a new combi boiler fitted about a year ago but it was only used for hot water but I recently had central... [Read more]
Mend turn worcester boiler

how do i turn down the water temperature on my worcester 24i boiler???

everytime i try to use the shower i either get scalded or i freeze, there is no hot water temp control on the ... [Read more]
Mend hot water ideal

My shower and hot water taps are running cold?

I have an ideal slimline classic boiler and the piolt light is on and it seems to be working. However i have j... [Read more]
Mend boiler hot water

how can i fix my 26cdi boiler no hot water?

hot water comes on goes cold after 2 mins auto air vent opens then closes water heats up then goes cold after ... [Read more]
Mend boiler hot water

how can i fix 26cdi boiler no hot water?

hot water comes on goes cold after 2 mins auot ait vent opens then closes water heats up then goes cold after... [Read more]
Mend hot fires runs

No hot water ?

Boiler, fires up and produces about 1 litre of hot water, then runs cold . Boiler flashes, F14.
Mend help performa boiler

Help with hot water feed on my Potterson Performa 28 boiler?

Hi, We have a strange issue in our house where the hot water is working, but not for every sink in the hous... [Read more]
Mend potterton performa he central heating

Potterton Performa 30 HE Central Heating Sensor?

Hi all, I'm experiencing some intermittent problems with my Potterton Perform 30 HE. If anyone could advise... [Read more]
Mend ferroli boiler hot cold

ferroli f30?

combination boiler ferroli f30 .Hot water suddenly goes cold when we are showering.NTC's replaced.Please help.
Mend Heating, Home Heating Systems

haunting us to despair ?

I have a ravenheat rsf 84et,its been nothing but trouble since i had it fitted,It has a mind of its own, works... [Read more]
Mend water hot boiler worcester 28

how can i get my water hot?

My hot water is running stone cold but my shower is still hot, i have a combi boiler Worcester 28 CDI , any id... [Read more]
Mend water turn taps

No hot water?

I have a PROTHERN 100EC Wall hung combination boiler When we turn on the hot water taps only cold water comes ... [Read more]
Mend boiler board hot cold

boiler?

i bought a new main board for my myson midas boiler it is working but it runs hot then cold if i leave it for ... [Read more]
Mend combi boiler morning

How can I fix my Greenstar CDi condensing combi boiler?

...after nearly 4 years of fault free operation from new, this morning I had no hot water & a "EA" message dis... [Read more]
Mend optimax water hot

Ferroli Optimax not heating water?

I had the hot tap on today and the water suddenly went cold. Now when you turn the hot tap on the boiler is no... [Read more]
Mend boiler hot tap

combi boiler?

This query concerns the hot water to the shower and kitchen mixer tap. I turn on the hot tap and the boiler do... [Read more]
Mend water central boiler

why cant i get any hot water?

recently removed radiator due to diy. since i refitted it ,found i cant get any hot water or central heat copp... [Read more]

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