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We have 283 questions about mending 'heating water ch'

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Mend Heating, Home Heating Systems

lost manual F22 and F25 codes?

Hi, can anyone help? New boiler working fine on the hot water side ..now have tried to put on CH..fine for x2... [Read more]
Mend D.I.Y, Plumbing

radiators not getting hot?

we have a vokera compact boiler and have had british gas out recently as we have a warrranty out with them but... [Read more]
Mend Heating, Home Heating Systems

vaillant ecomax 824e flashing e20,e13,f20. How to fix it?

Thing is, that my boiler (which is vaillant ecomax824e) use to go through these codes e20 and then f 20, or e1... [Read more]
Mend Heating, Home Heating Systems

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 Heating, Home Heating Systems

Heating/Hot Water Problems with Ravenheat RSF100ET?

Hi Original problem was not very hot DHW, but burner running flat out. Changed both DHW and CH thermistors, ... [Read more]
Mend Heating, Home Heating Systems

CH is ON in the off position and will not turn off?

I have a Halstead Finest Combi boiler, which the CH automatically came on at night and unable to switch it off... [Read more]
Mend Heating, Home Heating Systems

Halstead ace high boiler, ch not working?

my central heating is not working but the hot water is fine, think it may be the diverter valve but not sure
Mend Heating, Home Heating Systems

No heating, but Hot Water works fine Vaillant VuW 242 failure: F.28 ?

In my case F.28 comes ONLY if heating needs to start. If I open the hot water tap during CH ignition attempt,... [Read more]
Mend Heating, Home Heating Systems

ace high boiler problem?

replaced diaphram and diverter valve service kit , ch working ok , in dhw only mode both central he... [Read more]
Mend Heating, Home Heating Systems

centrel heating boiler problem?

when hot water is not in use and ch switch is on minimum the disply panel shows c instead of o and the pump ke... [Read more]
Mend Heating, Home Heating Systems

Ravenheat CSI 85A fires up then goes out on CH?

Help, I have a CSI 85A which when you call for central heating fires up for around 6 seconds then goes out the... [Read more]
Mend Heating, Home Heating Systems

how to check the pump on a worcester 28si boiler?

i want to know if the pumps going on my boiler. the ch is still working and hot water still working but wont w... [Read more]
Mend Heating, Home Heating Systems

RAVENHEAT ls100t - warm water only, heating ok?

Hello, I'm hoping someone may be able to help. My combi boiler was fitted around 6 years ago, and after two ... [Read more]
Mend Heating, Home Heating Systems

Pressure reducing on my Bosch Worcester 24 CDi Combi Boiler?

A few months ago i had problems on my boiler with 'rising' pressure. This turned out to be the Heat Exchanger ... [Read more]
Mend Heating, Home Heating Systems

baxi combi 80e?

always had to reset boiler for flame failure regularly but now no ch! rads get warm when taps are on & no prob... [Read more]
Mend Heating, Home Heating Systems

Why can we only get heating when hot water on also now(Dual programer)?

We recently needed to replace head valve due to pump over run problem.(Boiler is Potterton Profile) On putting... [Read more]
Mend Heating, Home Heating Systems

Hot Water Problem with Ideal Isar He24 Combi?

Hi, Can anyone help? A friend of mine is having problems with her hot water supply from her Ideal Isar He2... [Read more]
Mend Heating, Home Heating Systems

Alpha combie -no hot water but CH OK?

we have a alpha CB24X Central heating is OK but no hot water - warm at first then cold ?
Mend D.I.Y, Plumbing

Sime super 90 plus problems?

Hi, We have a super Sime 90 plus boiler and about a year ago we had to change the dreaded diaphram in the dive... [Read more]
Mend Heating, Home Heating Systems

Vaillant Turbomax 828 problem?

This is a strage one! I am not sure whether my diverter valve is on the way out or whether something else is c... [Read more]
Pages 12111098

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