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We have 186 questions about mending 'combi pump hot'

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Mend Heating, Home Heating Systems

How can I repair my Worcester Bosch central heating Combi boiler HF 400?

My Worcester bosch HF400 Combi boiler works with Domestic hot water but when central heating is selected there... [Read more]
Mend Heating, Home Heating Systems

No water in hot water tank?

Hi there, I have a problem... lol I'm afraid I'm going to err on the side of giving too much information... [Read more]
Mend Heating, Home Heating Systems

you may need to do drawings before you answer this one ?

This one will put you to the test…….. I have came across an situation in a pub/restaurant where I have a ... [Read more]
Mend Heating, Home Heating Systems

What could the problem be - Worcester Bosch 280 combi?

I have just found that the boiler will supply hot water, but not heat the radiators. System will light the fl... [Read more]
Mend Heating, Home Heating Systems

vokera compact combi boiler?

I have a vokera combi boiler and it has low hot water presure, the hot water was at a fair presure when we mov... [Read more]
Mend Heating, Home Heating Systems

while running hot water boiler runs hot & cold for the duration tap is on?

tested gas supply 21 mb flow rate 12 ltr removed heat exchanger dhw clear changed both ch &dhw sensors checked... [Read more]
Mend Heating, Home Heating Systems

My Baxi 80 ECO Combi boiler will not reset?

Following the manufacturers fault finding manual everything pointed to the PCB being at fault, this has been r... [Read more]
Mend Heating, Home Heating Systems

how to fix worcester gas combi boiler 28si ii?

we have hot radiators, slightly cooler at bottom but power shower runs hot and cold. We have changed thermosta... [Read more]
Mend Heating, Home Heating Systems

old vaillant?

I have a 13 year old Vaillant combi boiler and the heating works but it's not heating the water, so I have no ... [Read more]
Mend Heating, Home Heating Systems

Combi boiler faults?

I have a Wickes Combi Boiler 102. it has started to keep continuously stopping and starting whilst heating the... [Read more]
Mend Heating, Home Heating Systems

worcester 240 gas boiler repair?

Only when drawing hot water from the boiler it makes a zipping noise,as advised I replaced the pump overrun th... [Read more]
Mend Heating, Home Heating Systems

hoe can i fix my worcester 28i combi boiler?

got hot woter but no hot rads no noz cuming from pump The pressure is good
Mend Heating, Convector Heaters

problem with Sime 105 Super Mk 2?

Hi, I have a problem (again) with my Sime combi boiler. When the burner flame switches off on either heating o... [Read more]
Mend Heating, Convector Heaters

Alpha cb24 boiler no heating but hot water ok?

I have an Alpha CB24 combi boiler. The heating fires up for between 10 seconds and 3 minutes the cuts out keep... [Read more]
Mend Heating, Home Heating Systems

Boiler and Hot water not working properly-easy fix?

Hi, My oil-filled heating system isn't working. I have an external Grant combi-boiler, and suddenly, 3 days b... [Read more]
Mend Heating, Home Heating Systems

My Baxi 100/2 HE boiler fires up for 20 -30 mins the cuts out on lockout?

My Baxi 100/2 HE boiler fires up for 20 -30 mins then cuts out on lockout. It started intermittently, hot wate... [Read more]
Mend Heating, Home Heating Systems

vokera combi boiler hot water but no heating?

when i turn heating on no heating at rads boiler overheats &shuts down pump seems to be working on setting 3 b... [Read more]
Mend Heating, Home Heating Systems

How do you fit an external switch to a Grundfos 15/50 pump?

How do you fit an external switch to control the variable speed on a Grundfos central heating pump fitted to a... [Read more]
Mend Heating, Home Heating Systems

vokera combi boiler?

my boiler keep loosing pressure after 12 hours end it goes fault but when i feel the system up it works agin ... [Read more]
Mend Heating, Home Heating Systems

Worcester 240 - one cold radiator?

Hi, I'd be grateful for your suggestions on the following problem - I's got me stumped! My Worcester 240... [Read more]
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