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We have 348 questions about mending 'system combi hot'

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Mend Heating, Home Heating Systems

Ferroli Optima 901 -Intermittent Hot water problem?

Hi I have a Ferroli Optima 901 combi boiler and have recently been experiencing intermittent problems with no ... [Read more]
Mend Heating, Home Heating Systems

What can cause my combi system to lose pressure?

I recently had my combi system flushed and for a week it held pressure, and was, as in the past, quiet. Howev... [Read more]
Mend Heating, Home Heating Systems

How can i fix my Worcester Bosch 240 combi boiler?

I recently removed two downstairs radiators to decorate. When I tried to turn the heating system on again it w... [Read more]
Mend Heating, Home Heating Systems

How can I fix my Potterton Puma 80?

My combi boiler has broken down, After lighting the pilot the system fires up and hot water is produced for ab... [Read more]
Mend Heating, Home Heating Systems

Intermittent hot water one SIME combi boiler?

I have a sime combi boiler, sorry, I dont know where to find the model number, but the heating (radiators) are... [Read more]
Mend Heating, Home Heating Systems

I think I have air in my rads?

I have a glow worn ultimate... It is not a combi it is the older type will a tank in a cuboard were it stores ... [Read more]
Mend Heating, Home Heating Systems

How can I fix my Worcester 240 Combi boiler?

When the heating is on I have hot water but if I turn the thermostat down and the heating goes off I have no h... [Read more]
Mend Heating, Home Heating Systems

Valiant Combi Compact Boiler Nightmare?

Hello, can anyone help me please? It's looking like I'm going to have to call out a plumber and I cant afford ... [Read more]
Mend Heating, Home Heating Systems

loss of pressure & cold radiators at the bottom?

We have a Worcester Greenstar R40HE combi boiler. The pressure is dropping on an almost daily basis though we... [Read more]
Mend Heating, Home Heating Systems

how can i fix fer falcon combi that is not firing?

when i turn off and on gas valve, the combi is not firing central heating system water is coming out hot but n... [Read more]
Mend Heating, Home Heating Systems

My CH boiler keeps blowing out when its windy outside!?

Hi, I hope someone can help me with this one. I have an old Baxi Wm 381 RS CH boiler in a house we just moved ... [Read more]
Mend Heating, Home Heating Systems

How can i change the valve in my Vokera Excell 80SP combi-boiler?

I have a Vokera Excell 80SP combi-boiler in my house. We have it serviced every 6months and about the time we ... [Read more]
Mend Heating, Home Heating Systems

baxi combi instant 105e?

i have recently turned my heating on for the winter it worked initially then stopped on low pressure found pre... [Read more]
Mend Heating, Home Heating Systems

no flow from combi boiler to radiators?

Baxi Genesis 80 - hot water ok but all radiators cold. When CH is switched on, the system fires up and the... [Read more]
Mend Heating, Home Heating Systems

vaillant gb221h combi?

Domestic hot water fine. When heating calls for heat, the divertor valve plunger pulls in to the valve very sl... [Read more]
Mend Heating, Home Heating Systems

How can I fix my SIME Friendly Format 80E Combi?

The situation is this: No hot water, no on light! When hot tap is opened there no flame, no fan and the pre... [Read more]
Mend Heating, Home Heating Systems

I have valliant turbomax vuw242/1e 282/1e combi boiler,heating works fine?

hot water works ok when the heating is on all the time but when i turn the switch over to the hot water only i... [Read more]
Mend Heating, Home Heating Systems

My Vokera combi boiler will not ignite?

Can anyone help me: My Vokera Mynute 14e Combi will not egnite when I switch on rads or hot water. I have foun... [Read more]
Mend Heating, Home Heating Systems

The hot water from my Worcester 240 combi is not as hot as it should be?

The hot water from my Worcester 240 is not as hot as it use to be.Central heating is ok and when heating is on... [Read more]
Mend Heating, Home Heating Systems

how do i bleed my central heating combi boiler and radiators?

i drained my system then refilled it ,the radiators upstairs are hot but downstairs they are cold. have i mis... [Read more]
Pages 54321

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