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We have 89 questions about mending 'light boiler high'

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Mend Heating, Home Heating Systems

How can i fix my Halstead Ace High combi boiler?

I have power to the boiler, the green power light is on, when i turn the heating, hot water or both on, the bo... [Read more]
Mend Heating, Home Heating Systems

Halstead Ace High Boiler - Burner on light goes red when trying to run hot ?

I would be hugely grateful if someone out there could help me with this. The CH function of the boiler is ... [Read more]
Mend Heating, Home Heating Systems

halstead ace high problem?

Hi, I have a problem with my hot water and heating. The Halstead Ace High boiler does not come on when a deman... [Read more]
Mend Heating, Home Heating Systems

Halstead Ace High boiler: no heating and no hot water!?

I have no heating and no hot water. I have checked the pressure and it is on 2. I have turned the boiler off... [Read more]
Mend Heating, Home Heating Systems

how can I fix my ferroli domino lpg combi?

boiler not firing up and green light flashes, trys to fire again and again. Then fires high flame then seems ... [Read more]
Mend Heating, Home Heating Systems

Vokera boiler pressure too high?

For the last couple of weeks boiler pressure has been going up to 3, then coming down, but going to zero when ... [Read more]
Mend Heating, Home Heating Systems

How can I fix my Potterton Netaheat 10-16?

Any ideas what's wrong with my boiler? It was working fine this morning but this evening there is nothing. The... [Read more]
Mend Heating, Home Heating Systems

ravenheat combi boiler?

my combi boiler comes on and after 1 hour or so the high low warning light comes on
Mend Heating, Home Heating Systems

pilot light will not stay on Thorn Apollo 15/30b?

Thern Apollo 15/30b boiler Have replaced the pilot burner, have replaced the thermocouple and shorted out the... [Read more]
Mend Heating, Home Heating Systems

Halstead Ace High Boing firing but then turning off?

Hi My mums boiler is showing 0 on the pressure gauge. I reset it, it fires up, there is flame than it sh... [Read more]
Mend Heating, Home Heating Systems

Thorn Apollo 15/30B?

The problem is the boiler has gone out. When I tried to re-light it i have done the following as advised by t... [Read more]
Mend Heating, Home Heating Systems

Pilot light Worcester bosch 240?

It seems pilet light in my boiler blown out in high wind can you tell me how to relight it.
Mend Heating, Home Heating Systems

Constant blue light?

Do gas boliers always have a blue light, even when the heating and water are off? Mine goes and am just wonde... [Read more]
Mend Heating, Home Heating Systems

boiler pressure to high?

hi, my biasi combi boiler is making a noise and leaks from outside pipe, pressure is 4.0 almost and i have hot... [Read more]
Mend Heating, Home Heating Systems

do i need a replacement boiler?

i have a myson apollo boiler which is 18 yrs old, and i have just had a pressurised cylinder fitted, as well a... [Read more]
Mend Heating, Home Heating Systems

How can I solve the problem with my Ace high Halstead Boiler?

My Ace High Boiler the green light comes on when I have it set to hot water I run the tap the Boiler fires up ... [Read more]
Mend Heating, Home Heating Systems

How can I stop my Ravenheat CSI 85B tripping out?

I had a new Ravenheat CSI 85 B T installed today. It worked for the plumbers who installed it - they left and ... [Read more]
Mend Heating, Home Heating Systems

main burner on apollo 65/50 b won't ignite?

can anyone help...a new thermocouple and cap have recently been replaced in the apollo 65/50b boiler we have. ... [Read more]
Mend Heating, Home Heating Systems

baxi boiler?

we have a baxi combi instant boiler which keeps turning itself off,can be on for 20 minutes or several hours b... [Read more]
Mend Heating, Oil Filled Radiators

no hot water from halstead ace high 47-333-16 HW/CH boiler?

i am unable to get the hot water to work but i do have working central heating. The boiler seems to fire up b... [Read more]
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