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We have 247 questions about mending 'heatslave'

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Mend Heating, Home Heating Systems

Fix my Worcester Heatslave 20/25 oil boiler?

Worcester Heatslave 20/25 boiler 10 years old - over heating the domestic hot water, dangerously hot despite a... [Read more]
Mend Heating, Home Heating Systems

How do I fix my Worcester Heatslave 20/25 combi?

If I run the hot water for a few minutes the temp drops to about 20 degrees, I've turned up the dhw thermostat... [Read more]
Mend Heating, Home Heating Systems

where is it ?

Where is the re set button on my Worcester Greenstar Heatslave boiler??
Mend Heating, Oil Filled Radiators

Worcester Oil heatslave 20/25 rads coming on when selected off position?

I have a Worcester Oil heatslave 20/25. Have selected heating to off position & water to on position as norma... [Read more]
Mend Heating, Home Heating Systems

Heating Problrm?

Hi,I have a heatslave 20/25 Combi boiler,Diverter valve was changed as went faulty. since then have no heatin... [Read more]
Mend Heating, Home Heating Systems

Worcester Heatslave Oil Boiler?

Boiler light is on,water pump runs but boiler will not initiate firing sequence when either hot water or heati... [Read more]
Mend Heating, Home Heating Systems

i have an heatslave 20/25 oil combi?

our heatslave 20/25 oil combi boiler seem to start but we are getting no hot water and no heating. i have pr... [Read more]
Mend Heating, Home Heating Systems

worcester heatslave 9.24?

my boiler will not stay lit .the pilot light willnot stay on. i,ve replaced the thermocouple.
Mend Heating, Home Heating Systems

replace water tank heatslave 20/25 boiler? its leaking?

Is it possible to replace the water tank? I have limited side access' so is it possible to pull out from front... [Read more]
Mend Heating, Home Heating Systems

Worcester heatslave 15/19 Hot water not working?

My raidiators and hot water are not working either. If I turn the hot water on I can hear the flow switch clic... [Read more]
Mend Heating, Home Heating Systems

How can I fix my Worcester Heatslave 12/14 Combi?

Woke up this morning with hot radiators but there is no hot water coming from any of the taps. When asking th... [Read more]
Mend Heating, Home Heating Systems

worcester heatslave sparking running on?

Hi my Worcester Heatslave 20/25 burner cuts in & out. The motor runs OK, the start sequence is OK in that moto... [Read more]
Mend Heating, Home Heating Systems

Replace bath tap inner valve, combi boiler? Worcester heatslave 12/14?

Hi, I want to replace a loose tap inner valve, Can I turn off main water supply to house with a combi boiler? ... [Read more]
Mend Heating, Oil Filled Radiators

Do i need to bleed fuel pump on a heatslave 26/32?

I recently ran out of fuel, on a heatslave 26/32, after refilling, i bled fuel back to the pump, but the burne... [Read more]
Mend Heating, Home Heating Systems

How do i bleed my oil burner?

I have a worcester heatslave 25/32 oil burner that ran out of oil can anyone please tell me where the bleed va... [Read more]
Mend Heating, Home Heating Systems

Worcester heatslave 20/25 leak from valve?

Hello! A complete novice when it comes to boilers, so bare with me! I've got a Worcester heatslave 20/25 and t... [Read more]
Mend Heating, Home Heating Systems

How to fix heatslave 20/25?

Boiler on lockout had water in oil sorted that and bled boiler but now no oil coming through burner
Mend Heating, Home Heating Systems

How to fix my boiler?

I have a Bosch-Worcester Heatslave 12-14 combi boiler, and it is not firing on demand although we do have some... [Read more]
Mend Heating, Home Heating Systems

heatslave trips out?

My Worcester Heatslave 15/19 burner light trips out.have to increase water pressure via filling loop to get b... [Read more]
Mend Heating, Home Heating Systems

my new boiler smells horrible?

the boiler has caused a noxious smell since it was installed last nov. I have called out the firm twice about ... [Read more]
Pages 131211109

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