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Fix Fault Heatslave

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We have 247 questions about fixing 'heatslave'

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Heatslave 20/25?

Quite often the pump on the boiler cuts out and so the central heating goes off. Click the room stat to off and then turn again to click on and the pump will start operating again and radiators warm u ... more

home Fix label Heating label_important Oil Filled Radiatorsdone

worcester heatslave 15/19?

hello all please help. we have the above boiler and are have a problem the pressure is at 4bar and has been for a while is this ok or does it need to be lowered and if so how would i lower it than ... more

home Fix label Heating label_important Home Heating Systems category Worcester

Worcester heatslave 15/19 run out of oil, do i need to prime?

Hope someone can help, ran out of oil the other day. Just had a full tank delivered but the boiler doesn't want to heat any water up. Do i need to prime it to draw some fuel through?

home Fix label Heating label_important Home Heating Systems category Worcesterdone

How do I change a heat exchanger in a Worcester Heatslave 15/19?

Do I need to drain full system.

home Fix label Heating label_important Home Heating Systems category Worcester

Worcester Heatslave 20/25 Lockout Light on?

Hi my lockout light came on on my boiler, I had run out of fuel totally! I have filled my oil tank to the top (2300 litres), I have pressed the reset button several times but it is still not working. ... more

home Fix label Heating label_important Oil Filled Radiators category Worcesterdone

Worcester oil heatslave 20/25 about 4years old. ?

When i ask for hot water I get the pre-heated hot water but when this is exhausted it runs cold. The boiler still runs in an attempt to heat more water but at the same time the radiators get piping ho ... more

home Fix label Heating label_important Home Heating Systems category Worcesterdone

can i fix it?

I have a worcester 20/25 heatslave oil boiler,and have run out of oil. lockout has come into force, and does every time we re-set, even though we now have oil, can anybody help

home Fix label Heating label_important Oil Filled Radiators category Worcester

How can I fix my Worcester heatslave 12/14?

Our boiler packed up in the night and when we went to check it the temperature gauge was right up. We topped it up with some water and the temp gauge has gone down and now seems to be working again ... more

home Fix label Heating label_important Oil Filled Radiators category Worcester

Oil boiler will not restart after refilling the empty tank?

I have a Worcester Heatslave 20/25 boiler but we ran out of oil recently in error. The oil in the outside viewing glass is almost empty but the tank is now full. How do I get the oil to fill the ... more

home Fix label Heating label_important Home Heating Systems category Worcester

water pressure?

hi just tried the valve on vessel just air came out, any thing else would be helpful,i have worcester heatslave had exspantion vessel changed a few years ago. thanks wayne

home Fix label Heating label_important Home Heating Systems category Worcester

Heatslave 20/25 is Locking out?

My Worcester Bosh Heatslave 20/25 oil combi has just locked out and despite numerous resets won't fire back up. I replaced the burner motor last year but when it tries to fire it does sound like the ... more

home Fix label Heating label_important Oil Filled Radiators category Worcesterdone

replacing water pump?

i want to replace the water circulation pump on my worcester heatslave 20/25 oil fired, it has a bosch pump .can i replace the front of the pump or do i have to replace all the unit. any tips would be ... more

home Fix label Heating label_important Oil Filled Radiators category Worcesterdone

Hot water problem Worcester Heatslave 20/25?

The boiler fires up to provide hot water if a hot tap is used- even if the boiler control button for hot water is off, the radiaters are switched on and working fine, but cant seem to stop it firing u ... more

home Fix label Heating label_important Home Heating Systems category Worcesterdone

Worcester heatslave low hot water pressure. ?

I have an old heatslave combi. The heating side works well but the hot water flow rate is low. Any ideas? thanks

home Fix label Heating label_important Home Heating Systems category Worcesterdone

worcester heatslave 20/25 oil boiler?

The boiler seems to be working fine but im not getting hot water from the domestic hot water. Any ideas whats happened.

home Fix label Heating label_important Home Heating Systems category Worcesterdone

worcester heatslave 20/25 hot water but no central heating?

the central heating has just been turned back on on my oil fired heatslave 20/25 only to find it does not work, normally we select on on the boiler turn the room stat and it come on . If you turn the ... more

home Fix label Heating label_important Oil Filled Radiators category Worcesterdone

Worcester Heatslave 20/25 - can't locate lockout reset button?

Hi, Water pressure had dropped so lockout light came on. I have looked everywhere but can't find the reset button. Can anyone tell me where I can find it? Thanks, Heather

home Fix label Heating label_important Oil Filled Radiators category Worcesterdone

worcester heatslave 12/14 oil combi boiler firing intermitently?

My Heatslave 12/14 oil combi boiler is being very tempremental and has been for some months. It has locked out nearly everyday for too long.(since last service actually) I've got to know the basic w ... more

home Fix label Heating label_important Home Heating Systems category Worcesterdone

Worcester HeatSlave 20/25 ?

How do you bleed air from the pump?

home Fix label Heating label_important Home Heating Systems category Worcesterdone

worcester heatslave 15/19 combination oil boiler?

hi we have had no heating now for 3wks could anyone tell me whats wrong with my boiler i have hot water but no heating .when heating is switched on it gets hot at the radiator valve end on the rad clo ... more

home Fix label Heating label_important Home Heating Systems category Worcesterdone

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