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Mend 25

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We have 325 questions about mending '25' in category Heating, Home Heating Systems

How to mend 25

Mend boiler heating trips

when the oil burner starts up the rcd trips out?

my worcester bosch greenstar utility 18/25 boiler will not fire up instead the rcd trips out. I switch the boi... [Read more]
Mend oil boiler pump

worcester heatslave 20/25 rso oil boiler?

is the circulating pump in operation when in hot water mode,ie heating turned off.
Mend boiler pressure heating
2

Why does pressure keep rising to 3 bar on Worcester Heatslave 20/25?

I have a 20 year old Worcester Heatslave 20/25. The heating and hot water are switched off. The pressure gauge... [Read more]
Mend boiler radiators thermostat

Worcester heatslave 20/25?

Hi, I have been having a problem with my heating for some months now but very intermittent, occasionally the h... [Read more]
Mend running worcester heating

Boiler seems to be running cooler?

We have a Worcester Heatslave 20/25 boiler and it has been fine so far with regular maintenance. when the hea... [Read more]
Mend oil replaced nozzle

worcester 20/25?

I have a Worcester 20/25 oil fired it is sooting up I have replaced the nozzle with no effect any ideas
Mend burner green light

My Worcester Greenstar 24Ri stopped working?

My Worcester Greenstar 24Ri stopped working and it wont fire up. The Burner green light comes on and the syste... [Read more]
Mend worcester stopped working

My Worcester Greenstar 24Ri stopped working?

My Worcester Greenstar 24Ri won't fire up. The Burner green light comes on as if ready to fire up but it goes ... [Read more]
Mend heating diverter valve thermostat

Problem with Worcester Heatslave 20/25 Programmer?

I have had three programmers fitted to my system for one reason or another. This one seems to be causing the ... [Read more]
Mend boiler heating leakage
1

hi i doknow who fix my boiler in feb 2011 is make vokera compect ?

25 he model but I have problem in central heating every day I have to fil up water pressure and night time I s... [Read more]
Mend boiler heating leak
2

have vokera compact 25 boiler keep having to fill up every two hours?

there are no leaks on system but pressure goes down all the time
Mend ups heating pump
2

Grundfos UPS 15 45 x18 central heating pump?

The tests shown confirmed that my pump still works without the Capacitor .The Original Bosch Capacitor is rat... [Read more]
Mend boiler Worcester fault

how to fix?

after coming home from a two week holiday my Worcester R 25 & 30 HE combi will not fire up. The display goes t... [Read more]
Mend boiler after power

Boiler lockout after power cut?

Following a power cut my Worcester Heatslave 20/25 is on lockout. Oil burner will not ignite, would a power c... [Read more]
Mend boiler heating thermostat

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 worcester combi hot water
2

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 boiler heating heat exchanger

scale in hot water worstercombi 19/25?

scale in the hot water . changed heat exchanger and it still occures
Mend heating boiler hot water

boiler?

sime murelle HE 25 BF have hot water but no heating
Mend boiler heating fault code

What is Fault Code - - (flashing on a ferroli optimax 25 c boiler?

What is Fault Code - - on a ferroli optimax 25 c boiler - this is flashing continuosly
Mend combi heating fault

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]

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