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60 questions have been found containing the words 'worcester 28si' in category Heating, Home Heating Systems

How to mend...Worcester 28si

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Change time on boiler. Clock?

How can I change the time on my boiler. It’s a Worcester Bosch model 28SI 11
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Worcester 28si boiler top up?

I have a very old worester 28si and the pressure is down to around 0.4 i cannot figure out how to up the press... [Read more]
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worcester 28Si II hot water fault?

My Worcester boiler heats the central heating water ok, and seems to heat the hot tap water if the central hea... [Read more]
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Worcester 28si II needs re pressurising HELP!?

I have read online on how to do this and but there is no black unit with space for the white key (which I don'... [Read more]
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Worcester 28si 11?

I've changed psb and fan,when I switch boiler on red light flashes straight away with CH off and not calling f... [Read more]
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Worcester 28si Boiler?

My Worcester 28si Pump runs continuously when not calling for heat, have to turn the power off, can anyone he... [Read more]
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worcester 28si ll?

my combi boiler keeps triping out when the heating comes on
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vibrating / noisy boiler ?

hi all , have a combi boiler worcester 28si II , fire central heating up for 5 / 10 min and get awful vibratin... [Read more]
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How do I recharge the water in my worcester 28si II?

I have inserted the recharging key as far as it will go and have turned in both directions but it will not rec... [Read more]
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How can i fix my Worcester Bosch 28Si II?

Hi my boiler started flashing once per second and i've just been reseting it on and off for about 2 weeks putt... [Read more]
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