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't have). There is a black knob with '3 bar' written on it which I assumed was for the pres ... 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 for hot water.??????

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low pressure?

My worcester 28si boiler has lost a lot of pressure to the hot water flow plus the water keeps going cold then another day is ok, has anyone had a similar problem?

Worcester 28si Boiler?

My Worcester 28si Pump runs continuously when not calling for heat, have to turn the power off, can anyone help cost me a lot of money last year maybe it's time to go ?

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 vibrating / banging noise. (as tho soming is blocked ) open up a tap or even flush the toilet the ... 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 recharge. I cannot find the installation manual but have read the users manual and it doesn' ... more

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 putting it on my list of things to get sorted. Today the light was flashing 5 times a second. ... more

The warning light is flashing red on my worcester 28si II ?

Heating not working, red warning light flashing, ignite button doesn't seem to work, dont want to press it too hard incase i break it,i dont have a manual as i have just bought this house

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the water gauge on my worcester 28si combi boiler has dropped to 0 what do?

On the front panel of my worcester 28si combi boiler there is a dial which i presume is water pressure it has gone right down to the bottom into red. What do I do ?

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boiler not igniting?

i have a worcester 28si 2 combi boiler.red light flashing .try to reset still same.

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How do you re charge a worcester 28si combi boiler ?

Hi I am attempting to resite some radiators and I have to drain and recharge the boiler. I know you have obtain a charging link, but where do you connect it, it is a bit vague in the instructions for ... more

Worcester 28Si boiler is leaking when heating is turned on?

Whilst the heating was on, the pressure was really low (0) (has been for a while, so we keep letting more water in to get to about 1.5) so I turned the valve to let more water in -the bar didnt real ... more

Worcester 28si II problem?

My boilers warning light comes on and the pressure bar goes below zero and nothing works, I have tried filling the system back up with water and restarting it like it states in the owners manual but n ... more

Pressure fault on Worcester 28Si II?

Hi. I'm repairing my boiler after it froze. I have the central heating working now (pump and flow sensor damaged), but when I turn on the mains water to the boiler it pressurises the system until it r ... more

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worcester 28si?

i have no hot water or heating when i turn the hot water on the only thing that happen is the domestic water flow light flash

where is the pressure valve on worcester 28Si?

spotted my sons boiler pressure gauge on almost 0!! I have a new condenser worcester and know where to fill mine up from but what i think is his has had an epoxy?sealant put on it to stop it leaking a ... more

noisy fan ?

I have a worcester 28si combi and there is a noise when the hot water demand increases. Its like an increase in revs of an engine and the noise quietens somewhat when the demand is switched off again. ... more

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Worcester 28si slow flashing red light - no heat or hot water?

a week ago i bled the radiators, topped up the boiler and tonight when i tried to run a shower there is no hot water - i checked the front of the boiler and have a red slow flashing light on the centr ... more

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worcester bosch 28si II?

recently had a gas engineer out as stopped working altogether with light flashing approx 1 per sec used reset button it fired up after about 10 sec watching flame through window started to fade away a ... more

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