Worcester 28i - no heating

[JSM87]

Hello guys

I have a Worcester 28i central heating system.

Yesterday I came home to find the house was freezing with no central heating and no hot water. It had been left on while I was out in full working order so its not as if I had manually done something to trigger a fault.

• It powers on
• There is a red LED indicator to say its powered on
• There is no noise other than the timer clicking for around 5 seconds when its powered on, then it sounds as if its trying to ignite at which point it makes a bit of a rumble but not the normal rumble it used to make which would be the gas ignition.
• the pressure is at 1.5
• I've bled all radiators (3 radiators had air in them but fine now)
• When I turn the hot tap on there is a clicking noise that clicks once, I think this is the spark maybe. If im right in saying its as if its trying to spark but doesn't ignite hence no big rumble noise.
• Im unable to re/de-pressurise the system above or below 1.5 as when I repeat the pressuring method it doesnt budge. Whether this is because it is already fully pressurised I don't know, but just thought Id mention.
• Our gas fire and cooker work fine

Can anyone help. I'm happy to try out any suggestions.

Whoever can lead me to a resolution is a hero.

 

[Agile]

Never bleed rads to try to cure a fault.

Thats likely to create another.

Your pressure gauge may be stuck.

You may need to call someone out so the earlier you join the queue the better!

Tony

 

[JSM87]

Your pressure gauge may be stuck.

Tony

If it is, how can I check to see if it is and how can I fix

Also, should the pressure gage * ALWAYS * move in some way when you open the valves, even if its already been done.

 

[citreonman]

hi I had the same problem and to prove the valve was not stuck I bled the radiator and it reduced to below 1 I just followed the repressurizing instructions in the manual and as soon as it was above 1.5 it relit and has had no problems since :
Mick

 

[darkan9el]

I have the cdi 42 and my condensation pipe froze up, just got it thawed out and is now lagged. might be worth checking.

 

[boilerdoktor]

which 28 i is it? is it the 28i, 28i junior standard efficiency or a condensing type!?!

do you get hot water?

what timer stat have you got!?