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Question

The demand light will not light up/work - everything else is lit and seems to be working

Submitted: 322 days and 16 hours ago.

Category: HVAC

Value: $18

Status: CLOSED

Posted by alex hewitt 322 days and 16 hours ago.

Info Request

Hi

Could you let us have the make and model

Alex

322 days and 16 hours ago.

Reply

Hi

It is a Worcester 240 Boiler sysytem.

Fiona

Posted by alex hewitt 322 days and 16 hours ago.

Answer

Hi Fiona

Do you have a room thermostat?

Is the timer/programmer built in to the boiler or seperate ( on the wall) ?

Alex

322 days and 16 hours ago.

Reply

Hi Alex

No I don't have a room thermostat it is all built in to the boiler. Everything seems to be fine apart from the demand light not lighting up and not having any hot water/heating.

Fiona

Posted by alex hewitt 322 days and 16 hours ago.

Answer

Okay you should have a Worcester 240 combi RSF ?

Pressure gauge on the front . What is it reading?

Run the hot tap does it fire?

Alex.

322 days and 16 hours ago.

Reply

Alex

Yes it is the combi rsf

The pressure gauge is on just above 0 but no it does not fire when i run the hot tap.

Fiona

Posted by alex hewitt 322 days and 15 hours ago.

Answer

Ok the pressure sensor has locked the boiler out and you need to re pressure the system to about 1.5 on the gauge.

On this model you either have an integral filling point and you should have a white plastic key or sometimes the installer may have opted for a filling loop below the boiler which looks like this

322 days and 15 hours ago.

Reply

Alex

I don't appear to have a white key but then again I can't see a loop below the boiler either.

Fiona

Posted by alex hewitt 322 days and 15 hours ago.

Answer

If you look on the under side of the boiler there is a white cover (plastic) this just pulls away . on this cover there is a place for the key to be stored. I have yet to actually find one there though but worth a try.

I need to go out a breakdown , but should be back on line in about an hour and I am sure we can sort this one out

Alex

Are you in the uk?

322 days and 15 hours ago.

Reply

Hi

This boiler is one that the front comes off but nothing at the bottom seems to slide out - have checked on the shelf in the boiler but nothing there, suprise suprise.

Yes I am in the UK, down in Wiltshire.

Fiona

Posted by alex hewitt 322 days and 13 hours ago.

Answer

Hi Fiona
Sorry for the delay . I'm on call today.

I,m in Stroud, little bit too far to sort it out

.

Have a quick look at this link

http://www.ultimatehandyman.co.uk/TOPPING_UP_A_COMBI_BOILER.htm

Thats what you need to do.

Let me know how you get on

Alex

Accepted Answer

Hi

Another useful link is http://www.safecert.co.uk/ follow the contact details and ring the number,

Alex

Accepts:
Expert:	alex hewitt
Pos. Feedback:	100.0 %
Answered:	1/3/2009

HVAC Technician

10 years UK based boiler repair and servicing. Registered gas operative in Uk

322 days and 10 hours ago.

Reply

Hi Alex

Thanks for this - turns out I need a new gas valve.

Thanks for your help though.

Fiona

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Question

The demand light will not light up/work - everything else is lit and seems to be working

Info Request

Hi Could you let us have the make and model Alex

Reply

Hi It is a Worcester 240 Boiler sysytem. Fiona

Answer

Hi Fiona Do you have a room thermostat? Is the timer/programmer built in to the boiler or seperate ( on the wall) ? Alex

Reply

Hi Alex No I don't have a room thermostat it is all built in to the boiler. Everything seems to be fine apart from the demand light not lighting up and not having any hot water/heating. Fiona

Answer

Okay you should have a Worcester 240 combi RSF ? Pressure gauge on the front . What is it reading? Run the hot tap does it fire? Alex.

Reply

Alex Yes it is the combi rsf The pressure gauge is on just above 0 but no it does not fire when i run the hot tap. Fiona

Answer

Reply

Alex I don't appear to have a white key but then again I can't see a loop below the boiler either. Fiona

Answer

Reply

Hi This boiler is one that the front comes off but nothing at the bottom seems to slide out - have checked on the shelf in the boiler but nothing there, suprise suprise. Yes I am in the UK, down in Wiltshire. Fiona

Answer

Hi Fiona Sorry for the delay . I'm on call today. I,m in Stroud, little bit too far to sort it out . Have a quick look at this link http://www.ultimatehandyman.co.uk/TOPPING_UP_A_COMBI_BOILER.htm Thats what you need to do. Let me know how you get on Alex

Accepted Answer

Hi Another useful link is http://www.safecert.co.uk/ follow the contact details and ring the number, Alex

Reply

Hi Alex Thanks for this - turns out I need a new gas valve. Thanks for your help though. Fiona

Related HVAC Questions

Hi

Could you let us have the make and model

Alex

Hi

It is a Worcester 240 Boiler sysytem.

Fiona

Hi Fiona

Do you have a room thermostat?

Is the timer/programmer built in to the boiler or seperate ( on the wall) ?

Alex

Hi Alex

No I don't have a room thermostat it is all built in to the boiler. Everything seems to be fine apart from the demand light not lighting up and not having any hot water/heating.

Fiona

Okay you should have a Worcester 240 combi RSF ?

Pressure gauge on the front . What is it reading?

Run the hot tap does it fire?

Alex.

Alex

Yes it is the combi rsf

The pressure gauge is on just above 0 but no it does not fire when i run the hot tap.

Fiona

Alex

I don't appear to have a white key but then again I can't see a loop below the boiler either.

Fiona

Hi

This boiler is one that the front comes off but nothing at the bottom seems to slide out - have checked on the shelf in the boiler but nothing there, suprise suprise.

Yes I am in the UK, down in Wiltshire.

Fiona

Hi Fiona
Sorry for the delay . I'm on call today.

I,m in Stroud, little bit too far to sort it out

.

Have a quick look at this link

http://www.ultimatehandyman.co.uk/TOPPING_UP_A_COMBI_BOILER.htm

Thats what you need to do.

Let me know how you get on

Alex

Hi

Another useful link is http://www.safecert.co.uk/ follow the contact details and ring the number,

Alex

Hi Alex

Thanks for this - turns out I need a new gas valve.

Thanks for your help though.

Fiona