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We have 136 questions about mending 'heating room stat'

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Mend Heating, Home Heating Systems

Boiler fires up when demand for hot water but doesn't when demand for C/H?

I have a Potterton Netaheat Profile 80e boiler, Honeywell V4073A mid-position valve, Honeywell ST699B programm... [Read more]
Mend Heating, Home Heating Systems

Vaillant VCW sine18 T3 WFH-hot water supply problem?

My boiler will not provide hot water at the tap unless it is running in heating mode when the tap is opened (p... [Read more]
Mend Heating, Home Heating Systems

Ravenheat CSI-85 Combi, erratic operation, any ideas?

Boiler now 2 years old. Works fine generally, however it has now started to operate even when the settings sa... [Read more]
Mend Heating, Home Heating Systems

Sime Superior 50 heating not working?

We have a Sime Superior 50 boiler which lights up every now and then. The Pilot is alight. Fan seems to be w... [Read more]
Mend Heating, Home Heating Systems

Potterton 50e does not run for very long?

I have a Potterton 50e which does not run for very long hence no heating and no hot water. If i turn up the ro... [Read more]
Mend Heating, Home Heating Systems

How to fix a biasi 24s combination boiler?

Biasi 24 s combi boiler. The problem is the central heating comes on randomly even though the thermostat for h... [Read more]
Mend Heating, Home Heating Systems

myson apollo boiler?

hi just replaced heating cotrols ie, programer,room stat,cylinderstat used a salus/glowworm controls and wirin... [Read more]
Mend Heating, Home Heating Systems

How can i make my vokera receiver recognize the RF unit room thermostat?

I have a vokera boiler and wireless room thermostat. All was working well until 2 days ago. Changed batteries ... [Read more]
Mend Heating, Home Heating Systems

Cold radiators Ferroli Optimax 25c?

My newly installed combi gives instant hot water from the tap but I have to turn my room stat up to 30 before ... [Read more]
Mend Heating, Home Heating Systems

glowworm spacesaver mk 2 no hot water?

My problem is i have no or luke warm hot water, the central heating works fine. Its controlled by a randall 10... [Read more]
Mend Heating, Home Heating Systems

Baxi 105e c/heating cycling?

The boiler seems to be heating in bursts. The main burner is only lighting for a few seconds and then shuts o... [Read more]
Mend Heating, Home Heating Systems

Potterton Profile 30E keeps tripping on Central Heating?

My Potterton Profile 30E keeps tripping off and requires the reset button to be pressed to restart. This typic... [Read more]
Mend Heating, Home Heating Systems

I get hot water, but no central heating?

i get hot water, but no central heating,is it my drayton mid positon actuator valve, it is a Y plan system and... [Read more]
Mend Heating, Home Heating Systems

potterton puma 80?

when i stop using hot water the boiler goes off and the pilot flame goes out and when heating is on and goes o... [Read more]
Mend Heating, Home Heating Systems

how can i fix my glow worm fuelsaver 60f?

it runs ok starts up and fires gets water in central heating warm and hot water warm but not hot checked room ... [Read more]
Mend Heating, Home Heating Systems

how can I fix my glow-worm fuelsaver?

it runs ok starts up and fires gets water in central heating warm and hot water warm but not hot checked room ... [Read more]
Mend Heating, Home Heating Systems

I have a Johnson & Starley warm air heating system. The model is Hi Spec?

The model is a high spec J32 and just recently does not want to fire up any more. The pilot light is remaining... [Read more]
Mend Heating, Home Heating Systems

radiators heating up when only hot water is selected Ideal Classic FF 250?

With my room stat turned right down and the controller selected for hot water only my radiators are heating up... [Read more]
Mend Heating, Home Heating Systems

Ariston Euro Combi A/23MFFI No heating?

Hot water Ok but heating only works intermitent when called for by room stat. Boiler lights for few seconds th... [Read more]
Mend Heating, Home Heating Systems

potterton netaheat profile 80e not heating properly?

cetral heating not getting anywhere near up to temp without boiler switching off. changed room stat to no avai... [Read more]
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