How to mend Thermostat Heating Honeywell

1

RAadiators getting hot with heating controls turned off?

Just moved in to new home and noticed when Heating/water pump kicks in all the radiators in the house are gett... [Read more]

1

no heating on my prima60f?

i have a potterton prima 60f, my room thermostat keeps blowing the fuse on the honeywell contol, so no not wat... [Read more]

1

Programming Honeywell CM921?

Hi: The heating engineer installed this unit during installation of a new boiler. This is a 1 day wireless pro... [Read more]

1

c h boiler heats HW supply only,no central heating?

My system is a fully pumped central heating installation, with room & cylinder thermostat. Could the motorise... [Read more]

1

hot water but no heating?

hello. i have a worcester danesmoor oil boiler, its a sealed system, honeywell st699b programer honeywell V... [Read more]

What is the operational relationship between boiler and thermostat?

I have a Worcester 28CDi combi boiler with a Honeywell T40 thermostat. I wanted to change the thermostat to a ... [Read more]

4

My Potterton 80e often doesn't start up anyone know why?

My Potterton 80e gas central heating and hot water boiler often won't fire up on its own . We tend to have ... [Read more]

1

DIGISTAT RF3 APPEARS TO NOT BE TALKING TO BOILER?

The thermostat registers the temperature but if it is too cold and we try to raise the temperature, the flame ... [Read more]

12

Would router interfere with wireless room thermostat?

Our room thermostat ( Honeywell) has ceased to communicate with our boiler.This coincides with having a router... [Read more]

How can I fireup my Ferroli 102 (0208L83093)?

Hi all desperately need your help! My Ferroli boiler system was working absolutely fine, in th morning couldn... [Read more]

honeywellST6300A?

just moved to new property have set the timer, put thermostat to 24 degrees but heating is not working. The bo... [Read more]

Need to fix central heating timer?

I have a Potterton model EP2002 the hot water light wont come on and there's no hot water, also the heating li... [Read more]

5

Potterton Netaheat 1-16 MkIIF heats up water but not the heating?

It was working fine yesterday and today I put the hot water on and it fired fine, nice hot water no probs. Bu... [Read more]

1

Why does my Digistat RF2 have a blank screen?

My Digistat RF2 does not show the control settings on the screen (just a blank screen) and is not working as a... [Read more]

1

how can i find out what's wrong with my heating?

My boiler is firing but the radiators aren't getting hot. Is my thermostat broken? How do i find out? It is a ... [Read more]

9

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]

1

what are the silver/grey boxes for?

next to the copper cylinder attached to two different water pipes in my airing cupboard are two boxes which ha... [Read more]

1

how to rewire from scratch my central heating system?

we have a baxi bermuda back boiler central heating system that is twenty years old now. we have replaced the p... [Read more]

1

Central heating problem - can you please help?

Just back from a weeks holiday, switched heating on but it's not working, water was left to come on for an hou... [Read more]

4

Problem with netaheat profile 30e?

Hello, I have the above combi boiler and my problem is this. On the Honeywell control panel I can select the... [Read more]