the honeywell thermostat on my system appeared not to be working so i swapped it for a new honeywell 6360 analog type, wiring was like for like so easy to fit . problem is , it doesn,t appear to be working either . i have turned the temp down to 18 but the room temperatures just go up and up, until i turn off the boiler . the thermostat appears to go to a wiring loom which is connected to some motorised valves etc . the wiring also appears to go to a randall programmer which is at the side of the boiler . in other words the stat doesn,t go directly to the boiler , is this normal in old systems ? any ideas on what to check first, wiring etc cheers darren
Faulty thermostat ?
- Thread starter firekill
- Start date
The Honeywell stat should give an audible 'click' when it switches on or off. Mine has just done so as I write. Problem is likely to lie with either a motorised valve or the wiring, has the system worked ok previously?
only been in present house for 6 months and it has never worked since weve been here
i am fairly competent with electrical stuff & i have a multimetre , do i need to do continuity tests on all the wiring etc
You will need to take a look at the type of system and how it is plumbed to work out what sort of wiring diagram has been followed.
Is it a combi boiler or is there a hot water sterage tank?
If there's a tank has a 3-port motorised valve been used to direct the flow of hot water from the boiler to CH / Domestic Hot Water?
DIYnot Local
Staff member
If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Are you a trade or supplier? You can create your listing free at DIYnot Local
