- Messages
- 6
My central heating won't turn off via the wireless thermostat. I can see that it communicates correctly so suspected a problem with the zone valve. It is a Honeywell 2 port and I notice the manual level is completely loose and I can't lock it in the manual 'on' mode. We have other zones and those valves are stiff when off but can be manually moved to 'on'. I thought it might be an problem with the motor so I have replaced the synchron motor but it did not resolve the issue. Does this mean that the zone valve is faulty and needs replacing and if so is this best left to a professional (as you have probably guessed I am a complete amateur).
Attached a photo of the valve and also the motor I took out which around the cog had a brown thick stain on it which was suspicious. Any ideas?
Not a massive problem at the moment as can turn the rads off but would like to fix it.
Attached a photo of the valve and also the motor I took out which around the cog had a brown thick stain on it which was suspicious. Any ideas?
Not a massive problem at the moment as can turn the rads off but would like to fix it.