Recent content by Kester_holmes

It was the grey wires connected to the pump live, and one of the valves was never making that live/never coming on. It was definitely the valve head that failed. Think it’s seeping much not amount of water and seized up the motor bit over summer. It confused me that I think the replacement...

There is also a thermostat on the heat store/ storage cylinder. Interested in what upgrades you recommend: do you mean WiFi trvs or room thermostats or summat else? It’s oil boiler as no mains gas, so fairly costly. We try and minimise use of the heating full stop, by 3 short time slots ...

Thanks for all your replies and suggestions. The system was installed 15 years ago when house was renovated, without thermostats. The two zones are two sides of the house (ours, and our kind in-laws who let us build on!), each with own controller to call for heat (or at least for pump to be...

Will do, cheers.

Thanks for your answers/suggestions. Manual override turns the pump on but it stops after 1 sec. Controller is a newlec centaur plus NLC21. I’m not sure how to link the controller out. Just disconnect it and ensure the wire to pump is connected to live?

Neither zone had its own room thermostat, TRVs only. I should’ve said this had all worked for 15 years, zone 1 only just stopped working.

Zone 1 rads working, zone 2 doesn’t switch pump on so rads don’t operate. Trying to work out whether it’s the motorised valve, or wall controller. When you remove the electrical box from zone 2 valve , the metal valve operates left and right freely, and when zone 1 is pumping heat , you can...