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Yes it was working, then working sometimes, now not working at all

Thanks for the reply, I will try this in the morning and update here. Thank you!

Another update. I tested the switched live for the radiator value with the heating turned on, putting the thermostat up full I am still getting zero volts. This leads me to think the thermostat is faulty?? Can anyone recommend a direct replacement for the sunvic TLX 2356 thermostat as they are...

Ok, I have swapped over the actuators. So the situation is still the same were the water is working as it should but the heating value keeps turning itself off even after i manually move the wheel to open. Any other suggestions. Thanks again

Hi, thank you for the suggestion. The hot water and radiator values are the exact same model so let me swap them around and ill get back to you shortly. Appreciate the reply

Thank you for your reply, sorry i wasn't to clear in my description. I am competent with electrics and have a multimeter there and most tools if there is anyway you can suggest to find the fault? I should say i have already replaced the programmer and have the same issue.

Hi, I have an oil central heating system. The burner fires and heats the water no problem, but when i want to heat the radiators the actuator that controls the radiator automatically switches to the off position, If I manually turn the wheel to the on position it will stay on for a few...