Thanks Bob-I've pressed the reset button on the Thermostat under the dial. Burner has fired up and heat has returned!
Thanks Oilboffin for your help and Terrywookfit for your running commentary ;)
Thanks oilboffin-pressure is at 1.25bar. Have tried to press red reset button to no avail. Is there another button somewhere? (Apologies for my stupidity)
I have 2 room thermostats which I've turned up full, past the "click" to ensure they haven't locked out as had this issue before.
Programmer is an EPH, 4 zone
OK-thats a start. When I press the reset button, it has no impact.
I've tried to ensure there's no airlock-it has tigerloop so shouldn't be an issue?
The burner is Riello RD 2.2 26-33.
Can anyone help with this? It's cold and getting colder!
Heating was working fine earlier today -pressed Boost and no response.
Tried the reset button but it wasn't lit up?
THANKS