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ht96 replied to the thread No heating - MA1 actuator not moving - valve not seized - HW fine but interrupted if UP2 HW switched on.

You wouldn't believe it. A knock on the top right of the UP2 has triggered the heating. took 3 knocks, the first 2 briefly demanded...
10 Oct 2026
H
ht96 posted the thread No heating - MA1 actuator not moving - valve not seized - HW fine but interrupted if UP2 HW switched on in Plumbing and Central Heating.

I have the following setup: Glow-worm 30R regular boiler Hot water cylinder with cylinder thermostat British Gas UP2 programmer...
10 Oct 2026