Recent content by broomradioman

That could well be it then. The programmer certainly got a few jolts as I removed it of the back plate. What foxed me was that it was powered up, and looked normal. At least now I know it may be sticky relays in the programmer and I know how to remove/replace it. I think its called...

The original problem was no power being fed to the boiler even though the programmer had power (LEDs lit) and being in always on mode. I found that by jamming some card in the MV assembly to press the microswitch then power was supplied so I assumed it was a faulty microswitch on the MV. We'd...

Programmer is fine so its looking like the top MV. Just checked this morning and it seems fine for now and is working normally so perhaps I've loosened up whatever was sticking, though I know it wont last so i will get another MV to be sure. I think the fault is in the microswitch that the arm...

One last question before I adjourn to the village hall for new years eve, how do I remove the Lp522 programmer? Does it pull of?, Snapp off? slide off? or screw off? cheers Jim Happy new year to all and thanks to you all for the informative and useful replies!! :)

Its the one not near the megaflo inlet but up near the boiler and programmer that I've jammed. I'm going to swithc the boiler off manually overnite anyway so nothing should go awry and then trun it back on in the morning

and the supply to the thermostat is where? On the motorised valve there are several wires going to the motor and two wires (grey and orange) going to the microswitch. With the microswitch jammed closed and the programmer on "always on" the system is running for now at least so we have hot...

With no intervention from me there is no power to the boiler but there is power to the programmer. The boiler does not switch on and i've checked the reset switch and it has not fired. I have set the programmer to permanently on for both HW/CH (leds lit) and still no power to boiler. When I...

Dear All, I have a heating system that wont switch on. No power to boiler but programmer powered up and lit up fine . Boiler is an oil fired Wrocester 20/25 Danesmoor and the tank is a Megaflo 210. I have two Honeywell motorised valves one is a V4043H1056 and the other at the bottom of the...