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We have to replace pcb because boiler was locking out everytime we reset and ends with f22 error after replacing pcb f22 error stopped, so replacing pcb is correct thing to do Just spoke valliant support they said permanent rad symbol means it's ready to operate buts it's not actually heating...

That is the problem he is not responding anymore So I have left with two option Either I call new engineer to check pcb 24x connection Or Replace the divertor 2 port valve head Which one should I try first just to keep the cost down?

Can you recommend which model I need.to buy and also I need to attach the camera as well so I can control the alarm remotely by seeing indoor camera

Front display panel I see s.0 code no heat demand but still pump is running very confused

Boiler had f22 error so gas engineer replaced pcb that fix the f22 error however boiler is constantly running at the background @picasso I am not sure about 24v connection to pcb as it was replaced by gas engineer do you think this might have caused the problem ?

recently changed the PCB

model is honeywell Accenta Mini G4 Alarm Panel + LCD Keypad - 8SP399A...

nothing gets warm, everything stays normal and boiler doesn't fire up its just the pump running constantly and rad symbol stays on permanently inspite of all controllers are off

Currently hold honeywell burglar alarm need to update to something smart where i can control the alarm using my phone can i upgrade the current model with new one by keeping existing sensors or do i need to replace everything brand new

Boiler works as expected CH & HW works by honeywell controller. no issue there i can switch on & off Problem is boiler constantly running ( with rad symbol permanently on & pump coming on & off ) without any demand i have turned the power on and off multiple times both the boiler & honeywell...

issue started before changing the bulbs, i was trying to change below bulb LE GU10 LED Light Bulbs, Warm White 2700K, 50W Halogen Bulb Equivalent, 4W 350lm, 120 Degree Beam Angle, Pack of 10 [Energy Class A++]

Part of kitchen lights are all off around 5 spot lights tried to change the bulbs no working All RCD is switched on no problem there Tried the RCD test and trip is working as expected but in this case all RCD are switched on but still kitchen lights are not coming up any idea

Valiant echo tech plus 624 system boiler controlled by honeywell rad symbol always on, is this normal ? and also internal pump comes on and off automatically on its own is this normal ? this happens when both HW & CH are both off in honeywell central heating and HW & CH works as expected when...