Hi,
I have a fairly old potterton boiler, hot water tank, typical GCH and HW system. Digital thermostat and modern digi timer etc.
Recently its started to trip the electrics at the RCD. With the fused switch to the HW/CH off the electrics are absolutely fine with no tripping. Which is why I suspect the heating system.
When the CH/HW switch is on, (i.e. after I reset the RCD and put fused switch back on) it doesn't trip straight away only when both the HW and CH are on at the same time and even then it can be 30 seconds to 3-4mins later before it trips.
Also the CH doesn't work on its own, it won't start the boiler going regardless of the stat without the HW also being on. So I'm guessing the 2 x things are linked. Bit of internet research suggests it might be the 3 way valve near the HW tank.
Am I on the right track, could a faulty 3 way valve be causing the electric to trip? I've left a few VM's with a few plumbers but thought I would seek some advice on here as well.
Thanks
I have a fairly old potterton boiler, hot water tank, typical GCH and HW system. Digital thermostat and modern digi timer etc.
Recently its started to trip the electrics at the RCD. With the fused switch to the HW/CH off the electrics are absolutely fine with no tripping. Which is why I suspect the heating system.
When the CH/HW switch is on, (i.e. after I reset the RCD and put fused switch back on) it doesn't trip straight away only when both the HW and CH are on at the same time and even then it can be 30 seconds to 3-4mins later before it trips.
Also the CH doesn't work on its own, it won't start the boiler going regardless of the stat without the HW also being on. So I'm guessing the 2 x things are linked. Bit of internet research suggests it might be the 3 way valve near the HW tank.
Am I on the right track, could a faulty 3 way valve be causing the electric to trip? I've left a few VM's with a few plumbers but thought I would seek some advice on here as well.
Thanks