Hi all,
I've got a new issue that I wondered if anyone can shed some light on.
I've got a Potterton 2002 controller that seems to be intermittently unable to kick off the hot water in the afternoon. The timer is set for 4:30pm, at the allotted time, the orange light comes on, but the motor value doesn't move and the boiler doesn't fire.
The central heating is always "on" but controlled by the room stat via a Drayton DigiStat SCR. The stat is low at the moment so although the Potterton CH light is on, the boiler and motor valve are off - as expected.
What's not expected is that if the water SHOULD be on but isn't, but sliding the Potterton CH switch to OFF seems to allow the HW to come on!!
What might cause this? I've had a fair amount of work done to the system recently and am suspicious of the wiring job the plumber left behind.. Could some crossed wires cause this behaviour?
Any suggestion most welcome!
Thanks in advance,
Nic
I've got a new issue that I wondered if anyone can shed some light on.
I've got a Potterton 2002 controller that seems to be intermittently unable to kick off the hot water in the afternoon. The timer is set for 4:30pm, at the allotted time, the orange light comes on, but the motor value doesn't move and the boiler doesn't fire.
The central heating is always "on" but controlled by the room stat via a Drayton DigiStat SCR. The stat is low at the moment so although the Potterton CH light is on, the boiler and motor valve are off - as expected.
What's not expected is that if the water SHOULD be on but isn't, but sliding the Potterton CH switch to OFF seems to allow the HW to come on!!
What might cause this? I've had a fair amount of work done to the system recently and am suspicious of the wiring job the plumber left behind.. Could some crossed wires cause this behaviour?
Any suggestion most welcome!
Thanks in advance,
Nic