Any ideas about the following problem:
We have a gravity-fed HW system and pumped CH, with a Glow-worm conventional boiler (model 60B).
When we had the kitchen redone we replaced the old electromechanical controller with a Lifestyle 522 programmer.
Now we only get hot water if the heating is on - not ideal at the moment
There are no cylinder or room thermostats, in addition the pump is probably buried inside some false panelling which has been tiled over (not by us!)
When we turn on the HW at the programmer, the boiler fires up for about 30 seconds then goes off. It sporadically restarts every 20 mins or so but then goes back off.
With CH and HW turned on then the boiler stays on constantly.
Investigating with the multimeter shows that the programmer is supplying the boiler correctly, and that the boiler thermostat is receiving power and operating the gas supply properly when first fired, but for some reason is shutting the gas off when HW is on, but not when CH is on.
The controller appears to be wired correctly, but as I can't get to the pump it's difficult to verify this.
Any thoughts?
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We have a gravity-fed HW system and pumped CH, with a Glow-worm conventional boiler (model 60B).
When we had the kitchen redone we replaced the old electromechanical controller with a Lifestyle 522 programmer.
Now we only get hot water if the heating is on - not ideal at the moment
There are no cylinder or room thermostats, in addition the pump is probably buried inside some false panelling which has been tiled over (not by us!)
When we turn on the HW at the programmer, the boiler fires up for about 30 seconds then goes off. It sporadically restarts every 20 mins or so but then goes back off.
With CH and HW turned on then the boiler stays on constantly.
Investigating with the multimeter shows that the programmer is supplying the boiler correctly, and that the boiler thermostat is receiving power and operating the gas supply properly when first fired, but for some reason is shutting the gas off when HW is on, but not when CH is on.
The controller appears to be wired correctly, but as I can't get to the pump it's difficult to verify this.
Any thoughts?
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