R
Ravi Patel
Thermostat and Programmer not communicating with Boiler. Both have been replaced. Any ideas?
On the Glowworm boiler 18sxi I can use the CH controller to switch on/off the boiler, that works fine.
Also upstairs i have a tank, when I switch that on I get hot water. But what else can I check as the External Thermostat and Extrnal Programmer not communicating with the Boiler.
On the Glowworm boiler 18sxi I can use the CH controller to switch on/off the boiler, that works fine.
Also upstairs i have a tank, when I switch that on I get hot water. But what else can I check as the External Thermostat and Extrnal Programmer not communicating with the Boiler.
