Hello, first post, nice to be here!
Got a Potterton Netaheat Profile 80e conventional boiler. The heating works fine with the boiler thermostat turned right up (5 or Max). But if the thermostat is above 2 then the boiler thermal trip activates when heating water for the cylinder. It works ok for both heating and water set to 2 but there's obviously a problem on the hot water side and getting worse 'cos it used to work fine at 3 or 4. Any advice please? I've read around a bit - could an airlock in the cylinder cause this?
Thanks!
Got a Potterton Netaheat Profile 80e conventional boiler. The heating works fine with the boiler thermostat turned right up (5 or Max). But if the thermostat is above 2 then the boiler thermal trip activates when heating water for the cylinder. It works ok for both heating and water set to 2 but there's obviously a problem on the hot water side and getting worse 'cos it used to work fine at 3 or 4. Any advice please? I've read around a bit - could an airlock in the cylinder cause this?
Thanks!