Moved into new house and boiler permanent 240v supply is wired through timer/thermostat.
Link is in place so that boiler runs continuously when powered up. Works OK but manual explicitly states it should NOT be wired this way.
Have removed link, added permanent supply and connected timer/thermostat output to 240v external control terminal. When permanent supply is switched on, boiler fan runs briefly and display shows pressure and green light. However, when external controls terminal from timer/thermostat goes live, boiler does not fire up.
1) What are possible consequnces of leaving it wired like it was and is it safe to do so - it's been like this for 3 years at least?
2) What am I doing wrong to run with a true permanent supply and external controls wired correctly?
Link is in place so that boiler runs continuously when powered up. Works OK but manual explicitly states it should NOT be wired this way.
Have removed link, added permanent supply and connected timer/thermostat output to 240v external control terminal. When permanent supply is switched on, boiler fan runs briefly and display shows pressure and green light. However, when external controls terminal from timer/thermostat goes live, boiler does not fire up.
1) What are possible consequnces of leaving it wired like it was and is it safe to do so - it's been like this for 3 years at least?
2) What am I doing wrong to run with a true permanent supply and external controls wired correctly?