Help.
Yesterday my boiler shut down. I was in the room when it happened. Radiators were extremely hot. I reset and same thing happened (shut down was proceeded by clanging and banging). Possibly 5 years ago the
exact same thing happened. It was the HI stat that was faulty. Today I opened the boiler and changed both HI and LO stats. I also changed the TC while it was all opened.
Now the boiler continues to run when there is no demand from the programmer? Switching the thermostat to OFF has no effect.
What have I done?
Yesterday my boiler shut down. I was in the room when it happened. Radiators were extremely hot. I reset and same thing happened (shut down was proceeded by clanging and banging). Possibly 5 years ago the
exact same thing happened. It was the HI stat that was faulty. Today I opened the boiler and changed both HI and LO stats. I also changed the TC while it was all opened.
Now the boiler continues to run when there is no demand from the programmer? Switching the thermostat to OFF has no effect.
What have I done?