My house is heated with a water boiler through baseboard heaters. The question I have, is it seems that my pump will only start when I turn it above 21 Celsius and if I ever set it lower than that it will not start no matter how cold it gets. Is there something wrong with my pump or thermostat?
It is an older thermostat (20 years probably) and my pump is pretty old as well and leaks a bit in the summer when the boiler is not turned on. The heat when turned on seals the pump to the boiler and it doesn't leak. I know the pump will eventually need to be replaced cause of this or if it stops working.
Want to know if anyone has seen this issue and if maybe just buying a new thermostat might fix it?