I have a problem that my home heating system is not working.It was working on one day and then heard a blast sound and when we checked the switch where you turn on & off ,it has no power.
The main power has all switches on so the fuse on the main switch hasnt gone and its only the switch on the heater that doesnt have power.
Can you help ?? and if should i repair or buy a new one.

sanjay, October 2009