We had a very strong thunderstorm last night from 8p.m. -12 a.m. and our electric furnace
controller was damaged. We tried to find out the problem and fix as talking with the
manufacture in USA on phone from 1 - 2 a.m. In the end, a little
smoke came out from the back of controller panel. So we have to send the whole
controller box to USA to get fixed.
It is very bad luck, but it happened luckily today. We would shut down our furnace from today anyway for next few month.