Rank: Wiz
Rating: 77%, 4370 votes
Depends where the 'BigBang'was located.
Taking the interior light out and replacing it then a bank seems to suggest the bulb had met its end.
Take bulb out again to see if it is sooted up- be careful in case the envelope is cracked or shattered.
Check the mains fuse in the plug
Move the Thermostat up to full and listen for the unit to fire up.
What did you get?