We have a 2005 Monterey 36' coach with a C9
the block heater plugs in under the bed
the receptacle went bad so I replaced it with another new gfi
Now there is still no heat being made
I checked the plug with a 1500 watt hair dryer to make sure there was no issue there, power is there
I am looking to find out where the block heater is located and if it requires draining out the engine coolant for a replacement or if there is another thing that could be the problem