question for HVAC guys

OK ( it has failed again btw )
How this system operates...
Calling for heat brings the blower on instantly, always has anyway. The blower continues to run for a period after the heat strips have went off.
I don't think the electric heat section should come on without the controller having a blower runs signal in place for safety reasons.

While I was typing above the blower suddenly started again. I'm starting to think its intermittent blower motor failure. In any case I'm going into that closet :(
Shadow box for access door was a great idea when I was younger.