HVAC Site - Professional HVAC Contractors Forum banner
1 - 2 of 2 Posts

·
Registered
Joined
·
1 Posts
Discussion Starter · #1 ·
had blower motor replaced per hvac contractor. did not solve problem. demand on motor but it hums. old motor bench tested okay. what tells motor to fire up. stat is okay. furnace fires up but shuts down when motor does not start
 

·
Banned
Joined
·
7 Posts
had blower motor replaced per hvac contractor. did not solve problem. demand on motor but it hums. old motor bench tested okay. what tells motor to fire up. stat is okay. furnace fires up but shuts down when motor does not start
There should be a fan relay of fan contactor that energizes the fan motor. There may be a issue with the fan relay.
 
1 - 2 of 2 Posts
Top