Lennox LGT120H4P - DIRECT DRIVE BLOWER SEQUENCE OF OPERATION; TROUBLESHOOTING; Blower Operation:; Blower Fault Sequence Direct Drive Motor - No S52:; Blower Fault Sequence Direct Drive Motor - With S52 (If Configured):


DIRECT DRIVE BLOWER SEQUENCE OF OPERATION / TROUBLESHOOTING
Blower Operation:
1 - 
2 - 

3 - 

4 - 
Blower Fault Sequence Direct Drive Motor - No S52:
1 - Line voltage is provided to B3 blower motor.
2 - 
3 - 

4 - If B3 blower motor internal relay closes continue to next step.
 
6 - 
 

1 - 
2 - 
3 - 
4 - 
 
Failure Handling/Troubleshooting:
1 - 
2 - 
3 - 󰀪
4 - 
 Observe if the blower operates or if Alarm 186 sets again.
6 - 
 