Greenheck IGK (472084) - Manual (Page 11)

11 Model IGK Make-Up Air
®
No
Blower Does Not Operate
24 VAC between
terminals R and X?
Check Main Voltage
(See Blower Start-Up Step #1)
Main Disconnect (DS1) Off
(Turn Main Disconnect DS1 On)
Unit control transformer (TR1) fault
(Replace transformer TR1)
24 VAC between
terminals G and X?
Optional supply switch (S2) open or not wired
(Close, install or replace supply switch)
24 VAC between
ST1 OL terminal 96 and X?
Supply fan overload (ST1 OL) tripped
(Reset and check motor amps, reference Blower Start-Up #4)
Yes
Yes
No
No
No
No
Yes
Yes
Yes
Everything is working properly,
consult the factory.
Defective motor
or capacitor?
Broken fan belt?
Replace
(Reference Maintenance section)
Repair or Replace
Troubleshooting