Greenheck IG / IGX (464104 IOM) (Pre-2009) - Manual (Page 63)

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Troubleshooting
Damper(s) not fully opened?
Adjust damper linkage(s), or replace faulty actuator(s).
Filters dirty or clogged
Clean or replace filters.
(Reference the maintenance section).
Blower speed too low?
Adjust drives as needed.
System static losses too high?
Reduce losses by improving ductwork.
Yes
Yes
Yes
Yes
No
No
No
No
No
Leaks in ductwork
Repair leaks.
Yes
Belt slipping
Replace or tighten belt.
Yes
Insufficient Airflow
Troubleshooting
Everything is working
properly, consult factory.
Yes