Troubleshooting General System
Is fan pulling design load amps? Yes / No
Check for damage or material buildup on fan wheel and repair and clean.
Are belts tensioned properly? Yes / No
Is fan rotation correct? Yes / No
Is air volume at fan rated capacity? Yes / No
Is ductwork or system leaking? Yes / No
Repair leaks and check differential pressure
Retention and check differential pressure
Change motor leads and check differential pressure.
Open damper and check differential pressure.
Check for obstructions in ductwork and remove
Check differential pressure gauge for proper operation (if problem persists call)