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Why does my circulator cycle on and off?
Air Circulators
a) The thermal protector may be tripping. Check for obstructions to airflow, voltage or excessive intake air temps. Above 104ºF. b) The wiring or control switch on the motor may be faulty. Replace or repair.
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Why is my circulator not working?
Air Circulators
a) There may be a blown fuse or breaker. Replace or repair. b) The motor or switch may be defective. Replace or repair.
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Why is my circulator so noisy?
Air Circulators
a) The propeller may be loose or damaged. Tighten or replace. b) The motor may not be secure. Tighten motor nuts.
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Why won't my oscillating circulator oscillate?
Air Circulators
a) The oscillating mechanism may not be engaged. Turn the shaft clockwise until engaged. b) The gear assembly may be defective. Replace or repair.
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My fan isn't moving as much air as I anticipated. Why?
Cabinet Exhaust
a) The duct may be blocked. Clear obstruction from duct. b) A duct may have collapsed or become perforated. Repair or replace duct section.
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Why does my fan seem to be vibrating excessively?
Cabinet Exhaust
a) There may be an accumulation of material on the wheel. Clean the wheel. b) The fan wheel may be out of balance. Replace the wheel.
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Why is my fan not working?
Cabinet Exhaust
a) There may be a blown fuse or breaker. Replace or repair. b) Motor may be defective. Replace or repair. c) Fan my be incorrectly wired. Shut power OFF and check wiring for proper connections.
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Why is my motor overloading and shutting off?
Cabinet Exhaust
a) You may have the incorrect voltage input. Correct to 115 Volt. b) The motor may have a shorted motor winding. Replace the motor. c) There may be a build up of dust, dirt or other contaminants on the motor. Clean the motor.
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My fan isn't moving as much air as I anticipated. Why?
Ceiling Exhaust
a) The duct may be blocked. Clear obstruction from duct. b) A duct may have collapsed or become perforated. Repair or replace duct section.
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Why does my fan seem to be vibrating excessively?
Ceiling Exhaust
a) There may be an accumulation of material on the wheel. Clean the wheel. b) The fan wheel may be out of balance. Replace the wheel.
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Why is my fan not working?
Ceiling Exhaust
a) There may be a blown fuse or breaker. Replace or repair. b) Motor may be defective. Replace or repair. c) Fan my be incorrectly wired. Shut power OFF and check wiring for proper connections.
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Why is my motor overloading and shutting off?
Ceiling Exhaust
a) You may have the incorrect voltage input. Correct to 115 Volt. b) The motor may have a shorted motor winding. Replace the motor. c) There may be a build up of dust, dirt or other contaminants on the motor. Clean the motor.
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My fan isn't moving as much air as I anticipated. Why?
Direct Drive Wall/Window Exhaust Fan
a) The duct may be blocked. Clear obstruction from duct. b) A duct may have collapsed or become perforated. Repair or replace duct section.
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Why does my fan seem to be vibrating excessively?
Direct Drive Wall/Window Exhaust Fan
a) There may be an accumulation of material on the wheel. Clean the wheel. b) The fan wheel may be out of balance. Replace the wheel.
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Why is my fan not working?
Direct Drive Wall/Window Exhaust Fan
a) There may be a blown fuse or breaker. Replace or repair. b) Motor may be defective. Replace or repair. c) Fan my be incorrectly wired. Shut power OFF and check wiring for proper connections.
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Why is my motor overloading and shutting off?
Direct Drive Wall/Window Exhaust Fan
a) You may have the incorrect voltage input. Correct to 115 Volt. b) The motor may have a shorted motor winding. Replace the motor. c) There may be a build up of dust, dirt or other contaminants on the motor. Clean the motor.
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Why is my ventilator so noisy?
Downblast Exhaust - Belt Drive
a) The bearings may be loose or defective. Tighten or replace bearings. b) There may be foreign material inside your bearings. Replace bearings. c) The motor pulley and/or fan pulley is not tightened on the shaft. Check alignment and tighten setscrews and/or bushings. d) The wheel may be improperly aligned and rubbing. Center wheel on inlet. e) The belt tension may be too loose or too tight. Adjust belt tension. f) Belts may be worn, oily or dirty. Clean or replace belts. g) The pulleys may not be aligned correctly. Re-align pulleys. h) There may be foreign objects in wheel or housing. Remove, check for damage or unbalance. i) The wheel may be out of balance caused by excessive dirt and grease buildup. Clean wheel to remove buildup or replace if necessary. j) Your ventilator base may not be securely anchored. Secure your ventilator properly. k) The motor hood may be loose and rattling. Tighten acorn nuts to secure motor hood.
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Why is my motor overloading and shutting off?
Downblast Exhaust - Belt Drive
a) The wheel RPM may be too high. Check that the drives are correct, increase turns open on VP pulley. b) The motor may have a shorted motor winding. Replace motor. c) The wheel may be rotating in the wrong direction. Check that motor is wired correctly. d) The power source may be over/under line voltage. Contact your local power company. e) The belt may be slipping. Tighten belt, match belt to pulley.
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My ventilator isn't moving as much air as I anticipated. Why?
Downblast Exhaust - Belt Drive
a) The system resistance could be too high. Check system for proper operation of backdraft or control dampers or obstruction in duct work. b) The wheel may be running backwards. Correct rotation. c) There may be a damper that is closed. Inspect and repair damper. d) The wheel speed may be too slow. Check that drive combination is correct, adjust VP pulleys to less turns open. e) The duct sections may be loose fitting permitting air loss. Check for secure connection where duct sections are joined. If necessary, use duct tape at seams for sealed closure.
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Why is my exhaust ventilator not working?
Downblast Exhaust - Belt Drive
a) You may have a blown fuse or breaker. Replace or repair. b) Motor may be defective. Replace or repair. c) Ventilator may be incorrectly wired. Shut power OFF and check wiring for proper connections. d) The pulleys may be out of alignment or loose. Check alignment and tighten. e) The belts may be broken. Replace belts. f) The electricity may be turned off. Contact local power company.
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My ventilator isn't moving as much air as I anticipated. Why?
Downblast Exhaust - Direct Drive
a) The system resistance could be too high. Check system for proper operation of backdraft or control dampers or obstruction in duct work. b) The wheel may be running backwards. Correct rotation. c) There may be a damper that is closed. Inspect and repair damper. d) Your duct sections may be loose fitting permitting air loss. Check for secure connection where duct sections are joined. If necessary, use duct tape at seams for sealed closure.
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Why is my exhaust ventilator not working?
Downblast Exhaust - Direct Drive
a) You may have a blown fuse or breaker. Replace or repair. b) Motor may be defective. Replace or repair. c) Ventilator may be incorrectly wired. Shut power OFF and check wiring for proper connections. d) The electricity may be turned off. Contact local power company.
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Why is my motor overloading and shutting off?
Downblast Exhaust - Direct Drive
a) The motor may have a shorted motor winding. Replace motor. b) The wheel may be rotating in the wrong direction. Check that motor is wired correctly. c) The power source may be over/under line voltage. Contact your local power company.
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Why is my ventilator so noisy?
Downblast Exhaust - Direct Drive
a) The wheel may be improperly aligned and rubbing. Center wheel on inlet. b) There may be foreign objects in wheel or housing. Remove, check for damage or unbalance. c) The wheel may be out of balance caused by excessive dirt and grease buildup. Clean wheel to remove buildup or replace if necessary. d) The ventilator base may not be securely anchored. Secure your ventilator properly. e) The motor hood may be loose and rattling. Tighten acorn nuts to secure motor hood.
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Why is my motor overloading and shutting off?
Inline Belt Drive
a) The wheel RPM may be too high. Check that the drives are correct, increase turns open on VP pulley. b) The motor may have a shorted motor winding. Replace motor. c) The wheel may be rotating in the wrong direction. Check that motor is wired correctly. d) The power source may be over/under line voltage. Contact your local power company. e) The belt may be slipping. Tighten belt, match belt to pulley.
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My blower isn't moving as much air as I anticipated. Why?
Inline Belt Drive
a) Your system resistance could be too high. Check system for proper operation of backdraft or control dampers or obstruction in duct work. b) The blower wheel may be running backwards. Correct, rotation should be clockwise and correspond to the rotation decal found on the unit. c) You may have excessive buildup of material on your wheel. Clean wheel. d) The wheel may be improperly aligned. Center wheel on inlet.
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Why is my blower so noisy?
Inline Belt Drive
a) The bearings may be loose or defective. Tighten or replace bearings. b) There may be foreign material inside your bearings. Replace bearings. c) The motor pulley and/or fan pulley may not be tightened on the shaft. Check alignment and tighten setscrews and/or bushings. d) The wheel may be improperly aligned and rubbing. Center wheel on inlet. e) The belt tension may be too loose or too tight. Adjust belt tension. f) Belts may be worn, oily or dirty. Clean or replace belts. g) The pulleys may not be aligned correctly. Re-align pulleys. h) There may be foreign objects in wheel or housing. Remove, check for damage or unbalance. i) The wheel may be out of balance caused by excessive dirt and grease buildup. Clean wheel to remove buildup.
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Why is my in-line duct blower not working?
Inline Belt Drive
a) You may have a blown fuse or breaker. Replace or repair. b) Motor may be defective. Replace or repair. c) Fan my be incorrectly wired. Shut power OFF and check wiring for proper connections. d) The pulleys may be out of alignment or loose. Check alignment and tighten. e) The electricity may be turned off. Contact local power company.
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Why is my motor overloading and shutting off?
Inline Direct Drive
a) The wheel RPM may be too high. Check that the drives are correct, increase turns open on VP pulley. b) The motor may have a shorted motor winding. Replace motor. c) The wheel may be rotating in the wrong direction. Check that motor is wired correctly. d) The power source may be over/under line voltage. Contact your local power company. e) The belt may be slipping. Tighten belt, match belt to pulley.
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My blower isn't moving as much air as I anticipated. Why?
Inline Direct Drive
a) Your system resistance could be too high. Check system for proper operation of backdraft or control dampers or obstruction in duct work. b) The blower wheel may be running backwards. Correct, rotation should be clockwise and correspond to the rotation decal found on the unit. c) You may have excessive buildup of material on your wheel. Clean wheel. d) The wheel may be improperly aligned. Center wheel on inlet.
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Why is my blower so noisy?
Inline Direct Drive
a) The bearings may be loose or defective. Tighten or replace bearings. b) There may be foreign material inside your bearings. Replace bearings. c) The motor pulley and/or fan pulley may not be tightened on the shaft. Check alignment and tighten setscrews and/or bushings. d) The wheel may be improperly aligned and rubbing. Center wheel on inlet. e) The belt tension may be too loose or too tight. Adjust belt tension. f) Belts may be worn, oily or dirty. Clean or replace belts. g) The pulleys may not be aligned correctly. Re-align pulleys. h) There may be foreign objects in wheel or housing. Remove, check for damage or unbalance. i) The wheel may be out of balance caused by excessive dirt and grease buildup. Clean wheel to remove buildup.
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Why is my in-line duct blower not working?
Inline Direct Drive
a) You may have a blown fuse or breaker. Replace or repair. b) Motor may be defective. Replace or repair. c) Fan my be incorrectly wired. Shut power OFF and check wiring for proper connections. d) The pulleys may be out of alignment or loose. Check alignment and tighten. e) The electricity may be turned off. Contact local power company.
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Why does my circulator cycle on and off?
Mobile Air Circulators
a) The thermal protector may be tripping. Check for obstructions to airflow, voltage or excessive intake air temps. Above 104ºF. b) The wiring or control switch on the motor may be faulty. Replace or repair.
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Why is my circulator not working?
Mobile Air Circulators
a) There may be a blown fuse or breaker. Replace or repair. b) The motor or switch may be defective. Replace or repair.
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Why is my circulator so noisy?
Mobile Air Circulators
a) The propeller may be loose or damaged. Tighten or replace. b) The motor may not be secure. Tighten motor nuts.
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Why won't my oscillating circulator oscillate?
Mobile Air Circulators
a) The oscillating mechanism may not be engaged. Turn the shaft clockwise until engaged. b) The gear assembly may be defective. Replace or repair.
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My fan isn't moving as much air as it should. What do I do?
Sidewall Propeller Fans
a) Check to make sure the belt is positioned properly. If belt is slipping, adjust tension and match belt to pulley. b) Verify that the damper is open. c) Check that the drive combination is correct.
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Why is my fan moving more air than I anticipated?
Sidewall Propeller Fans
You may have miscalculated your system's static pressure. Check calculation and adjust pulleys to more turns open.
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Why is my fan not working?
Sidewall Propeller Fans
a) There may be a blown fuse or breaker. Replace or repair. b) Motor may be defective. Replace or repair. c) Fan my be incorrectly wired. Shut power OFF and check wiring for proper connections. d) The pulleys may be out of alignment or loose. Check alignment and tighten. e) The electricity may be turned off. Contact local power company.
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Why is my fan so noisy?
Sidewall Propeller Fans
a) The bearings may be loose or defective. Tighten or replace bearings. b) There may be foreign material inside your bearings. Replace bearings. c) The motor pulley and/or fan pulley is not tightened on the shaft. Check alignment and tighten setscrews and/or bushings. d) The propeller may be loose. Tighten set screws or taper bushing screws. e) The belt tension may be too loose or too tight. Adjust belt tension. f) Belts may be worn, oily or dirty. Clean or replace belts. g) The pulleys may not be aligned correctly. Re-align pulleys. h) The propeller may be crooked or damaged. Replace propeller. i) The fan may not be securely anchored to the wall. Secure properly. j) The fan shaft may be bent. Replace shaft and propeller. k) The fan propeller may be out of balance. Replace propeller.
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Why is my fan supplying air rather than exhausting? Or vice versa?
Sidewall Propeller Fans
a) The propeller rotation may be reversed. Reverse motor rotation by rewiring the motor. b) The fan may have the incorrect propeller. Verify pitch of prop is correctly positioned for the application.
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Why is my motor overloading and shutting off?
Sidewall Propeller Fans
a) The propeller RPM may be too high. Check that the drives are correct, increase turns open on VP pulley. b) The motor may have a shorted motor winding. Replace motor. c) The propeller may be rotating in the wrong direction. Check that motor is wired correctly. d) The power source may be over/under line voltage. Contact your local power company. e) The belt may be slipping. Tighten belt, match belt to pulley.
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Why is my motor overloading and shutting off?
Supply Fan
a) The wheel RPM may be too high. Check that the drives are correct, increase turns open on VP pulley. b) The motor may have a shorted motor winding. Replace motor. c) The wheel may be rotating in the wrong direction. Check that motor is wired correctly. d) The power source may be over/under line voltage. Contact your local power company. e) The belt may be slipping. Tighten belt, match belt to pulley.
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My ventilator isn't moving as much air as I anticipated. Why?
Supply Fan
a) The system resistance could be too high. Check system for proper operation of backdraft or control dampers or obstruction in duct work. b) The wheel may be running backwards. Correct rotation. c) There may be a damper that is closed. Inspect and repair damper. d) The wheel speed may be too slow. Check that drive combination is correct, adjust VP pulleys to less turns open. e) The duct sections may be loose fitting permitting air loss. Check for secure connection where duct sections are joined. If necessary, use duct tape at seams for sealed closure.
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Why is my exhaust ventilator not working?
Supply Fan
a) You may have a blown fuse or breaker. Replace or repair. b) Motor may be defective. Replace or repair. c) Fan my be incorrectly wired. Shut power OFF and check wiring for proper connections. d) The pulleys may be out of alignment or loose. Check alignment and tighten. e) The belts may be broken. Replace belts. f) The electricity may be turned off. Contact local power company.
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Why is my ventilator so noisy?
Supply Fan
a) The bearings may be loose or defective. Tighten or replace bearings. b) There may be foreign material inside your bearings. Replace bearings. c) The motor pulley and/or fan pulley is not tightened on the shaft. Check alignment and tighten setscrews and/or bushings. d) The wheel may be improperly aligned and rubbing. Center wheel on inlet. e) The belt tension may be too loose or too tight. Adjust belt tension. f) Belts may be worn, oily or dirty. Clean or replace belts. g) Your pulleys may not be aligned correctly. Re-align pulleys. h) There may be foreign objects in wheel or housing. Remove, check for damage or unbalance. i) The wheel may be out of balance caused by excessive dirt and grease buildup. Clean wheel to remove buildup or replace if necessary. j) The ventilator base may not be securely anchored. Secure your ventilator properly.
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Why is my motor overloading and shutting off?
Upblast Exhaust - Belt Drive
a) The wheel RPM may be too high. Check that the drives are correct, increase turns open on VP pulley. b) The motor may have a shorted motor winding. Replace motor. c) The wheel may be rotating in the wrong direction. Check that motor is wired correctly. d) The power source may be over/under line voltage. Contact your local power company. e) The belt may be slipping. Tighten belt, match belt to pulley.
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My ventilator isn't moving as much air as I anticipated. Why?
Upblast Exhaust - Belt Drive
a) The system resistance could be too high. Check system for proper operation of backdraft or control dampers or obstruction in duct work. b) The wheel may be running backwards. Correct rotation. c) There may be a damper that is closed. Inspect and repair damper. d) The wheel speed may be too slow. Check that drive combination is correct, adjust VP pulleys to less turns open. e) The duct sections may be loose fitting permitting air loss. Check for secure connection where duct sections are joined. If necessary, use duct tape at seams for sealed closure.
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Why is my exhaust ventilator not working?
Upblast Exhaust - Belt Drive
a) You may have a blown fuse or breaker. Replace or repair. b) Motor may be defective. Replace or repair. c) Ventilator may be incorrectly wired. Shut power OFF and check wiring for proper connections. d) The pulleys may be out of alignment or loose. Check alignment and tighten. e) The belts may be broken. Replace belts. f) The electricity may be turned off. Contact local power company.
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Why is my ventilator so noisy?
Upblast Exhaust - Belt Drive
a) The wheel may be improperly aligned and rubbing. Center wheel on inlet. b) There may be foreign objects in wheel or housing. Remove, check for damage or unbalance. c) The wheel may be out of balance caused by excessive dirt and grease buildup. Clean wheel to remove buildup or replace if necessary. d) The ventilator base may not be securely anchored. Secure your ventilator properly. e) The motor hood may be loose and rattling. Tighten acorn nuts to secure motor hood.
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Why is my motor overloading and shutting off?
Utility Fans
a) The wheel RPM may be too high. Check that the drives are correct, increase turns open on VP pulley. b) The motor may have a shorted motor winding. Replace motor. c) The wheel may be rotating in the wrong direction. Check that motor is wired correctly. d) The power source may be over/under line voltage. Contact your local power company. e) The belt may be slipping. Tighten belt, match belt to pulley.
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My blower isn't moving as much air as I anticipated. Why?
Utility Fans
a) The system resistance could be too high. Check system for proper operation of backdraft or control dampers or obstruction in duct work. b) Your blower wheel may be running backwards. Correct, rotation should be clockwise and correspond to the rotation decal found on the unit. c) You may have excessive buildup of material on your wheel. Clean wheel. d) The wheel may be improperly aligned. Center wheel on inlet. e) Your blower speed may be too slow. Check that drive combination is correct, adjust VP pulleys to less turns open.
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Why is my blower moving more air than I anticipated?
Utility Fans
a) You may have miscalculated your system's static pressure. Check calculation and adjust pulleys to more turns open. b) Your blower speed may be too high. Adjust motor sheave to decrease fan speed. c) Your duct work may be the wrong size. Resize duct work - access doors, filters, grilles not installed.
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Why is my blower not working?
Utility Fans
a) There may be a blown fuse or breaker. Replace or repair. b) Motor may be defective. Replace or repair. c) Fan my be incorrectly wired. Shut power OFF and check wiring for proper connections. d) The pulleys may be out of alignment or loose. Check alignment and tighten. e) The belts may be broken. Replace belts. f) The electricity may be turned off. Contact local power company.
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Why is my blower so noisy?
Utility Fans
a) Your bearings may be loose or defective. Tighten or replace bearings. b) There may be foreign material inside your bearings. Replace bearings. c) The motor pulley and/or fan pulley is not tightened on the shaft. Check alignment and tighten setscrews and/or bushings. d) The wheel may be improperly aligned and rubbing. Center wheel on inlet. e) The belt tension may be too loose or too tight. Adjust belt tension. f) Belts may be worn, oily or dirty. Clean or replace belts. g) The pulleys may not be aligned correctly. Re-align pulleys. h) There may be foreign objects in wheel or housing. Remove, check for damage or unbalance. i) The wheel may be out of balance caused by excessive dirt and grease buildup. Clean wheel to remove buildup. j) The motor, motor base or blower may not be securely anchored. Secure properly.
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