Marley Engineered Products E4212-1125HFD Troubleshooting Chart, Symptom, Possible Causes

Troubleshooting Chart

SYMPTOM	POSSIBLE CAUSE(S)			CORRECTIVE ACTION
Fan inoperative	1.		Blown fuse or open circuit breaker.	1.		Replace fuse or reset circuit breaker.
	2.		Electricity turned off.	2.		Contact local power company.
	3.		Loose cord connection.	3.		Re-check all connections.
	4. Defective capacitor or motor.			4. Replace.
Excessive noise	1.		Wheel rubbing on housing.	1.		Center wheel.
	2.		Motor base or blower not securely	2.		Tighten mounting bolts.
			anchored.	3.		Replace motor.
	3.		Defective motor bearings.
Insufficient air flow	1.		Improper voltage.	1.		Reconnect to proper voltage.
	2.		Outlet louvers closed.	2.		Open.
	3.		Intakes obstructed.	3.		Remove any obstruction.
	4. Dirty blower wheels.			4. Clean.
	5.		Motor rotating in reverse direction.	5.		Reverse red and black power leads.
Fans cut out on	1.	Low voltage.		1.	Verify correct wire size.
thermal overload	2.	Obstruction to blower wheel.		2.	Remove obstruction.
(self-resets)
No heat	1.	Fuse link open.		1.	Replace with 4K4204H or 4K9204H.
	2.	Heater element broken		2.	Replace with proper Ga. and watts.
	3.	Control Transformer		3.	Replace with proper item.

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