Goodmans DSX, GSZ, ASZ, SSX, ASX, DSZ, GSX, SSZ manual Chart from Previous

CHART CONTINUED FROM PREVIOUS PAGE.

				Troubleshooting Chart for ECM Variable Speed Air Circulator Blower Motors
		Symptom		Fault Description(s)	Possible Causes	Corrective Action	Cautions and Notes
						- Check low voltage (Thermostat)	- Turn power OFF prior to repair.
				- Stays at low CFM despite	- 24 Vac wires miswired or loose.	wires and connections.	Wait 5 minutes after
						- Verify fan is not in delay mode -	disconnecting power before
				system call for cool	- "R" missing/not connected at motor.
						wait until delay complete.	opening motor.
				or heat CFM.	- Fan in delay mode.
						- Perform motor/control replacement	- Handle electronic motor/control
						check, ECM motors only.	with care.
	- Motor starts,
							- Turn power OFF prior to repair.
		but runs				- Is fan in delay mode? - wait until delay time complete.	Wait 5 minutes after
		erratically.			- "R" missing/not connected at motor.		disconnecting power before
				- Stays at high CFM.		- Perform motor/control replacement check, ECM
					- Fan in delay mode.		opening motor.
						motors only.
							- Handle electronic motor/control
							with care.
				- Blower won't shut off.	- Current leakage from controls	- Check for Triac switched t'stat	- Turn power OFF prior to repair.
					into G, Y, or W.	or solid state relay.
					- High static creating high blower speed.	- Check/replace filter.
					- Incorrect supply or return ductwork.
				- Air noise.		- Check/correct duct restrictions.	- Turn power OFF prior to repair.
					- Incorrect or dirty filter(s).
						- Adjust to correct blower speed setting.
					- Incorrect blower speed setting.
					- Loose blower housing, panels, etc.	- Check for loose blower housing,
	- Excessive				- High static creating high blower	panels, etc.	- Turn power OFF prior to repair.
				- Noisy blower or cabinet.	speed.	- Check for air whistling thru seams in
		noise.			- Air leaks in ductwork, cabinets,	ducts, cabinets or panels.
					or panels.	- Check for cabinet/duct deformation.
					- High static creating high blower speed.	- Does removing panel or filter
						reduce "puffing"?
				- "Hunts" or "puffs" at	- Incorrect or dirty filter(s).		- Turn power OFF prior to repair.
						- Check/replace filter.
				high CFM (speed).	- Incorrect supply or return ductwork.
						- Check/correct duct restrictions.
					- Incorrect blower speed setting.
						- Adjust to correct blower speed setting.
							- Turn power OFF prior to repair.
				- Motor failure or			Wait 5 minutes after
	- Evidence of			malfunction has	- Moisture in motor/control module.	- Replace motor and perform	disconnecting power before
		Moisture.		occurred and moisture		Moisture Check.*	opening motor.
				is present.			- Handle electronic motor/control
							with care.
		*Moisture Check	oriented "down" (or as recommended by equipment manufacturer).			- Arrange harnesses with "drip loop" under motor.
		- Connectors are
		- Is condensate drain plugged?				- Check for low airflow (too much latent capacity).
		- Check for undercharged condition.				- Check and plug leaks in return ducts, cabinet.
		Note: You must use the correct replacement control/motor module since they are factory programmed for specific operating modes. Even though they look alike, different modules may have completely different
45		functionality. The ECM variable speed motors are c
		Important Note: Using the wrong motor/control module voids all product warranties and may produce unexpected results.

SERVICING