Amana ACV9, AMV9 Troubleshooting Chart, Symptoms of Abnormal, Fault Descriptions, Possible Causes

TROUBLESHOOTING CHART

Symptoms of Abnormal	Associated		Fault Description(s)	Possible Causes	Corrective Action	Cautions and Notes
Operation	LED Code2
• Furnace fails to operate.	NONE	• No 115 volt power to		• Manual disconnect switch	• Assure 115 and 24 volt	• Turn power OFF
• Integrated control			furnace, or no 24 volt	OFF, door switch open, or	power to furnace	prior to repair.
module diagnostic LED			power to integrated	24 volt wires improperly	integrated control	• Replace integrated
provides no signal.			control module.	connected or loose.	module.	control module
		• Blown fuse or circuit		• Blown fuse or circuit	• Check integrated control	fuse with 3A
			breaker.	breaker.	module fuse (3A).	automotive fuse.
					Replace if necessary.	• Read precautions
		• Integrated control		• Integrated control module	• Check for possible shorts	in “Electrostatic
			module has an		in 115 and 24 volt circuits.	Discharge” section
			internal fault.	has an internal fault.	Repair as necessary.	of manual.
					• Replace bad integrated
					control module.
• LED is steady ON.	ON	• Normal operation.		• Normal operation.	• None.	• Normal operation.
	CONTINUOUS
	ON
• Furnace fails to operate.		• Furnace lockout due		• Failure to establish flame.	• Locate and correct gas	• Turn power
• Integrated control	1		to an excessive	Cause may be no gas to	interruption.	OFF prior to
module diagnostic LED			number of ignition	burners, front cover	• Check front cover	repair.
is flashing ONE (1) flash.	1 FLASH		“retries” (3 total)1 .	pressure switch stuck	pressure switch
				open, bad igniter or igniter	operation (hose, wiring,
				alignment, improper	contact operation).
				orifices, or coated/oxidized	Correct if necessary.
				or improperly connected	• Replace or realign	• Igniter is
				flame sensor.
					igniter.
						fragile, handle
					• Check flame sense
				• Loss of flame after		with care.
					signal. Sand sensor if	• Sand flame
				establishment. Cause may
					coated and/or oxidized.
				be interrupted gas supply,		sensor with
					• Check flue piping for
				lazy burner flames		emery cloth.
				(improper gas pressure or	blockage, proper	• See “Vent/Flue
					length, elbows, and
				restriction in flue and/or		Pipe” section
					termination.
				combustion air piping),		for piping
					• Verify proper induced
				front cover pressure		details.
				switch opening, or	draft blower perfor-
				improper induced draft	mance.
				blower performance.
• Furnace fails to operate.		•	Pressure switch	• Induced draft blower	• Replace induced draft	• Turn power OFF
• Integrated control	2		circuit is closed.	pressure switch contacts	blower pressure	prior to repair.
module diagnostic LED		•	Induced draft	sticking.	switch.	• Replace pressure
is flashing TWO (2)	2 FLASHES		blower is not	• Shorts in pressure switch		switch with proper
flashes.			operating.	circuit.	• Repair short.	replacement part.
• Induced draft blower runs		•	Pressure switch	• Pressure switch hose	• Inspect pressure	• Turn power
continuously with no	3	•	circuit not closed.	blocked, pinched or	switch hose. Repair, if	OFF prior to
further furnace operation.			Induced draft blower	connected improperly.	necessary,	repair.
• Integrated control	3 FLASHES		is operating.	• Blocked flue and/or inlet air	• Inspect flue and/or inlet	• Replace
module diagnostic LED				pipe, blocked drain system,	air piping for blockage,	pressure
is flashing THREE (3)				or weak induced draft	proper length, elbows,	switch with
flashes.				blower.	and termination. Check	proper
					drain system. Correct	replacement
					as necessary.	part.
				• Incorrect pressure switch	• Correct pressure
					switch setpoint or
				setpoint or malfunctioning
					contact motion.
				switch contacts.
					• Tighten or correct
				• Loose or improperly
					wiring connection.
				connected wiring.

1Integrated control module will automatically attempt to reset from lockout after one hour.

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