Panasonic CU-KS12NK1A, CU-KS18NKUA Troubleshooting, Operating Range, Wired Remote Controller

TROUBLESHOOTING

(BEFORE CALLING FOR SERVICE)

If your air conditioner does not work properly, first check the following points before requesting service. If it still does not work properly, contact your dealer or service center.

Trouble	Possible Cause		Remedy
Air conditioner does	1. Power failure.	1.	Restore power.
not run at all.	2. Leakage circuit	2.	Contact service
	breaker tripped.		center.
	3. Line voltage is too	3.	Consult your
	low.		electrician or
			dealer.
	4. Batteries in remote	4.	Replace batteries.
	controller have run
	down.
OPERATION lamp	Trouble in system.	Contact service
blinks and air		center.
conditioner does not
operate.
Compressor runs but	Obstruction in front of	Remove obstruction.
soon stops.	condenser coil.
	(Outdoor Unit)
Poor cooling	1. Dirty or clogged air	1.	Clean air filter to
performance.	filter.		improve airflow.
	2. Heat source or	2.	Eliminate heat
	many people in		source if possible.
	room.
	3. Doors and/or	3.	Shut them to keep
	windows are open.		the heat out.
	4. Obstacle near air	4.	Remove it to ensure
	intake or air		good airflow.
	discharge port.
	5. Thermostat is set	5.	Set the temperature
	too high for cooling.		lower.
Clicking sound is	In cooling operation,	This is normal, and
heard from the air	any plastic parts may	the sound will soon
conditioner.	shrink due to a	disappear.
	sudden temperature
	change. In this event,
	a clicking sound may
	occur.
OPERATION lamp	The use of cellular	1.	Turn off the power
lights but outdoor unit	phones near the air		then restart the air
will not run.	conditioner may cause		conditioner after a
	disturbance to its		while.
	normal operation.	2.	Consult your dealer.
TIMER lamp blinks	FLOAT SWITCH is	Contact service
(3 sec. interval) and	actived.	center.
air conditioner does
not operate.

OPERATING RANGE

The air conditioner is operable within the temperature ranges as listed below:

For Cooling Only Models : CU-KS18NKU

	Temperature	Indoor air		Outdoor air
		temperature		temperature
COOLING	Max.	95	°F DB /	115 °F DB
		71	°F WB
	Min.	67	°F DB /	67 °F DB
		57	°F WB
For Low Ambient Cooling Models : CU-KS12NK1A, CU-KS18NKUA
	Temperature	Indoor air		Outdoor air
		temperature		temperature
COOLING	Max.	95	°F DB /	115 °F DB
		71	°F WB
	Min.	67	°F DB /	0 °F DB
		57	°F WB

For Cooling Only Models : CU-3KS19NBU, CU-4KS24NBU, CU-4KS31NBU

	Temperature	Indoor air		Outdoor air
		temperature		temperature
COOLING	Max.	95	°F DB /	115 °F DB
		71	°F WB
	Min.	67	°F DB /	14 °F DB
		57	°F WB

WIRED REMOTE CONTROLLER

Aseparately sold wired remote controller (CZ-RD515U) used with this air conditioner is also available. If you wish to use the wired remote control function, you will need to purchase the optional wired remote controller.

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