Heat Controller DMC24CA-1, DMC36CA-1 manual Troubleshooting

Maintenance and Service

Troubleshooting

Check the following points before requesting repairs or service.... If the malfunction persist, please contact your

dealer.

Case

Explanation

See page

The air conditioner does not	• Have you made a mistake in timer operation?	13
operate.	• Has the fuse blown or has the circuit breaker	-
	been tripped?
The room has a peculiar odor.	• Check that this is not a damp smell exuded by		-
	the walls, carpet, furniture or cloth items in the
	room.
It seems that condensation is	• Condensation occurs when the airflow from the
			-
leaking from the air conditioner.	air conditioner cools the warm room air.
Air conditioner does not operate	• This is the protector of the mechanism.
for about 3 minutes when restart.	• Wait about three minutes and operation will		-
	begin.
Does not cool or heat effectively.	• Is the air filter dirty? See air filter cleaning
			24
	instructions.
	• The room may have been very hot when the
	room air conditioner was first turned on. Allow
	time for it to cool down.
	• Has the setting temperature been set incorrectly?
			15, 17
	• Are the indoor unit's air inlet or outlet vents
			-
	obstructed?
The air conditioner operation is	• For a noise that sounds like water flowing.
noisy.	-This is the sound of freon flowing inside the air
	conditioner unit.
	• For a noise that sounds like the compressed air		-
	releasing into atmosphere.
	-This is the sound of the dehumidifying water
	being processed inside the air conditioning unit.
Crack sound is heard.	• This sound is generated by the
	expansion/contraction of the inlet grille, etc. due
	to changes of temperature.
Remote control display is faint, or	• Has the circuit breaker been tripped?
no display at all.	• Are the batteries inserted in the opposite (+) and
	(-) directions?

26Cassette- Type Air Conditioner