Heat Controller DMH36TB-1, DMC36TB-1 manual Troubleshooting, Case Explanation See

Maintenance and Service

Troubleshooting

Check the following points before requesting repairs or service.... If the fault persists, please contact your dealer or service center.

Case	Explanation	See page
The air conditioner does not	• Check room temperature setting?	12, 15
operate.	• Check if circuit breaker is on?	-
The room has a peculiar	• Check that this is not a damp smell exuded by	-
odor.	the walls, carpet, furniture, or cloth items in the
	room.
It seems that condensation	• Check the drain hose is connected tight or if	-
is leaking from the air	indoor unit is installed even.
conditioner.
Air conditioner does not	• This is the protector of the mechanism.
operate for about 3 minutes	• Wait about 3 minutes and operation will begin.
after turning on.	• About 3 minutes delay is applied to protect	-
	compressor from frequenty on/off.
Does not cool or heat	• Is the air filter dirty? See air filter cleaning	22
effectively.	instructions.
	• Has the temperature been set correctly?	12, 15
	• Are the indoor unit's air inlet or outlet vents	-
	obstructed?
The air conditioner	• For a noise that sounds like water flowing.
operation is noisy.	-This is the sound of refrigerant 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.
Remote Controller display is	• Are the batteries depleted?
faint, or no display at all.	• Are the batteries inserted in the opposite (+)	9
	and (-) directions?
Crack sound is heard.	• This sound is generated by the
	expansion/constriction of the front panel, etc.	-
	due to changes of temperature.

24Room Air Conditioner