Bedienungsanleitung Carrier 42ADF035 (Seite 18 von 35) (Englisch, Holländisch)

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Operating Features and Care - Troubleshooting

Operating conditions

• Temperature ranges suitable for unit operation are as follows.

MODE INDOOR OUTDOOR

COOL 21~32°C 15~43°C

HEAT Max. 27°C -10~24°C

DRY 21~32°C 15~43°C

• If the unit operates beyond max. temperature conditions for a long

time, system diagnostics may detect a malfunction and the unit

will not operate properly.

• If the unit operates for a long time under abnormal conditions with

extremely high humidity, condensed water may drip from the unit.

Time delay

• If you start operation after the power is turned off, there will be a

3 minute time delay until the compressor turns on.

• When heating operation starts, hot air delivery might be delayed

due to a warm-up period.

Minimum operation time

• In normal operation, there is a minimum operation time of 3

minutes between the compressor turning on and turning back off.

Heating features

• If the unit starts in heating mode, there will be a preheating period

before the unit is ready to deliver warm air.

• If the outdoor temperature is low, heating capacity will be

reduced. If the room air is not warm enough during severe winter

conditions, use additional heating devices.

Defrost operation

• In heating mode, if the outdoor coil is frosted, the indoor fan

and outdoor fan will turn off while the compressor will turn on to

remove the frost on the outdoor coil.

• The system will automatically revert to normal operation when

frost is removed from the outdoor unit.

Auto recovery

• If the power fails while the unit is operating, the unit memorizes

the operating condition, and it will start operation automatically

when the power is restored or turn off, depending on the

conﬁguration of the unit control.

Indoor unit frost prevention

If the unit operates at a low ambient temperature, frost may appear

on the indoor coil. If the indoor coil temperature is near 0°C, the

microcomputer reduces or stops the compressor’s speed to protect

the unit from frost.

Normal operation

Any of the following can occur during normal operation:

• A gurgling noise can sometimes be heard during operation or

when the unit stops.

- This is the sound of the refrigerant ﬂowing through the unit.

• Bad odours can come from the unit.

- Odours such as smoke or cosmetics can accumulate while room

air circulates through the unit.

- Cleaning the ﬁlters will reduce this problem.

• The outdoor fan does not rotate during heating operation.

(For heat pump models only).

- The unit is in defrost mode.

• A crackling sound can sometimes be heard during operation or

when the unit turns on.

- It is the sound of plastic expanding due to an abrupt

temperature change.

Troubleshooting

Trouble / Check points / Action /

Unit does not operate:

• Has the circuit breaker tripped or the fuse blown?

RESET THE CIRCUIT BREAKER OR REPLACE THE FUSE

WITH THE SPECIFIED REPLACEMENT FUSE.

• Has there been a power failure?

RESTART OPERATION WHEN THE POWER IS RESTORED.

• Does the green light or the orange light ﬂash on and off?

CALL YOUR SERVICE REPRESENTATIVE.

• Is the voltage too low?

CONFIRM THE AVAILABLE VOLTAGE.

Cooling is abnormally low:

• Is the ﬁlter blocked with dust?

CLEAN THE AIR FILTER.

• Has the temperature been set properly?

CHECK AND RESET IT IF NECESSARY.

• Are the windows or doors open?

CLOSE THE WINDOWS AND DOORS.

• Is anything obstructing the outdoor unit?

REMOVE THE OBSTRUCTION.

• Is the fan speed too low?

CHANGE THE FAN SPEED SELECTION.

• Is the operation mode FAN or AUTO?

CHANGE TO COOLING OPERATION OR RESET

Heating is abnormally low :

• Is the ﬁlter blocked with dust?

CLEAN THE AIR FILTER.

• Has the temperature been set too low?

CHECK AND RESET IT IF NECESSARY.

• Are the windows or doors open?

CLOSE THE WINDOWS AND DOORS.

• Is anything obstructing the outdoor unit?

REMOVE THE OBSTRUCTION.

Unit stops during operation:

• Is the OFF timer operating?

RESTART THE OPERATING MODE.

• Does the green light or the orange light ﬂash on and off?

CALL YOUR SERVICE REPRESENTATIVE.

ATTENTION:

If the above actions do not correct the problem, consult the dealer

from whom you bought the unit.

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