Operating Features And Care-Troubleshooting - Carrier 42ADF025 Manual Del Usuario

42ADF025, 42ADF035
Operating Features and Care - Troubleshooting
Operating conditions
• Temperature ranges suitable for unit operation are as follows.
MODE INDOOR
COOL 21~32°C
HEAT Max. 27°C
DRY 21~32°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.
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Troubleshooting
Trouble / Check points / Action /
OUTDOOR
Unit does not operate:
15~43°C
-10~24°C
• Has the circuit breaker tripped or the fuse blown?
RESET THE CIRCUIT BREAKER OR REPLACE THE FUSE
15~43°C
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.