Items To Be Checked First - Samsung AC052FBMDEH/EU Service Manual

4-4 Iterms to be checked first
1. The input voltage should be rating voltage ±10% range.
The air conditioner may not operate properly if the voltage is out of this range.
2. Is the link cable linking the indoor unit and the outdoor unit linked properly?
The indoor unit and the outdoor unit shall be linked by 4 cables.
Check the terminals if the indoor unit and outdoor unit are properly linked by the same number of cables.
Otherwise the air conditioner may not operate properly.
3. When a problem occurs due to the contents illustrated in the table below it is a symptom not related to the
malfunction of the air conditioner.
No
1 In a COOL operation mode, the compressor does not
operate at a room temperature higher than the setting
temperature that the INDOOR FAN should operate.
[In case of heat pump model]
In a HEAT operation mode, the compressor does not
operate at a room temperature lower than the setting
temperature that indoor fan should operate.
2 Compressor stops operation intermittently in
DRY( ) mode.
3 [In case of heat pump model]
Compressor of the outdoor unit is operating although
it is turned off in a HEAT mode.
4 [In case of heat pump model]
The compressor and indoor fan stop intermittently
in HEAT mode.
5 [In case of heat pump model]
Indoor fan and outdoor fan stop operation
intermittently in a HEAT mode.
4-9
Operation of air conditioner Explanation
In happens after a delay of 3 minutes when the
compressor is reoperated.
The same phenomenon occurs when a power is
on.
As a phenomenon that the compressor is
reoperated after a delay of 3 minutes, the
indoor fan is adjusted automatically with
reference to a temperature of the air blew.
Compressor operation is controlled automatically
in DRY mode depending on the room temperature
and humidity.
When the unit is turned off while de-ice is
activated, the compressor continues operation
for up to 12 minutes(maximum) until the deice
is completed.
The compressor and indoor fan stop intermittently
if room temperature exceeds a setting
temperature in order to protect the compressor
from overheated air in a HEAT mode.
The compressor operates in a reverse cycle to
remove exterior ice in a HEAT mode, and
indoor fan and outdoor fan do not operate
intermittently for within 20% of the total heater
operation.
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