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Troubleshooting
Installer and user reference guide
43
EKVDX32~100A2VEB
VRV system air conditioner
4P664010-1 – 2021.08
Malfunction
Measure
The system operates but
cooling or heating is
insufficient.
▪
Check if air inlet or outlet of outdoor or indoor
unit is not blocked by obstacles. Remove any
obstacles and make sure the air can flow freely.
▪
On the EKVDX unit, check the temperature setting
with settings 14(24)-10 and -11.
▪
Check if the fan speed setting is set to low speed
and increase to high speed. Refer to the manual of
the user interface.
▪
Check for open doors or windows. Close doors and
windows to prevent wind from coming in.
▪
Check if direct sunlight enters the room. Use
curtains or blinds.
▪
Check if there are too many occupants in the room
during cooling operation. Check if the heat source
of the room is excessive.
▪
If the heat source of the room is excessive (when
cooling). Cooling effect decreases if heat gain of
the room is too large.
Operation stops suddenly
(operation lamp blinks.)
Check if air inlet or outlet of outdoor or indoor unit
is not blocked by obstacles. Remove any obstacles,
turn the breaker OFF and back ON. If the lamp still
blinks, contact your dealer.
An abnormal function
happens during operation.
The air conditioner may malfunction because of
lightning or radio waves. Turn the breaker OFF and
back ON.
In this chapter
10.1 Symptoms that are NOT system malfunctions
The following symptoms are NOT system malfunctions:
10.1.1 Symptom: The system does not operate
▪
The air conditioner does not start immediately after the ON/OFF button on the
user interface is pressed. If the operation lamp lights, the system is in normal
condition. To prevent overloading of the compressor motor, the air conditioner
starts 5 minutes after it is turned ON again in case it was turned OFF just before.
The same starting delay occurs after the operation mode selector button was
used.