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10.2.11 Symptom: Noise of air conditioners (Outdoor unit)
10.2.12 Symptom: Dust comes out of the unit
10.2.13 Symptom: The units can give off odours
10.2.14 Symptom: The outdoor unit fan does not spin
10.2.15 Symptom: The compressor in the outdoor unit does not stop after a short heating
operation
10.2.16 Symptom: The inside of an outdoor unit is warm even when the unit has stopped
10.2.17 Symptom: Hot air can be felt when the indoor unit is stopped
RXYSA4~6A7V/Y1B
VRV 5-S system air conditioner
4P600330-1D – 2023.02
When the tone of operating noise changes. This noise is caused by the change of
frequency.
When the unit is used for the first time in a long time. This is because dust has
gotten into the unit.
The unit can absorb the smell of rooms, furniture, cigarettes, etc., and then emit it
again.
During operation. The speed of the fan is controlled in order to optimise product
operation.
This is to prevent refrigerant from remaining in the compressor. The unit will stop
after 5 to 10 minutes.
This is because the crankcase heater is warming the compressor so that the
compressor can start smoothly.
Several different indoor units are being run on the same system. When another
unit is running, some refrigerant will still flow through the unit.
10
Troubleshooting
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Installer and user reference guide
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Table of Contents
Troubleshooting
