Symptoms That Are Not Faults; Troubleshooting - EAS Electric VRV Installation And Owner's Manual

14. Symptoms That Are Not Faults

The following symptoms may be experienced during the normal
operation of the unit and are not considered faults. Note: If you are not
sure whether a fault has occurred, contact your supplier or service
engineer immediately.
Symptom 1: The unit will not run
Symptom: When the ON/OFF button on the remote controller is

pressed, the unit does not immediately start running.
Cause: to protect certain system components, system start-up or
re-start is intentionally delayed for up to 12 minutes under some
operating conditions. If the OPERATION LED on the unit's panel
is lighting, the system is working normally and the unit will start
after the intentional delay is complete.
Heating mode is running when the following panel lights are

on:operation and the DEF./FAN LED indicator.
Cause: the indoor unit activates protective measures because of
the low outlet temperature.
Symptom 2: The unit emits white mist
 White mist is generated and emitted when the unit starts to
operate in a very humid environment. This phenomenon will stop
once the humidity in the room is reduced to normal levels.
 The unit occasionally emits white mist when it runs in heating
mode. This occurs when the system finishes periodic defrosting.
Moisture that may accumulate on the unit's heat exchanger coil
during defrosting becomes mist and is emitted from the unit.
Symptom 3: Dust is emitted from the unit
This can occur when the unit first runs after a long idle period.

Symptom 4: The unit gives off a strange odor
If smells such as those of strong-smelling food or tobacco smoke

are present in the room, they can enter the unit, leave trace
deposits on the unit's internal components, and later be emitted
from the unit.

15. Troubleshooting

15.1 General
Sections 15.2 and 15.3 describe some initial troubleshooting

steps that can be taken when an error occurs. If these steps do
not resolve the issue, arrange for a professional technician to
investigate the problem. Do not attempt further investigations or
troubleshooting yourself.
If any of the following errors occur, power the unit off, contact a

professional technician immediately and do not attempt
troubleshooting yourself:
a. A safety device such as a fuse or circuit breaker frequently
blows/trips.
b. An object or water enters the unit.
c. Water is leaking from the unit.
Caution
• Do not attempt to inspect or repair this unit by yourself.
Arrange for a qualified technician to carry out all servicing and
maintenance.
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