Gree GMVVQ224WM/C-X

GMV Heat Recovery DC Inverter VRF
68
6.4 Maintenance at the End of Using Season
(1) Cut off the main power of the air conditioning unit.
(2) Clean the filter and indoor and outdoor units’ body.
(3) Remove dust and debris from indoor and outdoor units.
(4) If the outdoor unit is rusted, smear the oil paint to prevent it from expansion.
6.5 Parts Replacement
Accessories are available through the nearby GREE office or GREE dealer.
NOTE!
Do not mix dangerous gases such as oxygen and acetylene into the refrigeration circuit during air
tightness and leak test! To avoid danger, it is best to use nitrogen for such tests.
7 Troubleshooting
7.1 Common Malfunction and Troubleshooting
Check the following items before asking for repair.
Phenomenon
Reason
Measure
The unit doesn't run.
Without power supply Connect to power supply
Voltage is too low
Check if the voltage is within rating range
Broken fuse or breaker trips off
Replace fuse or connect breaker
Insufficient energy of remote controller
Replace new battery
Remote controller is out of control
scope
Control scope is within 8m
Unit runs but stop
immediately
Air intake or outlet of indoor or outdoor
unit is blocked
Remove obstruction
Abnormal cooling or
heating
Air intake or outlet of indoor or outdoor
unit is blocked
Remove obstruction
Improper temperature setting
Adjust setting at wireless remote controller or
wired controller
Fan speed is set too low
Adjust setting at wireless remote controller or
wired controller
Wind direction is not correct
Adjust setting at wireless remote controller or
wired controller
Door or windows are opened
Close the door or windows
Direct sunshine
Draw curtain or louver
Too many people in the room
—
Too many heat resources in the room
Reduce heat resources
Filter is blocked for dirt
Clean the filter
NOTE!
If problem cannot be solved after checking the above items, please contact Gree service center
and show phenomena and models.
Following circumstances are not malfunction.