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Photovoltaic Multi VRF
Error Code
AJ
Cleaning reminding of filter
Debugging confirmation when
AP
starting up the unit
AU
Long-distance emergency stop
Ab
Emergency stop of operation
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Limit operation
An
Child lock status
8 Maintenance and Care
Regular check, Maintenance and care should be performed every six months by
professional personnel, which will prolong the unit life span. Disconnect the power supply
before cleaning and maintenance.
8.1 Outdoor Heat Exchanger
Outdoor heat exchanger is required to be cleaned once every six months. Use vacuum
cleaner with nylon brush to clean up dust and sundries on the surface of heat exchanger. Blow
away dust by compressed air if it is available. Never use water to wash the heat exchanger.
8.2 Drain Pipe
Regularly check if the drain pipe is clogged in order to drain condensate smoothly.
8.3 Notice before Seasonal Use
(1) Check if the inlet/outlet of the indoor/outdoor unit is clogged.
(2) Check if the ground wire is earthed reliably.
(3) Check if battery of remote wireless controller has been replaced.
(4) Check if the filter screen has been set soundly.
(5) After long period of shutdown, open the main power switch 8 hours before reoperating
the unit so as to preheat the compressor crankcase.
(6) Check if the outdoor unit is installed firmly. If there is something abnormal, please
contact the GREE appointed service center.
8.4 Maintenance after Seasonal Use
(1) Cut off main power supply of the unit.
(2) Clean filter screen and indoor and outdoor units.
(3) Clean the dust and sundries on the indoor and outdoor units.
(4) In the event of rusting, use the anti-rust paint to stop spreading of rust.
8.5 Parts Replacement
Purchase parts from Gree appointed service center or dealer if necessary.
NOTICE! During airtight and leakage test, never mix oxygen, ethyne and other dangerous
gas into refrigeration circuit. In case of hazard, it's better to use nitrogen or refrigerant to
Content
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Error Code
nE
Negative code
nF
Fan model
High temperature prevention when
nJ
heating
Eliminate the long-distance shielding
nU
command of IDU
nb
Bar code inquiry
Length modification of connection
nn
pipe of ODU
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