El‖ Emergency Stop (Fire Alarm); Failures Not Caused By Errors - Gree GUD35W/NhA-T Service Manual

GREE
3.4.39 ―EL‖ Emergency Stop (Fire Alarm)
If fire alarm terminal is enabled after the IDU mainboard connects to function expansion panel, error EL will be reported.

3.5 Failures Not Caused by Errors

（1）If your air conditioner fails to function normally, please first check the following items before maintenance:
The air conditioner can't run.
Bad cooling or heating effect.
Problem Cause
If you turn off the unit and then
immediately turn it on, in order
to protect the compressor and
avoid system overload,
compressor will delay running
for 3min.
Wire connection is wrong.
Fuse or circuit breaker is
broken.
Power failure
Power plug is loose
Remote control has low
battery.
Air inlet and outlet of indoor or
outdoor units have been
blocked.
Improper temperature setting
Fan speed is too low.
Air flow direction is not right.
Doors or windows are open.
Exposed under direct sunshine
Too many heat sources in the
room.
Filter is blocked or dirty.
Air inlets or outlets of the units
are blocked.
U-Match 5 SERIES UNIT SERVICE MANUAL
Corrective measure
Please wait for a while.
Connect wires according to the
wiring diagram.
Replace the fuse or switch on the
circuit breaker.
Restart after power is resumed.
Re-insert the power plug.
Replace the batteries.
Clear the obstacles and keep the
room for indoor and outdoor units
well ventilated.
Reset a proper temperature.
Reset a proper fan speed.
Change the direction of air
louvers.
Close them.
Put on curtains or louvers in front
of the windows.
Remove unnecessary heat
sources.
Send for a professional to clean
the filter.
Clear away obstacles that are
blocking the air inlets and outlets
of indoor and outdoor units.
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