weasy BLIZZ900 Manuel D'instructions page 13

COMMON FAILURES AND DIAGNOSIS
INTELLIGENT ERROR DETECTION
Error-detecting code
E1
E2
E4
FUSE PARAMETERS
Specification: Φ5×20mm
Voltage: 250VAC
Current: 3.15A
TROUBLE-SHOOTING
In case of any of the following trouble, please contact professional maintenance
personnel in time.
TROUBLE
The A/C
doesn't work
Multi-functional defection
Error of the coil's temperature sensor
Error of indoor temperature sensor
Anti-freezing protection: temperature of the coil is too
low and the whole A/C is off. When temperature
excesses 8℃, the protection is released and previous
working state is recovered.
CAUSE
Not plug in
The display panel displays
"FL"
SOLUTION
Plug in
Restart the A/C after power off
and draining, then it will become
normal