DeLonghi GWHD18A1NK3EA Service Manual page 57

Troubleshooting Guide
(SIPM Message)
55 Room Air Conditioner
Blink 5 times
Blink 6 times
Blink 7 times
Blink 8 times
Blink 1 time
Blink 2 times
Blink 3 times
Blink 4 times
Blink 5 times
Blink 1 time
Blink 2 times
Blink 3 times
Blink 4 times
Blink 5 times
Blink 6 times
Blink 7 times
Blink 8 times
Blink 9 times
Heating anti-high-temperature frequency
limitation of unit B
Oil return
Keep 8A-current frequency for 3 minutes
Keep 9A-current frequency for 3 minutes
Outdoor environmental sensor malfunction
Outdoor tube sensor malfunction
Outdoor discharge sensor malfunction
Compressor overload sensor malfunction
SIPM communication malfunction (not receiving
correct data for 10 seconds)
Reset stopping
Surge current is too high or 17V voltage is too
low
Abnormal low speed
Switch failure
Overload stop
Over heat
OH or FIN sensor malfunction
Poor speed up
Poor communication