Si04-115
Trouble shooting
Service Diagnosis
83
5.16 Interrupt due to OL Action
Remote
Controller
Display
E5
Outdoor unit LED
Display
A
5
Method of
Malfunction
Detection
"
OL action detected by the opening of OL contact.
Malfunction
Decision
Conditions
If an OL action signal has come to the microcomputer.
"
OL action detected twice, resulting in a shutdown of the system.
(The dual-action counter will reset itself if any of the following troubles does not occur for a
total one operating hour of the compressor since the interruption: OL failure, radiation fin
temperature rise, gas shortage, or compressor failure to start.
OL setting : Open at 130±3°C
Closed at 95±10°C
Supposed
Causes
"
OL action because of refrigerant shortage
"
OL action because of 4-way valve failure
"
Error detection due to an opening of OL contact
"
Error detection due to connector in poor contact
"
Error detection due to broken OL harness
"
Error detection due to outdoor-unit PC board failure
"
OL action because of mixture of tap water in the field
