SiBE04-101 TroubleshootingService Diagnosis 1134.23 Operation Halt Due to Detection of Insufficient GasRemote ControllerDisplayU0Outdoor unit LEDDisplayA 5 1 3 2 3 3 4 4 4Method ofMalfunctionDetectionDetection method 1Gas shortage is detected by the temperature of the discharge pipe which is detected by the discharge pipethermistor and the opening of the electromagnetic valve.MalfunctionDecisionConditionsOutdoor air temperature < -5˚CDischarge pipe temperature > 111˚COpening of electromagnetic valve ≥ 450 pulses (Full open)A system shutdown occurs after 4 times.When a gas shortage malfunction is generated 4 times, the system shuts down. The counter is reset whenthere is no operation shutdown due to an error (including operation halt due to other cause) for 60 minutes(cumulative time) of compressor operation after the error condition is canceled.Supposed Causes Insufficient gas due to refrigerant leaks. Inadequate compression of the compressor. Abnormal discharge pipe thermistor. Operation with closing stop valve. Disconnected or faulty electronic expansion valve. Piping error.SiBE04-101.book Page 113 Monday, October 15, 2001 3:08 PM
