Troubleshooting Si-95100 Troubleshooting Inverter K Series2.24 Outdoor Unit: Malfunction of Suction Pipe Pressure SensorRemote ControllerDisplayJJJJCCCCSupposed Causes Defect of low pressure sensor system Connection of high pressure sensor with wrong connection. Defect of outdoor unit PC board.Troubleshooting∗1: Voltage measurement point∗2: Refer to pressure sensor, pressure/voltage characteristics table on P140.(VF050)Therelationshipbetween theVH and low pressure isnormal (see ∗2) when voltageis measured between X21A pins(2) and (3) of outdoor unitPC board (A1P)(see ∗1).Replace the low pressure sensor.Connection of high pressure sensorwith wrong connection.NONOReplace outdoor unit PC board A1P.YESYESThe lowpressure sensor isconnected to X21A (blue)of outdoor unit PCboard (A1P).SI-95.BOOK Page 100 Friday, March 31, 2000 10:59 AM
