38MHRC: Service Manual
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
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DIAGNOSIS AND SOLUTION (CONT)
Refrigerant Leakage Detection diagnosis and solution (EC)
Description: Define the evaporator coil temp.T2 of the compressor. The compressor starts running in Tcool. At first, 5 minutes after the compressor
starts up, if T2 <Tcool-35.6F (Tcool-2C) does not run for 4 seconds and this situation occurs 3 times, the display area displays “EC” and the air
conditioner turns off.
Possible causes:
• Faulty T2 sensor
• Faulty indoor PCB
• System problems, such as leaks or blockages
Troubleshooting
A210601
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