Friedrich MD24Y3J Svc Manual page 70

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Title
code
High temperature in
32 Discharge pipe of the
inverter compressor
WARNING
Before checking PCB or each outdoor electric parts, wait for 3 minutes after the power is off. When measuring at standby state
of power supply, after checking the measurement mode of the meter, be careful of the short-circuits with other parts.
Only for training and service purposes
Cause of error
• Overload operation
(Outdoor fan constraint,
screened, blocked)
• Refrigerant leakage
(insufficient)
• Poor INV Comp
Discharge sensor
• LEV connector displaced
/ poor LEV assembly
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Check point & Normal condition
• Check outdoor fan constraint/ screened/ flow
structure
• Check refrigerant leakage
• Check if the sensor is normal
• Check the status of EEV assembly
CN_TH3
(RED 4Pin Connector)