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SDi Decades Extreme Service Manual www.ecoer.com
May. 2023Manufacturer reserves the right to change specifications or designs without notice.
8.7.23 PC 06 (Discharge temperature protection of compressor diagnosis and solution)
Description: If the compressor discharge temperature exceeds a certain level for nine seconds, the
compressor stops operation, the LED displays the failure code
Recommended parts to prepare:
• Connection wires
• Discharge temperature sensor
• Additional refrigerant
• Outdoor main PCB
Troubleshooting and repair:
No
No
Correct the wiring connection
Stop the leak and add refrigerantYes
Replace high pressure valve assy
Yes
No
Is refrigerant leaking?
Are the compressor discharge
temperature sensor and PCB
connected properly according
to the wiring diagram?
Is the compressor discharge
temperature more than
239℉(R410a)?
Is the value normal?
Measure the resistance value
of compressor discharge
temperature sensor
Yes
Replace the sensorNO
Replace outdoor main PCB.
Does a problem still exist?
Note: For certain models, outdoor unit uses combination sensor, T3,T4 and TP are the same of sensor.
This picture and the value are only for reference, actual appearance and value may vary.
Yes
Yes
Yes
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