Pc06 Discharge Temperature Protection Of Compressor - Carrier 38MBRC Series Service Manual

38MBRC: Service Manual
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 ceases operation and the LED displays
the failure code.
Recommended parts to prepare:
• Connection wires
• Discharge temperature sensor
• Additional refrigerant
• Outdoor main PCB
Troubleshooting and repair:
Is the compressor discharge
temperature more than
115 °C (R410 a)/108°C (R32) ?
No
Are the
compressor discharge
temperature sensor and PCB
connected properly according
to the wiring
diagram?
Yes
Measure the resistance value
of compressor discharge
temperature sensor
Yes
Is the value normal ?
YES
Replace outdoor main PCB.
Does a problem still exist ?
YES
Replace high pressure valve assembly
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Yes Is refrigerant leaking ?
No
No
Correct the wiring connection
NO Replace the sensor.
27
Yes Stop the leak and add refrigerant
?