Error 8 — Compressor discharge temperature too high

What does [8] Discharge temperature too high protection mean?

The compressor discharge temperature has exceeded 115°C. The error will clear within 3 minutes if the temperature drops below this threshold. If it happens 3 times in an hour, the system will lock.

• The sensor is bad or improperly fixed
• The system is clogged
• The system lacks refrigerant
• Incorrect valve opening

Click steps to track your progress.

1. 1

   Check if the sensor wiring is firmly in place.

2. 2

   Measure the sensor resistance to see if it is within range.

3. 3

   Check if the system is clogged.

4. 4

   Check if the PMV coil wiring is okay.

5. 5

   Ensure the stop valve is open.

6. 6

   Check if the system is low on refrigerant.