Error 8 — Discharge temperature too high protection

What does 8 mean?

Compressor discharge temperature has exceeded 115°C. The error clears if the temperature drops below 115°C within 3 minutes. It locks if it occurs 3 times in 1 hour.

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

Click steps to track your progress.

1. 1

   Check if sensor wiring is firmly in place.

2. 2

   Check if the system is clogged and clean the piping system.

3. 3

   Check if the system is low on refrigerant and charge it if necessary.

4. 4

   Check if the PMV coil wiring is okay and if the stop valve is open.

5. 5

   Replace wire and test again if sensor resistance is not within range.