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8

Error Code 8 — Compressor discharge temperature too high

Haier · Air Conditioning

What does 8 mean?

The temperature of the hot gas leaving the compressor is too high. The system has tried to reduce this temperature, but the condition persists.

Common Causes

  • Lack of refrigerant in the system
  • Excessive heat in the conditioned space
  • Restriction in the refrigeration circuit

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check the refrigerant level in the system.

  2. 2

    Reduce the heat load in the conditioned space if possible.

  3. 3

    Inspect the refrigeration circuit for any blockages or restrictions.

  4. 4

    Ensure the outdoor coil is clean.

Browse all codes in this manual (103)
Verified technical data. Last updated: April 2026

Related Faults

1Error Code 1 — Outdoor PCB EEPROM fault10Error Code 10 — Defrost sensor fault11Error Code 11 — Compressor suction temperature sensor fault
Source: Haier Air Conditioning
Open Manual (Page 22)Search more codes in this manual