E8
Drazice Compressor Protection / Refrigerant Circuit Fault

Drazice heat pump water heater shows E8; compressor does not start.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

High-pressure switch tripped, low refrigerant charge, compressor overload, blocked air flow through evaporator, defective compressor relay

How to Fix / Troubleshooting

Critical safety: Refrigerant and compressor work must be done by certified HVAC technicians. Do not open the refrigerant circuit yourself.

User-level checks:

  • Turn OFF power and inspect the outdoor/air intake and exhaust grilles. Clean any dust, leaves, or obstructions to ensure proper airflow.
  • Check that the ambient temperature is within the operating range specified by Drazice; very low or very high temperatures can trigger protection.
  • Reset the unit by switching OFF/ON at the main switch or breaker after 5 minutes.

If E8 returns, a professional must check the high/low pressure switches, compressor windings, and refrigerant charge, and may need to replace the compressor or control board.

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Repair Difficulty

Professional Required 5/5

Required Part

Compressor Assembly
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