E9-00 — Malfunction of electronic expansion valve

Was bedeutet E9-00 ?

The electronic expansion valve (EEV), which controls refrigerant flow, is malfunctioning.

• EEV electrical fault
• Mechanical blockage in the valve
• Control signal issue

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

1. 1

   Ensure the unit is powered off before inspecting.

2. 2

   Check wiring connected to the EEV.

3. 3

   Restart the unit after a power cycle.

4. 4

   This issue requires diagnosis by a trained HVAC technician.