No voltage on Outdoor Unit — The outdoor unit has no power

What does No voltage Outdoor Unit mean?

The outdoor unit appears to have no power or is not responding. This suggests an issue with the power supply to the outdoor unit.

• Tripped circuit breaker for the outdoor unit.
• Faulty wiring or loose connections.
• External causes such as noise or voltage drop in the electrical circuit.
• Faulty electrical components within the Outdoor Unit, such as a blown fuse or varistor on the Main PCB.

Click steps to track your progress.

1. 1

   Check if the circuit breaker for the outdoor unit is cut off and reset it if necessary.

2. 2

   Inspect the wiring to the outdoor unit for any visible damage or loose connections.

3. 3

   Check if other electrical devices on the same circuit might be causing a drop in voltage or current leaks.

4. 4

   Verify that a voltage between AC 198 and AC 264 V exists between terminals 1 and 2 on the Hydraulic Unit terminal block (only for qualified personnel).

5. 5

   If these checks are unsuccessful, the Main PCB or its fuses/varistors may be faulty and need replacement by a qualified technician.