Yellow ALERT LED 5 flashes — Open circuit

What does ALERT LED 5 flashes Yellow mean?

An open circuit has been detected in the system, preventing proper operation. This could be due to power supply issues or component failure.

• Condensing unit power disconnect is open.
• Compressor circuit breaker or fuses are open.
• Compressor contactor has failed open.
• High pressure switch is open and requires manual reset.
• Broken supply wires or connector.
• Unusually long compressor protector reset time due to extreme ambient temperature.
• Compressor windings are damaged.

Click steps to track your progress.

1. 1

   Turn off unit power supply and install a lockout tag.

2. 2

   Verify the condensing unit power disconnect is closed.

3. 3

   Check compressor circuit breakers or fuses.

4. 4

   Inspect for broken supply wires or loose connectors.

5. 5

   If a high pressure switch is open, attempt a manual reset.

6. 6

   Consider extreme ambient temperatures affecting protector reset time.