What does 47 mean?

The outdoor unit is not receiving the expected 230-volt power supply. This will prevent the unit from operating.

• Power supply issue to the unit
• Tripped circuit breaker
• Loose wiring connection
• Faulty contactor or relay

Click steps to track your progress.

1. 1

   Check the circuit breaker supplying power to the outdoor unit.

2. 2

   Verify all power wiring connections to the outdoor unit are secure.

3. 3

   Test for 230V at the unit's electrical connection point.

4. 4

   Contact an HVAC technician if power is not present.