Question 1

What does E0 mean on a Classic America mini split?

Accepted Answer

Lost communication between indoor and outdoor units. Common at start up. If this appears at initial startup, check for miswiring, or a broken or disconnected cable #1 (the leftmost of 3; it may be labelled differently).

Question 2

What does E1 mean on a Classic America mini split?

Accepted Answer

Indoor temperature sensor fault.  Note the code, switch the unit off at the breaker for a few minutes, then switch it back on. If the code returns, call support with the code and your model number.

Question 3

What does E2 mean on a Classic America mini split?

Accepted Answer

Indoor pipe temperature sensor fault.  Note the code, switch the unit off at the breaker for a few minutes, then switch it back on. If the code returns, call support with the code and your model number.

Question 4

What does E3 mean on a Classic America mini split?

Accepted Answer

Outdoor pipe temperature sensor fault.  Note the code, switch the unit off at the breaker for a few minutes, then switch it back on. If the code returns, call support with the code and your model number.

Question 5

What does E4 mean on a Classic America mini split?

Accepted Answer

Refrigerant system leakage or fault.  Refrigerant work needs a licensed HVAC technician.

Question 6

What does E6 mean on a Classic America mini split?

Accepted Answer

Malfunction of the indoor fan motor.  Note the code, switch the unit off at the breaker for a few minutes, then switch it back on. If the code returns, call support with the code and your model number.

Question 7

What does E7 mean on a Classic America mini split?

Accepted Answer

Outdoor air temperature sensor fault.  Note the code, switch the unit off at the breaker for a few minutes, then switch it back on. If the code returns, call support with the code and your model number.

Question 8

What does E8 mean on a Classic America mini split?

Accepted Answer

Outdoor discharge temperature sensor fault.  Note the code, switch the unit off at the breaker for a few minutes, then switch it back on. If the code returns, call support with the code and your model number.

Question 9

What does E9 mean on a Classic America mini split?

Accepted Answer

Outdoor IPM module fault.  Note the code, switch the unit off at the breaker for a few minutes, then switch it back on. If the code returns, call support with the code and your model number.

Question 10

What does EA mean on a Classic America mini split?

Accepted Answer

Outdoor current detect fault.  Note the code, switch the unit off at the breaker for a few minutes, then switch it back on. If the code returns, call support with the code and your model number.

Question 11

What does EE mean on a Classic America mini split?

Accepted Answer

Outdoor PCB EEPROM fault.  Note the code, switch the unit off at the breaker for a few minutes, then switch it back on. If the code returns, call support with the code and your model number.

Question 12

What does EF mean on a Classic America mini split?

Accepted Answer

Outdoor fan motor fault.  Note the code, switch the unit off at the breaker for a few minutes, then switch it back on. If the code returns, call support with the code and your model number.

Question 13

What does EH mean on a Classic America mini split?

Accepted Answer

Outdoor suction temperature sensor fault.  Note the code, switch the unit off at the breaker for a few minutes, then switch it back on. If the code returns, call support with the code and your model number.

Question 14

What does FX mean on a Classic America mini split?

Accepted Answer

Advanced troubleshooting codes. Any code starting with F. Contact tech support for assistance, with the exact code shown and your model number.

Question 15

What does P4 mean on a Classic America mini split?

Accepted Answer

Compressor overload.  If this appears at initial startup, check that the refrigerant valves are open.

Question 16

What does CL mean on a Classic America mini split?

Accepted Answer

Clean filters. A reminder, not a fault. Appears after a set number of hours of fan operation: 500 on most models. Clean the filters.

Question 17

What does DF mean on a Classic America mini split?

Accepted Answer

Defrost mode. Shown as "df" or "C8" depending on the model. Normal in heat mode. No action needed. The unit melts ice on the outdoor coil and resumes heating on its own, within 2 to 10 minutes.

Mini split error codes

Fault codes

Reminders and normal operation