Skip to content

Fresh Comfort With Our Spring Refresh Sale

Rinnai Error Codes

Common error codes
Hycool Air Conditioning & Electrical

Search Code or Problem

Rinnai air conditioning units utilize error codes to indicate specific malfunctions or issues. Below is a list of common error codes along with their descriptions.

Indoor Unit Error Codes

E1

Indoor Temperature Sensor Fault

Learn More
E2

Indoor Coil Sensor / Freeze Protection

Learn More
E3

Drainage / Water Leak Fault

Learn More

Outdoor Unit Error Codes

E4

Outdoor Unit Overheat

Learn More

System Error Codes

E5

Electrical / Overcurrent Protection

Learn More
F1

Communication Fault

Learn More
F2

Sensor Fault

Learn More
P1

High Pressure Protection

Learn More
P2

Low Pressure Protection

Learn More
H3

Compressor Overload Protection

Learn More