EU Error CodeUpdated 8 days ago
Introduction
The "EU" error code indicates the outdoor unit's voltage test sensor has experienced a fault. This article is for the following systems:
- Diamante Essenza High-Wall (WYT-17)
- Diamante Pro High-Wall (WYT-20)
- Quantum Fresh High-Wall (WYT-FA)
- Quantum Hyperformance High-Wall (WYT-25)
- Quantum Ultra Ceiling Cassette (CYT-24)
- Quantum Ultra Ducted Ceiling Concealed (RYT-24)
- Quantum Ultra Floor-Ceiling Flex (UYT-24)
- Quantum Ultra High-Wall (WYT-24)
After the power relay operates, if the tested effective voltage is less than 50V for 3 seconds continuously, the system will display the error code.
