10
4.1 Error Code
Chapter 4 Troubleshooting Guide
(4-way valve swich failure)
No.
Error Code
Problem
1
E1
Room temperature sensor fault
2
E2
Outdoor coil temperature sensor fault
3
E3
Indoor coil temperature sensor fault
4
E4
Indoor fan motor or DC motor feedback fault
5
E5
Indoor & outdoor communication fault
6
F0
Outdoor DC Fan motor fault
7
F1
IPM modular fault
8
F2
PFC modular fault
9
F3
Compressor operation fault
10
F4
Exhaust Temperature sensor fault
11
F5
Compressor top cover protection
12
F6
Outdoor ambient temp sensor fault
13
F7
Over/under voltage protection
14
F8
Outdoor modular communication fault
15
F9
Outdoor E²PROM fault
16
FA
Suction temperature sensor fault
