Error Code List For Outdoor Unit - Ecoer EODA18H-2436 Service Manual

ESI(Ultra) Service Manual
Past error codes can be spot checked from default mode by BS3 button, and seen from Ecoer Smart

Error code List for Outdoor Unit

Service App.
P1
High pressure protection
Error Code Description
E1 System locks up when P1 has occurred six times in 3 hours.
P2 Low pressure protection in cooling mode
E2 System locks up when P2 has occurred six times within 3 hours.
P3 Compressor discharge temperature (TD) protection
E3
System locks up when P3 has occurred six times within 3 hours.
P4 Compressor discharge temperature (TD) sensor is disconnected or damaged
P5 Inverter module temperature (TF) protection
E5 System locks up when P5 has occurred six times within 3 hours.
P6 Compressor over-current protection
E6 System locks up when P6 has occurred six times within 3 hours.
P7 Liquid slugging protection
E7 System locks up when P7 has occurred three times within 5 hours.
P8 Low compressor voltage protection
E8 System locks up when P8 has occurred three times within 60 minutes.
P9 Abnormal compressor line sequence
PA
DC fan motor over-load protection
F1 Ambient temperature(TA) sensor fault
F2 Compressor suction temperature(TS) sensor fault
F3 Liquid line temperature(TL) sensor fault
F4 Defrost temperature(TH) sensor fault
F5 Compressor discharge temperature(TD) sensor fault
F6 Inverter module temperature(TF) sensor fault
F7 High pressure(HP) sensor fault
F8 Low pressure(LP) sensor fault
E4 Communication fault between main chip and INV drive chip
H1 Ambient temperature limit operation in cooling mode
H2 Ambient temperature limit operation in heating mode
H3 Abnormal switch alarm for 4-way valve
H4 Defrost temperature(TH) sensor is disconnected or damaged
H5 EEPROM fault
H6 Low voltage alarm
C0-C9 Compressor INV module protection
E0 System locks up when C0~C9 has occurred three times within 60 minutes.
1. On the case there is an "E" code, manually turn off the power supply for 5 minutes to reset, then turn on the
Remarks:
system to recover.
2. System goes to backup running under sensors fault varies from 7 to 180 days. Allow up to two sensors
backup running at the same time.
Manufacturer reserves the right to change specifications or designs without notice.
31/62
www.ecoer.com
Legend
Cannot restart *1
Cannot restart *1
Cannot restart *1
Cannot restart *1
Cannot restart *1
Cannot restart *1
Cannot restart *1
Cannot restart *1
Backup running*2
Backup running*2
Backup running*2
Backup running*2
Backup running*2
Backup running*2
Backup running*2
Backup running*2
Cannot restart *1
Just show alarm
Cannot restart *1
09.2018