Ecoer EG910L - Page 8

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ESI Quick Start-up Guide
www.ecoer.com
01.2021Manufacturer reserves the right to change specifications or designs without notice.
Display
SEG1: Normally blank
SEG2: Normally blank
SEG1
Description
0 Software is updating via IoT device
1 High pressure sensor (HP) backup running
2 Low pressure sensor (LP) backup running
3
Compressor discharge temperature sensor (TD)
backup running
4
IPM module temperature sensor (TF) backup
running
5 Ambient temperature sensor (TA) backup running
6 Defrost sensor (TH) backup running
7
Compressor suction temperature sensor (TS) backup
running
8 Liquid line temperature sensor (TL) backup running
9 IoT command response
SEG2
Description
0 Running under high pressure limit
1 Running under low pressure limit
2 Running under discharge temperature limit
3 Running under IPM module temperature limit
4 Running under compressor current limit
SEG3
Description
0 Stop (No Y signal)
1 Ready to start-up
2 Cooling
3 Heating
4 Oil return
5 Defrost
6 Manual defrost
7 AUTO charge mode in cooling
8 Pump down in heating
Code
Description
P1
H
igh pressure protection
E1
System
locks up when P1 has occurred six times in 3 hrs.
P2
Low pressure protection in cooling mode
E2
System
locks up when P2 has occurred six times in 3 hrs
P3
Compressor discharge temperature (TD) protection
E3
System
locks up when P3 has occurred six times in 3 hrs
P4
Compressor discharge temperature (TD) sensor error
P5
Inverter module temperature
(TF) protection
E5
System
locks up when P5 has occurred six times in 3 hrs
P6
Compressor over
-current protection
E6
System
locks up when P6 has occurred six times in 3 hrs
P7
Liquid slugging protection
E7
System
locks up when P7 has occurred three times in 5 hrs
P8
Low compressor voltage
protection
E8
System
locks up when P8 has occurred three times in 1 hr
P9
Incorrect 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
H2
Ambient temperature limit operation in heat
ing
H3
Abnormal
switch alarm for reversing valve
H4
Defrost temperature (TH) sensor
error
H5
EEPROM fault
H6
Low voltage
alarm
HF
Abnormal function control
C0
-
CC
Compressor INV module protection
E0
System
locks up when C0~CA has occurred three times in 1 hr
SEG3: Normally shows operation mode
SEG2 and SEG3: Show following codes
when system is in fault
Troubleshoot based on service manual,
or via Ecoer Smart Service Pro App.
SEG1 SEG2 SEG3
Display