Ecoer EG910L Troubleshooting guide

1/12
ESI Quick Start-up Guide www.ecoer.com
01.2021Manufacturer reserves the right to change specifications or designs without notice.
Up to 20 SEER
Inverter Ducted Split System
Quick Start-up Guide

2/12
ESI Quick Start-up Guide www.ecoer.com
01.2021Manufacturer reserves the right to change specifications or designs without notice.
Ecoer Smart Inverter (ESI)
Ducted Split System and IoT Device
The Ecoer smart inverter (ESI) heat pump is one of the industry’s most
innovative and efficient systems, with ratings up to 20 SEER and 10 HSPF per
AHRI standard 210/240-2017. With Ecoer’s patented technology, the ESI heat
pump automatically adjusts itself while maintaining constant and consistent
speeds to avoid temperature swings.
Compared with fixed speed systems, Ecoer inverters have a much wider
capacity range which helps to achieve faster heating and cooling. With more
than 30 variable stage settings, Ecoer inverters provide more accurate and
efficient temperature control while using less energy.
With the IoT device, Ecoer provides an easy way for dealers to help their
customers complete registration via Ecoer Smart Service Pro App in just
minutes. Then dealers can monitor the units’ live data and perform remote
field settings for the condensing unit. Working alongside the Ecoer Service
Team, the dealer can guarantee installation and servicing quality.
Features
○Up to 20.0 SEER and 10.0 HSPF
○Inverter Compressor (25%-110% speed)
○24/7 monitoring and diagnostic service
with IoT technology
○9 Speed ECM outdoor unit blower
○2-Stage ECM indoor unit blower control
for enhanced dehumidification
○Easy to install –compatible with most
traditional 24VAC thermostats
○AUTO charge mode to make accurate
refrigerant coefficient for the system
○Back-up running for up to 2 sensors
○10-year Residential Limited Parts Warranty

3/12
ESI Quick Start-up Guide www.ecoer.com
01.2021Manufacturer reserves the right to change specifications or designs without notice.
Outdoor Unit Indoor Air Handlers
Cooling Performance Heating Performance
CFM
Total
EER
(2)
SEER (1)
High
HSPF (3)
Low
EODA18H-2436 EAHATN-24 23400 13.0 20.0 24000 10.0 15200 800
EODA18H-2436 EAHATN-36 34200 11.2 18.0 36000 10.0 24000 1130
EODA18H-4860 EAHATN-36 36000 13.0 20.0 36000 10.0 24000 1130
EODA18H-4860 EAHATN-48 45000 12.0 17.0 47000 9.5 32000 1500
EODA18H-4860 EAHATN-60 54000 10.0 17.0 54000 9.5 35600 1590
Outdoor Unit Cased Coils
Cooling Performance Heating Performance
CFM
Total
EER
(2)
SEER (1)
High
HSPF (3)
Low
EODA18H-2436 GNC2430APT 22800 11.0 16.0 22800 9.5 15000 750
EODA18H-2436 GNC2430BPT 22800 11.0 16.0 22800 9.5 15000 780
EODA18H-2436 GNC3036BPT 31000 10.0 16.0 33000 9.5 21000 1000
EODA18H-4860 GNC4248CPT 41000 10.5 16.0 43000 9.5 30000 1280
EODA18H-4860 GNC4860CPT 51000 10.0 16.0 51000 9.5 30600 1280
EODA18H-4860 GNC4860DPT 51000 10.0 16.0 51000 9.5 30600 1500
Outdoor Unit
Model Part Number Description
EG910L G941000001 IoT Gateway
EODA18H
-
2436
F522900000 36 kBTU/hr (3Ton), Condensing Unit
EODA18H
-
4860
F523100000 60 kBTU/hr (5Ton), Condensing Unit
EAHATN-24 F447700000 24 kBTU/hr (2 Ton), Air Handler Unit
EAHATN-36 F447800000 36 kBTU/hr (3 Ton), Air Handler Unit
EAHATN-48 F448000000 48 kBTU/hr (4 Ton), Air Handler Unit
EAHATN-60 F448000000 60 kBTU/hr (5 Ton), Air Handler Unit
* Certified per AHRI 210/240-2017
(1) Seasonal Energy Efficiency Ratio; (2) Energy Efficiency Ratio @ Afull; (3) Heating Seasonal Performance Factor
Outdoor Unit Cased Coils Paring
Furnaces
Cooling Performance Heating Performance
CFM
Total EER (2)
SEER (1)
High
HSPF (3)
Low
EODA18H-2436 GNC2430APT MGH96M080B3* 23200 12.5 17.0 23200 9.5 15600 800/580
EODA18H-2436 GNC2430BPT MGH96M060B3* 23200 12.5 17.0 23200 9.5 15600 860/680
EODA18H-2436 GNC2430BPT MGH96M080B3* 23200 12.5 17.0 23200 9.5 15600 840/630
EODA18H-2436 GNC3036BPT MGH96M060B3* 31000 10.5 16.5 33000 9.5 22000 1100/850
EODA18H-2436 GNC3036BPT MGH96M080B3* 31000 10.5 16.5 33000 9.5 22000 1070/850
EODA18H-4860 GNC3036BTP MGH96M060B3* 33200 12.5 18.0 34000 9.5 23000 1100/850
EODA18H-4860 GNC3036BTP MGH96M080B3* 33200 12.5 18.0 34000 9.5 23000 1070/850
EODA18H-4860 GNC4248CPT MGH96M100C5* 44000 11.0 17.0 45000 9.5 30000 1450/1150
EODA18H-4860 GNC4860CPT MGH96M100C5* 51000 10.0 16.5 52000 9.5 35000 1450/1150
EODA18H-4860 GNC4860DPT MGH96M120D5* 51000 10.0 16.5 52000 9.5 35000 1500/1200

4/12
ESI Quick Start-up Guide www.ecoer.com
01.2021Manufacturer reserves the right to change specifications or designs without notice.
Wiring Diagrams
ESI with Electric Heat Back-up +Other Brand Thermostat
RCG
W1
W
O
Y
C
W2
Other 2-Stage
Thermostat
Optional
C
RH
RC
O
W1
G
Y1
W2
Y2
G2
RCG
W1
W
O
Y
C
G2
G2
Optional
C
RH
RC
O
W2
G
Y1
W2
ESI with Electric Heat Back-up +EST01 (Type 9)
Refer thermostat install guide to hook up W1 and W2

5/12
ESI Quick Start-up Guide www.ecoer.com
01.2021Manufacturer reserves the right to change specifications or designs without notice.
RCG
W1
W
O
Y
C
W2
Other Brand
Thermostat
Optional
C
RH
RC
O
W1
G
Y1
W2
Y2
Y1 Y2
ESI + Cased Coil + GNVF96 +Other Brand Thermostat
ESI AC + Cased Coil + GNVF96 +EST01 (Type 2)
1 2 3 4
ON DIP
SW1
SW1-3 ON: AC
SW1-3 OFF: HP
RCG
W1
W
O
Y
C
G2
C
RH
RC
O
W2
G
Y1
W2
Optional

6/12
ESI Quick Start-up Guide www.ecoer.com
01.2021Manufacturer reserves the right to change specifications or designs without notice.
Line Sets and Charging
The Ecoer EODA condensing unit is
factory pre-charged for 25ft of standard
size line set and for the smallest rated
indoor coil combinations. Up to 100ft of
line set is allowed with a maximum of 50ft
lift (see below).
Capacity
Model
Liquid
Line
Suction
Line
Total Equivalent Length (FT)
25 50 75 100
Dimensions in
inches
Maximum Elevation Difference
(FT)
2Ton
3/8 Std. 3/4 Std. 25 50 45 40
1/4 Opt. 5/8 Opt. 25 50 40 30
3Ton
3/8 Std. 3/4 Std. 25 50 50 50
1/4 Opt. 5/8 Opt. 25 50 45 40
4Ton 3/8
7/8 Std. 25 50 50 40
3/4 Opt. 25 50 50 40
5Ton 3/8
7/8 Std. 25 50 50 40
3/4 Opt. 25 50 50 40
1-1/8
Opt. 25 40 N/A N/A
(1) Charge by Weigh-In
Can be used for the initial installation, or
anytime a system charge needs to be
replaced. This method can be used when
power is not available on the job site or
the ambient temperature is improper to
use refrigerant coefficient and sub-
cooling. A refrigerant adjustment may be
necessary if the line set length is over or
under the pre-charged 25ft (adding or
removing 0.6 oz/ft on 3/8 liquid line
respectively). An additional amount of
refrigerant adjustment may be required
for a large indoor coil.
* Standard line set is recommended, N/A: Not allowed
(2) Charge by Refrigerant Coefficient
Ambient temperature must be between
50ºF and 120ºF and indoor temperature
must be kept between 70ºF and 80ºF.
After starting the system in cooling mode,
Press and hold BS4 button for five
seconds until SEG1 displays blinking 7,
and operate the system for a minimum of
20 minutes.
Check refrigerant coefficient number
(here short for “X”, 0<X<1) on the display.
If X>0.6, remove refrigerant; or X<0.4,
add more refrigerant. Then wait for 5
minutes to allow pressure balanced.
Check the new coefficient number to
make sure you get 0.5. Basically, 0.4 to
0.6 is acceptable if SH≤20゜F.
When the LED displays “--”for more than
20 minutes, adjust the TXV opening to
ensure required compressor suction
superheat (SH>7 ゜F).
00.4 0.6 1.0
Undercharged Overcharged
Proper
EODA18H-2436 EODA18H-4860
Exit Charge Mode:Press BS4 once or After 2 hours
running or Turn off the system at thermostat
Refrigerant charge is suggested to be
done by the following methods:

7/12
ESI Quick Start-up Guide www.ecoer.com
01.2021Manufacturer reserves the right to change specifications or designs without notice.
Control Board Settings
SW1 Dip switch Description
NO．Setting item Status Content
1Snow Sensor Control *a ON Disable
OFF (factory) Enable
2Capacity selection ON 2 or 4 Ton
OFF (factory) 3 or 5 Ton
3AC only / Heat pump ON AC only
OFF (factory) Heat pump
4Command response for IoT ON No
OFF (factory) Yes
1 2 3 4
ON DIP
SW1
Use minor straight
screwdriver to dial.
In most scenarios, it is recommended to keep all
outdoor unit board dip switch positions in their
manufacturer default positions. There are some
specific scenarios when it makes sense to
change dip switch settings.
Dip Switch SW1
SW1-1 sets the Snow Sensor Control mode.
SW1-2 selects Tonnage of the condensing unit.
SW1-3 sets Air Conditioner or Heat Pump
SW1-4 is suggested to remain in the factory
default position (OFF). IoT command responses
such as remote field setting, troubleshooting,
software programming etc. only work when this
switch remains in the OFF position.
Must power off the unit for at least two (2) minute to activate your dial of switches.
Dip
Switches
Display
a. ver203 or above support this function.

8/12
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
3Compressor discharge temperature sensor (TD)
backup running
4IPM 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

9/12
ESI Quick Start-up Guide www.ecoer.com
01.2021Manufacturer reserves the right to change specifications or designs without notice.
No. Spot check content via BS3
Default Refer to default display instructions
01-Outdoor unit type and capacity
02-Liquid line sub-cooling
03-Compressor suction superheat
04-Compressor speed
05-Electronic expansion valve opening
06-Step of fan
07-Low pressure (LP sensor)
08-High pressure (HP sensor)
09-Outdoor ambient temp. (TA)
10-Compressor suction temp. (TS)
11-Compressor discharge temp. (TD)
12-Defrost sensor temp. (TH)
13-Liquid line temp. (TL)
14-Inverter module temp. (TF)
15-Target evaporating temp. (Tes)
16-Current evaporating temp. (Te)
17-Target condensing temp. (Tcs)
18-Current condensing temp. (Tc)
19-Compressor DC current
20-Undercharged refrigerant signal
21-Main software version
22-Inverter software version
23-Current fault
24-The last fault
25-Fault before the last fault
BS1 Button - “Menu”or “Back” button
Shortly press “BS1”to query settings
n00: Mode choice (Energy Saving, Dry, High Capacity)
n01: Prohibited heat pump running temperature
n02: Turn ON/OFF W output
n03: W output settings
n04: Defrost Mode (Heavy/light snow, standard)
n05: Silent Mode (level 1 or 2, night silent level 1 or 2)
n06: Night Silent Start Hour
n07: Night Silent End Hour
n08: Manual Defrost
Press and hold “BS1”for 5 seconds to set above
functions (n01 to n08). Refer to install or service
manual for details. You can change these settings
besides n08 via Ecoer Smart Service Pro App.
BS2 Button - “UP”button
BS3 Button - “Spot check”and “Confirm” button
1. After first pressing on the “BS3”button, it will
display the sequence, and after 1 second it
will display the value of the parameter.
2. After 20 seconds on same parameter, display
will revert back to normal status.
Key parameters can be remotely monitored via
Ecoer Smart Service Pro App.
BS4 Button
Press and hold “BS4”for 5 seconds to enter AUTO
charge mode by coefficient number in cooling or
pump down in heating.
Buttons
BS1 BS2 BS3
BS4

10/12
ESI Quick Start-up Guide www.ecoer.com
01.2021Manufacturer reserves the right to change specifications or designs without notice.
1. Create an ecoer account
2. Add Unit (Register a new AC/HP)
Steps of warranty registration
Get the Ecoer Smart Service Pro App
Download or update the Ecoer Smart Service Pro App
free on the App Store or Google Play.
•Sign an agreement with homeowner
•Scan/Input serial numbers to submit
Hang the IoT device on the condensing unit, tighten it with the
included screw and belts. Unscrew the cable locker cap and fasten
the waterproof joint based on the IoT install guide.
Plug the male blue terminal of IoT device into CN11 (IoT)
connector on main control board of condensing unit. Power ON
the condensing unit and check if the IoT device is working
properly. The normal working state of IoT device should be the
blue LED (No.1) is blinking with other LEDs light OFF.
LEDs
No. Color Indications Description
1 Blue IoT Device
status
Always OFF Power off
Always ON Booting
Blinking Running
2 Red LTE Status
Always OFF LTE connected
Always ON Booting
Blinking LTE disconnected
3 Green Connection to
PCB
Always OFF Local link connected
Always ON Booting
Blinking Local link disconnected
IoT Connection and Registration

11/12
ESI Quick Start-up Guide www.ecoer.com
01.2021Manufacturer reserves the right to change specifications or designs without notice.
Notes

12/12
ESI Quick Start-up Guide www.ecoer.com
01.2021Manufacturer reserves the right to change specifications or designs without notice.
About Ecoer
Ecoer Inc. was established in 2016.We are a US company focusing on
offering the best ducted Residential Air Conditioner and Heat Pump systems
using Inverter and “Smart” IoT Technology.
Ecoer has grown to multiple locations in 4 countries: the United States,
Cancada, Japan and China. The United States houses Ecoer's headquarters,
technical support center and distribution centers. Ecoer's software
development facility is in Japan, and manufacturing, systems engineering and
quality control are based in China. Ecoer both designs it's equipment and
owns all rights to its technology.
Ecoer’s goal is to simplify the inverter install process and connect the dealer
to the homeowner and their system. By doing this, we hope to see more
inverters used in the US residential market, making it easier and faster to
install for the dealer and help with quicker and more accurate response times
for the homeowner.
Ecoer’s Mission Statement is:
Make your home Green and Smart”.
©2022 ECOER INC.
43671 Trade Center Place, Suite 100
Dulles, VA 20166
Tel: [phone]
www.ecoer.com