Q.1.61 January 2023
Page 3
KE2 Evap
OEM
Alarm Troubleshooting Guide
© Copyright 2023 KE2 Therm Solutions, Inc., Washington, Missouri 63090
21214V3.0
Alarms & Notifications List
Alarm Type
Abbreviation
Scrolling Text*
Full Name
Description
Page
KE2 Combo
Display
dtS
dtS
DOOR TEMP SENSOR
Door Temp Sensor Alarm Combo Display Aux 1 Door Temp Sensor is shorted or open.
Page 13
dt2
dt2
DISPLAY AUX2 SENSOR Disp Aux2 Sensor Alarm Combo Display Aux 2 Temp Sensor is shorted or open.
Page 13
dt3
dt3
DISPLAY AUX3 SENSOR Disp Aux3 Sensor Alarm
Combo Display Aux 3 Temp Sensor is shorted of open.
Page 13
dtH
dtH
DOOR TEMP HIGH
High Door Temp Alarm
Combo Door Temp above Door Tempe High Door Alarm
Offset longer than High/Low Door Temperature Alarm Delay.
Page 14
dtL
dtL
DOOR TEMP LOW
Low Door Temp Alarm
Combo Door Temp below Door Temperature - Low Door Alarm
Offset longer than High/Low Door Temperature Alarm Delay.
Page 14
Hd2
Hd2
HIGH MONITOR TEMP2 High Mon2 Temp Alarm
Combo Aux2 Monitor Temp reading above Monitor Temp2 High
Alarm setpoint longer than Monitor Temp2 Alarm Delay.
Page 15
Ld2
Ld2
LOW MONITOR TEMP2 Low Mon2 Temp Alarm
Combo Aux2 Monitor Temp reading below Monitor Temp2 Low
Alarm setpoint longer than Monitor Temp2 Alarm Delay.
Page 15
Hd3
Hd3
HIGH MONITOR TEMP3 High Mon3 Temp Alarm
Combo Aux3 Monitor Temp reading above Monitor Temp3 High
Alarm setpoint longer than Monitor Temp3 Alarm Delay.
Page 15
Ld3
Ld3
LOW MONITOR TEMP3 Low Mon3 Temp Alarm
Combo Aux3 Monitor Temp reading below Monitor Temp3 Low
Alarm setpoint longer than Monitor Temp3 Alarm Delay.
Page 15
EA1
EA1
DISPLAY EXTERNAL
ALARM 1
Disp Ext1 Alarm
Combo External Alarm 1 input is active.
Page 15
EA2
EA2
DISPLAY EXTERNAL
ALARM 2
Disp Ext2 Alarm
Combo External Alarm 2 input is active.
Page 15
EA3
EA3
DISPLAY EXTERNAL
ALARM 3
Disp Ext3 Alarm
Combo External Alarm 3 input is active.
Page 15
Pbt
Pbt
HELP
Panic Button Alarm
KE2 Combo Display panic button is active.
Page 15
LPCO (Low
Pressure Cut-Out
control) Only
Pdt
Pdt
PUMPDOWN TIMEOUT Pump Down Timeout
Low Pressure Cut-out Time exceeded before suction pressure
reached Low Pressure Cut-out.
Page 15
SCC
SCC
SHORT COMP CYCLE
Short Compressor Cycle
Compressor started excessive number of times due to high
suctionpressure in off mode, or comp. stopped excessive number
of times due to low suction pressure while in refrigeration mode.
Page 15
LPA
LPA
LOW PRESSURE
Low Pressure Alarm
Suction pressure below Low Pressure Cut-out despite attempts
to run.
Page 16
KE2 Humidity
Control
HSA
HSA
HUMIDITY SENSOR
Humidity Sensor Alarm
Humidity sensor is shorted or open.
Page 16
HHA
HHA
HIGH HUMIDITY
High Humidity Alarm
Humidity reading above Humidity Se Humidity
Differ Humidity Alarm Offset for longer than Humidity
Alarm Delay.
Page 16
LHA
LHA
LOW HUMIDITY
Low Humidity Alarm
Humidity reading below Humidity Setpoint - Humidity
Differential - Humidity Alarm Offset for longer than Humidity
Alarm Delay.
Page 17
CHA
CHA
HUMIDITY COMM
Humidity Comms Alarm
KE2 Evap OEM lost communication with KE2 Humidity Control
board for 10 seconds.
Page 17
KE2 Evap OEM w/
High Side Control
Only
HDA
HDA
HIGH DISCH TEMP
High Disch Temp
Discharge temp reading above High Dis charge Temp Set point for
longer than High Discharge Temp Delay.
Page 17
LCT
LCT
SYSTEM LOCKOUT
Comp Locked Out
In one hour system cycled off on high discharge temp more times
than Max Num ber of Starts setpoint.
Page 17
HCA
HCA
HIGHCOND TEMP
High Cond Temp
Condenser temp reading is above Cond Temp Se High
Cond Temp Alarm Offset for longer than High Cond Temp Delay. Page 18
LCA
LCA
LOW COND TEMP
Low Cond Temp
Condenser temp reading is less than Cond Temp Setpoint - Low
Cond Temp Alarm Offset for longer than Low Cond Temp Alarm
Delay.
Page 18
A1A
A1A
AUX1 SENSOR
Dis Aux1 Sensor
Discharge temp sen sor input is shorted or open.
Page 18
A2A
A2A
AUX2 SENSOR
Dis Aux2 Sensor
Discharge temp sen sor input is shorted or open.
Page 18
A3A
A3A
AUX3 SENSOR
Dis Aux3 Sensor
Discharge temp sen sor input is shorted or open.
Page 18