2016 Emerson Climate Technologies, Inc - Emerson Copeland Scroll XFAL Series Installation And Reference Manual

Code Description
E25 Open start circuit error/
L25 lockout
E26 Under voltage alarm/
L26 lockout
E27 Over voltage alarm/
L27 lockout
Compressor protector
E28
trip
E40 High pressure switch
L40 trip/ lockout
Discharge line
E44
temperature alarm/
L44
lockout
High condenser
E46
temperature alarm
Over injection (XFALs
E47
only)
Refrigerant shortage
E48
(XFALs only)
High side flood back
E50
alarm
Rtc warning, date not
E80
correct
Rtf warning,
E81
communication error
E82-E85 Configuration Errors
EEPROM Memory
L86
Error
© 2016 Emerson Climate Technologies, Inc.
Alarm Level Diagnostic Resolution
Alarm
Check start capacitor
Lockout
Alarm
Check incoming power
Lockout
Alarm
Check incoming power
Lockout
Check to see if compressor is
Warning
tripped on protector
Check system cause of high
pressure trip
Alarm
Check if circuit breaker is
Lockout
tripped (It provides power to the
high pressure switch)
Alarm Check system cause of high
Lockout
Check to see what is causing
Alarm the system to run at a higher
condensing temperature
Warning
Warning Check refrigerant charge
Check to see if proper
Warning
superheat is being maintained
Warning Set the real time clock
Reload factory settings with the
Warning hotkey and reset the real time
Reload factory settings with the
Alarm
Reload factory settings with the
Lockout
30
Check start component wiring
Check wires are properly routed
through controller current
transducers per wiring diagram
Check to see if contactor is
Check contractor control circuit
wiring per wiring diagram
Ensure wiring to terminal C2
of the controller is correct per
the wiring diagram and C2 is
Verify high pressure switch
is working properly or needs
Faulty temperature sensor.
Check sensor values versus
DLT
Faulty temperature sensor.
Check sensor values versus
EVI injection valve may not be
Replace faulty controller
clock
Replace faulty controller
hotkey
Replace faulty controller
hotkey
AE5-1412 R1
Possible Fix
per diagram
functioning properly
receiving power.
replaced
section 12.
section 12.
clogged or blocked