Table of Contents
Code
Description
L51
Cold-start lockout alarm
E52
Liquid watch
E53
Digital compressor down
E54
Fixed compressor down
E55
Fan f ailure
E60
Max pressure alarm of superheating Not used
E61
Min pressure alarm of superheating Not used
E62
High superheating alarm
E63
Low superheating alarm
E64
High room temperature alarm
E65
Low room temperature alarm
E66
Open door alarm
E80
rtC warning, date error
E81
rtC warning, communication error
AGL_Unit_LOCU_EN_Rev00
Cause
Action
Number of cold-start
alarms due to suction
pressure exceeds
parameter D34 setting
Digital compressor turns off and is
or number of cold start
locked out
alarms due to
discharge line
temperature exceeds
parameter D33 setting
Digital input for liquid
Warning signal only
receiver level open
Digital input for digital
compressor open and
Warning signal only
digital compressor
active
Digital input for fixed
compressor open and
Warning signal only
compressor active
Fan alarm contact open Warning signal only
Not used
Not used
Not used
Not used
Not used
HW problem in the
Disable the rtC or change the board
board
HW problem in the
Disable the rtC or change the board
board
Reset
Hold "start" button for 5 sec or manual power off
and on
Check the gas charge; check for leaks
Check compressor protection
Check compressor protection
Check f ans protection
0
0
47
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