2017 Emerson Climate Technologies, Inc - Emerson XJAL-020Z-CFV-012 Manual

Code Code
Character Character Fault Type
1 2
PHE vapor out
sensor failure
(Only in XJAL
1 C
CDU)
(See Table
12)
Compressor
Rapid Cycling
2 0
Fresh Start
Reverse
Phase/Loss of
2 1
phase
(3 phase only)
2 3
Over Current
© 2017 Emerson Climate Technologies, Inc.
Control Board
Trip to Set Point
Actions
-Vapor out sensor
-Display sensor error
reads <3.2°F or
on diagnostics
>163°F
-Continue to run unit
-Ambient temp reads
on default mode
>50°F
-Delay compressor
See Page 8.
start, if minimum off
Minimum off time
time is less than 3 min
can be selected via
-Display about to turn
jumper setting
on diagnostic
Occurs on:
-Compressor runs 3
-initial unit start,
sec and stops 20 sec
-When power is reset
-After 3 cycles,
<95°F ambient
compressor runs
Compressor is
continously
cycled off > than 1
-Display fresh start on
hour < than 95° F
diagnostic
ambient
-Stop the unit
-Display the incorrect
phase
Incorrect phase -Display waiting to
sequence restart on diagnostic
-Check the phase
sequence after 3
minutes
-Stop the Unit
-Display over current
trip on diagnostic
-Display waiting to
Set based on
restart on diagnostic
Compressor
-Auto start the unit
after 3 minutes
-Lockout unit if 6 trips
in less than 12 hour
30
AE5-1377 R3
Auto
Possible Error and Solution
Resets
-Check whether actual temperature is
out of range
-Check whether the sensor is
connected to the control board
-Check whether the sensor is mounted
Run
at the right position
-Check whether the sensor is in trhe
heat isolation material
-Check whether the sensor has failed
-Compressor start signal is active when
Auto Start unit stops; the only thing needed to do
is wait until the unit starts
Auto Start No faults detected, unit about to start.
Compressor Phase Reversal senses
for the correctphase sequence on three
phase applications. Reset is automatic
Auto Start
once the correct phase sequence is
sensed.An error message will be
shown on the diagnostic LED.
* Check rotary switch, make sure it is
on the right position according to the
unit model, Reference Table 7
5 Auto
* Check system operating pressures
Starts in 1
* Check voltage supply at the
Hour
compressor terminals, must be with in
the +/- 10% voltage tolerance of the
comprressor nameplate.