MovinCool CM25 - Manual (Page 49)

49
SELF-DIAGNOSTIC CODES & BUZZER
PATTERN
Self-Diagnostic Codes
Self-diagnostic codes are displayed with
“CHECK” on LCD panel of the supplied
wall mounted controller under the following
conditions.
Note: When using the field supplied wall
thermostats, the self-diagnostic codes are
not displayed. Check buzzer pattern to
distinguish each code. For remedy, see
“Troubleshooting” from page 53 to 57.
Table of Self-Diagnostic Codes
Self-Diagnostic
code
AL
Self-Diagnostic codes
(Wall mounted
controller only)
Condition Remedy
See
“Troubleshooting”
from page
53 to 57.
1
Buzzer
Pattern
Fire alarm is activated.
PU
3
Overflow protection is activated (internal pump).
E07 Overflow protection is activated (optional pump).
HP 4 High pressure protection is activated.
E01
2
Sensor fail
(RTS1: Wall mounted controller room thermistor)
E02
Sensor fail
(RTS2: Evaporator air inlet thermistor)
E03
Sensor fail
(ODS: Outdoor thermistor)
E04
Sensor fail
(CTS1: Condenser thermistor)
E05
Sensor fail
(CTS2: Evaporator pipe inlet thermistor)
E06
Sensor fail
(CTS3: Evaporator pipe outlet thermistor)
E08
4
Wall thermostat communication error
E09
Evaporator fan motor over current protection is
activated.
E10
Condenser fan motor over current protection is
activated.
OL Compressor overload protection is activated.
E11 Relay board communication error
E12 Compressor error
E13 Relay board error