143
Table 63 — CoreSense Communication Module DIP Switch Settings
*Settings for Kriwan retrofit. See “CoreSense Replacement of
Kriwan Motor Protection Module” on page 140.
Table 64 — CoreSense Communication Module LED Flash Codes
COPELAND
ELECTRICAL
CODE
DIP SWITCH
12345678 910
“TE” ON OFF OFF OFF OFF OFF OFF OFF ON OFF
“TW”* ON OFF OFF OFF OFF OFF OFF OFF OFF OFF
LED STATUS FAULT CONDITION
FAULT CODE
DESCRIPTION
FAULT CODE RESET
TROUBLESHOOTING
INFORMATION
SOLID GREEN
None, normal operation Module is powered and
under normal operation
Not applicable None
SOLID RED
Module malfunction Module has an internal fault Not applicable 1. Reset module by removing
power from T1-T2.
2. Replace module.
WARNING LED FLASH
GREEN FLASH CODE 1
Loss of communication Module and Master Control-
ler have lost communica-
tions with each other for
more than 5 minutes
Automatic when communi-
cations are re-established
Not Supported. Check DIP
Switch settings.
GREEN FLASH CODE 2 Not used Not applicable Not applicable Not applicable
GREEN FLASH CODE 3
Short cycling Run time of less than 1 min-
ute. Number of short cycles
exceeds 48 in a 24-hour
period.
Fewer than 48 short cycles
in 24 hours
38AP controls do not allow
this operation normally. Con-
firm proper wiring and DIP
switch settings.
GREEN FLASH CODE 4
Open/Shorted Scroll
Thermistor
Not applicable Not applicable Not applicable
GREEN FLASH CODE 5 Not used Not applicable Not applicable Not applicable
ALERT/LOCKOUT LED FLASH
RED FLASH CODE 1
High motor temperature Thermistor resistance
greater than 4500 :. Lock-
out occurs after 5 alerts.
Thermistor resistance less
than 2750 : and 30 min-
utes have elapsed
1. Check power supply.
2. Check system charge and
superheat.
3. Check compressor
contactor.
RED FLASH CODE 2
Open/shorted motor
thermistor
Thermistor resistance
greater than 4500 :, or less
than 100 :. Lockout occurs
after 6 hours.
Terhmistor resistance is
between 100 and 2750 :
and 30 minutes have
elapsed
1. Check for poor connec-
tions at module and therm-
istor fusite.
2. Check continuity of therm-
istor wiring harness.
3. Check for an open thermis-
tor circuit.
RED FLASH CODE 3
Short cycling Run time of less than 1 min-
ute. Lockout if the number
of alerts exceeds the num-
ber configured by the user
in 24 hours.
Interrupt power to T2-T1 38AP controls do not allow
this operation normally. Con-
firm proper wiring.
RED FLASH CODE 4 Scroll high temperature Not applicable Not applicable Not applicable
RED FLASH CODE 5 Not used Not applicable Not applicable Not applicable
RED FLASH CODE 6
Missing phase Missing phase detected.
Lockout after 10 consecu-
tive alerts.
After 5 minutes and missing
phase condition is not pres-
ent
1. Check incoming power.
2. Check fuses or circuit
breakers.
3. Check compressor contac-
tor.
RED FLASH CODE 7
Reverse phase Reverse phase detected.
Lockout after 1 alert.
Interrupt power to T2-T1 1. Check incoming power
phase sequence
2. Check compressor contac-
tor
3. Check module phase wir-
ing A-B-C.
RED FLASH CODE 8 Not used Not applicable Not applicable Not applicable
RED FLASH CODE 9
Module low voltage Less than 18 vac supplied
to module
After 5 minutes and voltage
is between 18 and 30 vac
This alert does not result in a
lockout fault.
1. Verify correct 24 vac mod-
ule is installed.
2. Check for a wiring error.
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