Manual 2100-620A - Bard D36A2P/BLD.10304 Installation And Service Instructions Manual

TROUBLESHOOTING TEC-EYE ALARMS
Signal Description
If the alarm activates
once or twice in
an hour, it is reset
automatically. If it
Low Pressure
occurs three times
Alarm
in an hour, the
compressor and
condenser fan are
locked.
If the alarm activates
once or twice in
an hour, it is reset
automatically. If it
High Pressure
occurs three times
Alarm
in an hour, the
compressor and
condenser fan are
locked.
Landline/Shore/
Alarm is reset
Prime Power
automatically.
Outage
The alarm is a warning
Dirty Air Filter to check the filter.
Alarm Alarm can only be
reset manually.
DC Free Cooling
Alarm is reset
Damper Fails to
automatically.
Open Alarm
Possible Cause Component to Check
Run the unit and
check if the low
Lack of refrigerant
pressure value is in
the normal range.
Check if the pressure
The switch is defective.
switch is OK.
Check if the
Check if the
connection to the
connection is OK.
corresponding input
Check is the
terminal is ok or if
controller board is
the controller board is
OK.
defective.
Check open door or
for abnormal site
Abnormal site condition. Check if
condition the high pressure
value is in the normal
range.
Check the condenser
Condenser fan has
fan status while the
failed. The condenser
high pressure is
fan speed controller
outside the normal
has failed.
setting.
Check if the high
The switch is defective. pressure switch is
OK.
Check if the
Check if the
connection to the
connection is OK.
corresponding input
Check is the
terminal is ok or if
controller board is
the controller board is
OK.
defective.
Primary power has
gone off.
Check if the filter is
Filter is clogged.
dirty.
Check if the
connection to the
corresponding input Check if the
terminal is OK or if the connection is OK.
PLC controller board is
defective.
The value set for the Check the differential
differential air pressure air pressure switch
switch is too low. value.
Check the damper
DC free cooling damper linkage. Check to see
fails to open. if anything is in the
way of the damper.
Device
Recommended Action
Actions
Charge appropriate Compressor/
amount of Condensor Fan:
refrigeration. Off
If defective, replace.
Reconnect the cables.
If the PLC controller
is defective, replace.
Compressor/
Clean the condenser. Condensor Fan:
Off
Replace the
condenser fan.
Replace the
condenser low
ambient (fan speed)
controller.
If defective, replace.
Reconnect the cables.
If the PLC controller
is defective, replace.
Indoor Blower:
On
Compressor/
Condensor Fan:
Off
Heat: Off
Damper: On
Clean or replace the
filter.
Reconnect the cable.
If the PLC controller
board is defective,
replace.
Correct the value of
the switch to standard
value.
Indoor Blower:
On
Damper: Off

Manual 2100-620A

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