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5. Operation
5.5 HOME Menu and Alarms
The HOME menu indicates if the unit is operational, the current operating conditions and if there are any active alarms.
The HOME screen displays the current temperature and the set temperature the unit is trying to achieve.
If an alarm condition is indicated, details can be viewed by touching the down arrow. The SRCOOL33K/SRXCOOL33K can sense and display
the following alarm conditions. (W) indicates a warning/advisory alarm; (!) indicates a fault that requires immediate attention.
Warnings
Alarm Conditions Display User Action
Supply air sensor failure 1 (W)SUP AIR SEN FAIL Call Tripp Lite for service.
Condenser in sensor failure 3 (W)COND IN SEN FAIL Call Tripp Lite for service.
Condenser out sensor failure 4 (W)COND OUT SEN FAIL Call Tripp Lite for service.
Evaporator temperature probe fault 6 (W)EVAP TEMP FAIL Call Tripp Lite for service.
Air filter blockage/clog 9 (W)AIR FILTER CLOG Check the air filter for any blockage. Replace the air filter.
Call Tripp Lite for service if error remains.
Air filter requires replacement 10 (W)AF HOURS EXCEEDED Check the air filter for any blockage. Replace the air filter. Reset the
Air Filter Hours menu. Call Tripp Lite for service if error remains.
Excessive return temperature 20 (W)RETURN AIR HIGH The alarm set point is too low and the unit cannot keep up with the
heat load. Reduce the heat load. If error remains, call Tripp Lite for
service.
Excessive supply temperature 21 (W)SUPPLY AIR HIGH The alarm set point is too low and the unit cannot keep up with the
heat load. Reduce the heat load. If error remains, call Tripp Lite for
service.
Low suction pressure 28 (W)LOW SUCT PRESS Call Tripp Lite for service.
Water leak 33 (W)WATER LEAK Identify the water leak and correct it.
Critical Faults
Alarm Conditions Display User Action
Return air sensor failure 2 (!)RET AIR SEN FAIL Call Tripp Lite for service.
Suction temperature sensor fault 5 (!)SUCT TEMP SENSOR Call Tripp Lite for service.
High discharge pressure 7 (!) HI DISCH PRESS Check for any blockage of the condenser. Call Tripp Lite for service.
Suction pressure failure 8 (!)SUCT PRESS FAIL Call Tripp Lite for service.
Communications between controller
and compressor have failed
12 (!)INVERTER COM FAIL Call Tripp Lite for service.
Remote shutdown has been closed 13 (!)REMOTE SHUT DOWN Reset the EPO or remote contact. If the error persists, call Tripp Lite
for service.
Water pump failure 14 (!)H2O PUMP FAIL Check for any water in the upper tray. If the tray is full, pump
the water out of the unit using the supplied hose and adjust any
humidification systems in use. If the upper tray is dry, call Tripp Lite
for service.
Condenser failure 18 (!)COND FAILURE Check for any blockage of the condenser. Call Tripp Lite for service.
Evaporator failure 22 (!)EVAP FAILURE Check the air filter and evaporator for any blockage. Call Tripp Lite for
service.
Evaporator icing 23 (!)EVAP ICE UP Check the air filter and evaporator for any blockage. Call Tripp Lite for
service.
Excessive discharge pressure 24 (!)HIGH DISCH PRESS Check for any blockage of the condenser. Call Tripp Lite for service.
Discharge switch failure 25 (!)DISCH SWITCH FAIL Call Tripp Lite for service.
Excessive system pressure 26 (!)HIGH SYSTEM PRESS Check for any blockage of the condenser. Call Tripp Lite for service.
System has run out of refrigerant 27 (!)LOW CHARGE Call Tripp Lite for service.
Persistent low suction pressure 29 (!)LOW SUCT PRESS Call Tripp Lite for service.
High and low pressures have not
returned to nominal
30 (!)LINE IMBALANCE Call Tripp Lite for service.
Compressor failure 31 (!)COMPRESSOR FAIL Call Tripp Lite for service.
Fan failure 34 (!)FAN FAIL Call Tripp Lite for service.