Troubleshooting
Review the possible solutions below. If the problem persists, please visit www.tripplite.com/support for service.
Problem
The unit does not function.
Cooling performance is unsatisfactory. The air exhaust or intake is blocked.
The unit leaks water.
The unit has ice or frost buildup.
Additional Display Codes
Display Code
Description
df
Unit is in Defrost Mode
E1
Indoor Temperature Sensor Error
E2
Internal Temperature Sensor Error
E4
Water Full Error
Possible Cause
The unit is turned off.
The unit is not plugged in.
Main power is off.
The temperature setting is too high.
The fan speed setting is too low.
The air filter is dirty.
The wattage of the rack enclosure, the size of
the room or the ambient temperature exceeds
the cooling capacity of a single unit.
The drainage plug is not installed.
The unit is operating in an environment that is
too cool or has excess humidity.
Defrost Mode
If the "df" code appears, it means the unit detected an icing problem and has started a defrost
cycle. The compressor will stop and the upper motor will continue to run at high speed for
3.5 minutes.
If the icing problem clears up, the unit will return to normal operation. If the code returns,
check the humidity and temperature of the operating environment. An environment that is too
cool or has excessive humidity can cause icing problems. If the operating environment is normal
and you are still getting the "df" code, contact Tripp Lite for further instructions.
Error Codes
The Tripp Lite SRCOOL7KRM has the ability to continually monitor itself. Should an error occur,
the display will show one of 3 error codes to the left:
Code E4 can be cleared by emptying the water tank. Consult the Alarm entry in the Operation
section for details.
For Codes E1 and E2 follow these steps:
1. Power cycle the unit by unplugging it from the source for 5 minutes.
2. Plug the unit back in.
3. Restart the unit.
If the code remains clear, continue to operate the unit as normal. If the code returns, please
contact Tripp Lite for further instructions.
Possible Solution
Turn the unit on. (See "Operation" section.)
Plug the unit into a suitable outlet.
Check fuses or circuit breaker.
Confirm that all ducts and intakes are clear of obstructions.
Adjust the temperature setting.
Adjust the fan setting.
Clean the air filter.
Install additional units or contact Tripp Lite for additional cooling solutions suitable for
your application.
Insert the drainage plug in the drainage outlet. (See "Installation" section.)
OPTION 1: Turn off the unit, and let the unit defrost. Once defrosted, ensure the unit
is operating with the fan speed set on HIGH.
OPTION 2: Turn off the unit, and let the unit defrost. Once defrosted, operate the unit
in DEHUMIDIFY MODE, or increase the desired temperature setpoint.
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