I/O expansion module faults and fan operating modes
Table 13: I/O expansion module LED & fault outputs
Baseboard Communication Fail
Compressor #2 High Pressure (HP2)
Compressor #2 Low Pressure (LP2)
Compressor #2 Low Suction Temp (LT2) Sensor Fail
Compressor #2 Low Suction Temp (LT2)
Entering Water Temp Sensor Fail (with Boilerless Electric Heat and Waterside Economizer)
Low Entering Water Temperature (No Display with Boilerless Electric Heat)
Note: Mode / Faults are listed in order of priority.
OM 1239
Description
Fan is OFF
Fan is ON
M
Type
Fault
Fault
Fault
Fault
Fault
Fault
Fault
Mode
Mode
22
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Yellow
Green
Flash
OFF
OFF
OFF
OFF
OFF
Flash
Flash
Flash
OFF
ON
OFF
OFF
ON
OFF
ON
OFF
Flash
www.DaikinApplied.com
Red
Flash
Flash
ON
ON
OFF
Flash
Flash
OFF
OFF
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