In software versions 13B40 and below, the Humidity Sensor Alarm occurs when the humidity exceeds 90% or when the sensor is disconnected. Humidity alarm only occurs if the sensor is disconnected in software versions after 13B40.
|Possible Cause||Component to Check||Recommended Action|
|Low heat load, site cools down without compressor||Free cooling humidity limit (U04 in L04 Menu)||Change to 80%. For extremely small heat load site, change to 60%.|
|Loose/incorrect sensor wire||Sensor wire|
Correct wiring. Refer to the Humidity Sensor Wiring diagram and reference the helpdesk article: Reconnecting a Loose Humidity Sensor
|Defective humidity sensor||Humidity sensor||Replace Humidity Sensor|