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.
|Component to Check
|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
Correct wiring. Refer to the Humidity Sensor Wiring diagram and reference the helpdesk article: Reconnecting a Loose Humidity Sensor
|Defective humidity sensor
|Replace Humidity Sensor