Desert Aire Aura QS - User Manual

Questions and Answers

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Kaitlyn YoderAug 4, 2025
What to do if my Desert Aire Aura QS compressor does not run?
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  Meagan McguireAug 4, 2025
  If your Desert Aire Dehumidifier's compressor isn't running, start by checking for a tripped circuit breaker or blown fuses to restore main power. Also, verify that the blower and compressor overloads haven't tripped; correct the cause and reset them if needed. Inspect the wiring for any loose or faulty connections on both the system and the dehumidifier. If the compressor starts but doesn't pump, or if the motor windings are shorted, the compressor may need replacement. Finally, if none of these are the cause, wait 3 minutes to account for any compressor delay time.
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Erin HartAug 10, 2025
How to fix a Desert Aire Dehumidifier when the blower does not run?
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  Rachel ShepherdAug 10, 2025
  If your Desert Aire Dehumidifier blower isn't running, ensure the “Occupied” switch is closed. Check for a loss of main power by looking for tripped circuit breakers or blown fuses. Make sure the damper isn't stuck or frozen, preventing the actuator end switch from closing; free the damper or replace the actuator if defective. Also, check if the blower overload has tripped; if so, correct the cause and reset it. Finally, inspect the control wiring for any loose or incorrect connections on the system and controller.
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nicholasmartinezAug 26, 2025
What to do if my Desert Aire Aura QS Dehumidifier has low pressure alarms or evaporator coil icing?
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  marycarrilloAug 26, 2025
  If your Desert Aire Dehumidifier is experiencing low-pressure alarms (below 97 PSIG) or evaporator coil icing, there are several potential causes. First, check the hot-gas bypass valve to ensure it's properly set to maintain 30°F suction (97 PSIG); replace it if defective. Ensure sufficient evaporator airflow by verifying the coil is clean and the belts are tight. Re-evaluate the system charge if there is a lack of refrigerant. Check the refrigerant filter-drier for restrictions and replace it if necessary. Evaluate the expansion valve performance and replace it if defective. Lastly, inspect the refrigeration piping for restrictions, such as kinks in the tubing or debris in the distributor.
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Jessica YangNov 18, 2025
Why does my Desert Aire Aura QS show high pressure alarms?
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  Jerry GrahamNov 18, 2025
  If your Desert Aire Dehumidifier is showing high pressure alarms or readings above the high-pressure trip set point, several factors could be responsible. For units with air-cooled condensers, ensure the coil is clean and there are no airflow restrictions. Check that the remote condenser blower is running and has power at the motor leads. For units with tower condensers, verify adequate water flow by installing a flow meter or circuit setter to ensure the correct flow rate. If the incoming water temperature is above 90°F, consult the factory for required flow rates. Purge the lines to eliminate excessive air in the condenser water lines, or install an air eliminator in the system piping. For 3-phase systems, reduce blower speed and reset the overload if it has tripped. Replace the contacto...

Summary

Safety and Operation Guidelines

Safety Warnings and Labels

Critical safety precautions, operating instructions, and definitions of safety labels.

Gas Heater Safety

Installation Procedures

Controls, Sensors, and Auxiliary Heating

Gas and Electric Heater Installation

Start-Up and Maintenance

Pre-Start-Up Checks and Procedures

Initial inspections, gas heater start-up, burner adjustments, and airflow balancing.

Refrigeration System Testing

Procedures for testing refrigeration circuits in dehumidification, cooling, and heat pump modes.

Routine Maintenance Schedule

Troubleshooting Guide

Blower, Compressor, and Pressure Issues

Troubleshooting steps for diagnosing blower, compressor, high/low pressure alarms, and coil icing.

Appendix and Forms

Compressor Issues and Replacement

Analysis of compressor failures and detailed procedures for replacement and system cleaning.

IAQ Sequence of Operation

Refrigerant Handling and System Testing

Procedures for refrigerant recovery, evacuation, charging, and leak detection.

Start-Up Reports and Forms

Compressor Replacement Form

Form Completion and Failure Analysis

Diagnostic and Corrective Actions

Desert Aire Aura QS Specifications

General

Refrigerant	R-410A
Application	Indoor pool, spa, and grow room dehumidification
Capacity	Varies by model
Airflow	Varies by model
Power Supply	208-230V, 3-phase
Operating Conditions	60°F to 95°F
Dimensions	Varies by model
Weight	Varies by model