TROUBLESHOOTING GUIDE

SYMPTOM

 

TROUBLESHOOTING PROCEDURE / POSSIBLE REASON

Dehumidifier is producing

 

• Reheat of outgoing air will cause a temperature increase across the dehumidifier.

hot air.

 

• Unit will possibly run continuously initially. After unit has “dried” home,

 

 

 

 

dehumidifier will cycle, reducing load.

 

 

 

Dehumidifier Blower is running,

 

• Normally Open Damper was used instead of Normally Closed Damper in backflow.

but no airflow.

 

• Total HVAC system static is higher than 0.8” w.c.

 

 

 

 

 

Dehumidifier not adequately

 

• Unit will need time to “dry” materials in home before effectively changing RH.

dehumidifying.

 

• Too little airflow through dehumidifier.

 

 

 

 

• Total HVAC system static is higher than 0.8” w.c.

 

 

• Compressor is not turning on.

 

 

• System undercharged.

 

 

 

Dehumidifier is not

 

• Check condensate trap to be sure it is clear.

draining properly.

 

• Check drain line for continuous slope.

 

 

 

 

 

HVAC fan does not turn

 

• Make sure there is power to the HVAC equipment.

on when cycle time dial is

 

• Check the wiring diagram for the R, C, W, Y, GH, and GS at the HVAC equipment,

in “TEST” mode.

 

 

thermostat, and the dehumidifier.

 

 

 

 

• Make sure the sensor is connected to the Outdoor Temperature Sensor terminals

 

 

or the System Setup block is set to “TIMED” mode.

 

 

• Check the voltage across the R and C terminals at the dehumidifier. Voltage

 

 

should be 18 VAC minimum - 30 VAC maximum.

 

 

• In “TEST” Mode, the HVAC fan will activate for 1 minute, DO NOT LEAVE IN TEST

 

 

MODE AS DEHUMIDIFIER WILL NOT OPERATE.

 

 

 

The dehumidifier damper does

 

• Follow all of the system checkout procedures.

not open in “TEST” Mode.

 

• Check the wiring diagram for the damper and 24 VAC transformers.

 

 

 

 

 

Fan cycling operates

 

• If the HVAC equipment is making a Heat or Cool call, or the fan is in Continuous

continuously after the dial

 

Operation, fan cycling will remain on until the requirement set by the cycle

is taken off “TEST” mode.

 

period dip switch and knob is met.

 

 

• If the interval is set at 1 HOUR and the cycle time is set at 60 minutes, fan

 

 

cycling will be on continuously. Change the setting to a lower amount if this is

 

 

not desired.

 

 

 

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Aprilaire 1700 installation instructions Troubleshooting Guide
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1700 specifications

The Aprilaire 1700 is a high-performance dehumidifier designed to effectively control humidity levels in residential and commercial spaces. This unit is particularly suitable for larger areas, with the capability to remove up to 70 pints of moisture per day, making it an ideal choice for basements, crawl spaces, and other large rooms prone to excess humidity.

One of the standout features of the Aprilaire 1700 is its durable construction. Built with robust materials, this dehumidifier is designed to withstand the rigors of continuous operation, ensuring longevity and reliable performance over time. Its compact design allows for easy installation, even in tight spaces, further enhancing its versatility.

The Aprilaire 1700 utilizes advanced dehumidification technology, featuring a 2-stage filtration system that not only removes moisture but also captures airborne allergens like dust and pollen. This makes the air in the home healthier and more comfortable for occupants, especially those with allergies or respiratory issues.

Another key characteristic of the Aprilaire 1700 is its built-in hygrometer, which allows for precise monitoring of humidity levels. The unit automatically adjusts its operation based on real-time humidity readings, ensuring optimal performance and energy efficiency. This smart technology helps in maintaining consistent humidity levels, preventing problems associated with excess moisture, such as mold growth and structural damage.

The unit can be integrated seamlessly with existing HVAC systems, allowing it to work in conjunction with your home’s heating and cooling systems for enhanced climate control. This integration also ensures quieter operation compared to portable dehumidifiers, making the Aprilaire 1700 an unobtrusive option for whole-home humidity management.

User-friendly controls on the unit allow for easy adjustments, enabling homeowners to set their desired humidity levels with ease. Additionally, the Aprilaire 1700 is designed for minimal maintenance, featuring a washable filter that can be cleaned and reused, contributing to cost savings over time.

In conclusion, the Aprilaire 1700 is a powerful and efficient solution for managing indoor humidity levels. With its robust construction, advanced technologies, and user-friendly features, it offers both comfort and peace of mind for homeowners looking to protect their living spaces from the negative effects of excess moisture. By investing in an Aprilaire 1700, users can enjoy a healthier indoor environment year-round.
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