Why is my Whirlpool Dehumidifier not dehumidifying?
Your Whirlpool Dehumidifier may not be dehumidifying because: * The unit could be out of refrigerant. You should follow the sweep charge procedure to find and repair any leaks. * The humidity might be too low. In this case, turn the unit off until the humidity rises. * The evaporator could be dirty, or the air filter might be blocked. Try cleaning the air filter and/or the evaporator.
What to do if my Whirlpool AD50USS Dehumidifier is not dehumidifying enough?
If your Whirlpool Dehumidifier isn't dehumidifying enough, consider these possibilities: * The area might not be sealed off properly; check for open doors and/or windows and close them. * The grilles could be obstructed. Ensure that the unit and surrounding items are positioned so that the grilles aren't blocked. * The evaporator could be dirty, or the air filter might be blocked. Try cleaning the air filter and/or the evaporator. * There might be a low refrigerant charge. Follow the sweep charge procedure to locate and repair any leaks. * The unit might be too small for the area. Try closing off the area to make it smaller.
How to fix a Whirlpool Dehumidifier fan that won't run but the compressor does?
If the fan on your Whirlpool Dehumidifier isn't running but the compressor is, it could be due to these reasons: * The fan motor might not be getting power. Check the wiring and repair or replace as necessary. * The fan motor might be defective. Replace the fan motor. * The fan blade could be jammed. Remove any obstruction, and replace the blade if it's damaged.
What to do if Whirlpool AD50USS Dehumidifier fan runs but the compressor doesn't?
If the fan runs but the compressor doesn't on your Whirlpool Dehumidifier, consider the following: * For mechanical models: the deicer thermostat may be open. Allow the evaporator coil to thaw. If it remains open after thawing, replace the deicer thermostat. * For electronic models: the thermistor may be out of range, or the evaporator temperature is less than 30°F. If the unit is in defrost mode, raise the room temperature. Otherwise, run diagnostics and replace the electronic control if needed. * The compressor overload or relay could be defective. Check both components and replace if defective. * The compressor windings might be open. Check continuity and replace if one or both windings are open.
Why won't my Whirlpool AD50USS run? (no fan or compressor)
If your Whirlpool Dehumidifier won't run (no fan or compressor), here's what to check: * Ensure the unit is turned “ON” and set dry enough. Set the control to “CONTINUOUS” to allow the fan and compressor to run regardless of the ambient humidity. * Verify the unit has power: * Make sure the power supply cord is plugged in. * Ensure the outlet has power; if not, have a qualified electrician correct the issue. * Check the bucket: * Empty the bucket. * Make sure the bucket is installed properly. * Check the bucket In/Water Level switch; replace it if defective. * Inspect the power supply cord and internal wiring. Repair or replace any defective parts. * Run diagnostics to check the humidistat. Replace the electronic control if needed.
General| Brand | Whirlpool |
|---|---|
| Model | AD50USS |
| Category | Dehumidifier |
| Language | English |
Introduction to the Job Aid, its purpose, and scope regarding dehumidifier operation and service.
Outlines the main goal and specific objectives for service technicians using this Job Aid for dehumidifier repair.
Emphasizes the importance of safety messages and defines DANGER and WARNING signals for user protection.
Explains the coding system for model numbers, including product group, capacity, features, series, and year of introduction.
Details the components of the serial number, such as manufacturing site, year, week of production, and product sequence number.
Identifies the location of the model and serial number label, typically found behind the water bucket.
Shows the location of the wiring diagram label, usually found inside the front half of the cabinet.
Defines humidity and explains its relationship with temperature and its impact on comfort and property.
Explains how a dehumidifier removes moisture using a refrigeration system with evaporator and condenser.
Describes initial frosting and operation in cool, dry conditions, and limitations for mechanical models.
Details low-temperature performance for mechanical and electronic models, including compressor cycling.
Explains the function of the humidistat and thermistor in electronic control models.
Describes the default operation mode for electronic models when sensors fail.
Explains how fan speed settings (High, Low, Auto) affect moisture removal and noise.
Describes how the dryness control adjusts moisture removal levels for desired humidity.
Explains the function of the light indicating bucket issues and how to resolve them.
Provides instructions for starting, stopping, and setting controls for dehumidifier models with Type 1 and Type 2 controls.
Details what the light signifies and the necessary actions if it is illuminated.
Explains the fan speed options available for dehumidifier models with Type 2 controls.
Explains how the dryness control regulates room moisture and initial usage recommendations.
Guides users on starting, stopping, and setting controls for Type 3 models.
Describes the meaning of the bucket light and troubleshooting steps for Type 3 models.
Details fan speed selections (Low, High, Auto) for Type 3 models.
Explains how to select desired humidity levels (Normal, Dry, Max Dry, Continuous Run) on Type 3 models.
Introduces methods for draining collected water, including a warning about consumption.
Details the procedure for manually emptying the water bucket when a floor drain is not used.
Describes how to connect a garden hose for continuous draining of collected water.
Provides important notes regarding hose removal and proper bucket alignment for operation.
Lists common sounds produced by the dehumidifier during normal operation, such as compressor and fan noise.
Provides instructions for removing, cleaning, and reinstalling the air filter for optimal efficiency.
Guides on cleaning the exterior surfaces of the dehumidifier, advising professional interior servicing.
Explains how to clean the water bucket and the importance of the water level float alignment.
Illustrates the locations of key internal components like the fan motor, compressor, and electronic control.
Crucial safety warning about disconnecting power before servicing any components.
Details initial steps for removing the cabinet, including unplugging and removing the water bucket.
Continues cabinet removal by detailing air filter removal and unscrewing the front and side panels.
Describes removing rear screws and separating the front and rear halves of the cabinet.
Instructions on disconnecting wire connectors from the electronic control unit.
Details removing the screws securing the electronic control assembly.
Steps to unclip and remove the thermistor and its ground wire.
Instructions for disconnecting wires from the bucket switch and compressor capacitor.
Steps to remove the power supply cord and the entire electronic control assembly.
Steps to remove the humidistat knob, screws, and the unit itself.
Instructions for disconnecting wires and unclipping the indicator light from the cover.
Details disconnecting the power supply cord wires from the compressor capacitor and bucket switch.
Instructions for removing the ground wire screw and the power supply cord from the dehumidifier.
Steps to discharge, disconnect wires, and remove the fan capacitor.
Instructions to loosen the blower screw, disconnect motor wires, and remove the fan motor.
Describes removing the top green ground wire screw from the condenser.
Details removing the screws holding the fan motor and pulling the motor out.
Steps to discharge, disconnect wires, and remove the compressor capacitor.
Instructions for disconnecting wires from the bucket switch terminals for electronic and mechanical models.
Steps to release the switch holder and unclip the bucket switch.
General checks like connector corrosion and required VOM/DVM sensitivity before testing components.
Steps to test the mechanical humidistat using an ohmmeter at different knob positions.
Procedure for testing fan and compressor capacitors using an ohmmeter after discharging them.
Instructions for testing the fan motor resistance using an ohmmeter based on motor type and capacity.
Steps to test the bucket switch continuity in both normal and actuated states using an ohmmeter.
Procedure to enter diagnostic mode using a specific key sequence on the control panel.
Details the steps in the diagnostic mode, including LED indicators for bucket switch, thermistor, humidistat, fan, and compressor.
Addresses problems where the unit won't start, listing causes like control settings, power, or switch issues.
Troubleshoots scenarios where the fan operates but the compressor does not, citing thermostat, thermistor, or compressor issues.
Covers issues where the compressor runs but the fan is not operating, due to power or motor problems.
Explains causes like cold temperatures or deicer thermostat issues when the coil is frosted.
Addresses lack of dehumidification due to low temperature, dirty filter, or refrigerant issues.
Covers causes for poor dehumidification like unsealed areas, blocked grilles, or unit size.
Presents the first wiring diagram, illustrating electrical connections for the dehumidifier system.
Shows the second wiring diagram, detailing electrical paths for fan switch and other components.
Provides the third wiring diagram, specifically for models with electronic controls.
Lists contact numbers for product specifications and warranty information for US customers.
Provides contact details for technical assistance and literature orders for US customers.
Lists contact numbers for product specifications and warranty information for Canadian customers.
Provides contact details for technical assistance for Canadian customers.
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