Ensure the air inlets (vents) are not obstructed and clean.
Note that the fans of the models produced from 2015 onward will shut off together with the compressor once the set humidity level is reached.
Question: Why is my unit leaking?
Possible reasons and troubleshooting steps:
The unit may be tilted or not leveled. Make sure it is on a flat and leveled surface.
The drain bucket might be cracked or damaged. Remove the bucket, fill it with water, and inspect for any cracks or dripping water.
The float may be stuck, hindering proper water level detection. Ensure the float rises with the water level to trigger the water full indicator.
The drain hose (gravity or pump) could be curled, kinked, or clogged, preventing proper water drainage. Check and ensure the hose is straight and free from blockages.
Question: Why is the dehumidifier making noise and vibrating?
Possible reason and solution:
The noise may be coming from the fan. There may be loose or damaged internal parts.
Please contact Whynter Customer Support for service.
Question: Why is the dehumidifier not collecting water?
Possible reasons and troubleshooting steps:
Set the unit at least 10% below the room’s relative humidity level for the compressor to turn on and the unit to collect water. (Turn off Comfort mode and Continuous mode to set the humidity level, if applicable). Note that the compressor may take up to 3 minutes to turn on. If the compressor is still not turning on, please contact Whynter Customer Support for service.
Make sure that the float is not stuck and is freely moving.
Question: Why is the dehumidifier not pumping water?
Consider the following:
Ensure that the unit is collecting water but that it is filling into the water bucket.
If not collecting water, set the unit at least 10% below the room’s relative humidity level for the compressor to turn on and the unit to collect water.
Question: Why is the dehumidifier’s compressor on but not collecting water?
Recommended action:
Please contact Whynter Customer Support for service.
Question: Why is the water not draining through the gravity drain hose?
Possible solutions:
Make sure the unit is on a flat and leveled surface.
Ensure that the float is not stuck and is freely moving.
Check that the drain hose is straight and not blocked or kinked. Inspect for internal blockages or loose connections.
Please contact Whynter Customer Support for service if the water continues to collect in the bucket.
Note that this is for gravity draining, so the drain hose should be positioned downwards for proper water drainage from the unit.
Question: Why is the dehumidifier not pumping water?
Possible solution:
(Applicable only to models RPD-302W, RPD-702WP, RPD-503SP, RPD-551EWP, RPD-561EGP) Make sure that when connecting the pump line, install it firmly until it clicks.
If properly connected but still not pumping, the pump may have an internal loose connection.
Contact Whynter Customer Support for service.
Question: Why is the dehumidifier not pumping water?
Specific steps for applicable models (RPD-501WP, RPD-711DWP, RPD-951DXP, RPD-506EWP):
Some units require pushing the PUMP button until the pump light illuminates to activate the pump function.
Ensure the PUMP filter is in place.
Confirm that the float in the bucket is not stuck and moves freely, rising with the water level.
Question: Why is the dehumidifier not pumping water?
If using gravity draining, the gravity hose may not be installed properly.
Inspect the hose connector for cracks or damage.
If the leaking persists, contact Whynter Customer Support for service.
Question: Why does the dehumidifier not start, and the unit is not turning on?
Possible reasons and troubleshooting steps:
The automatic switch, line fuse, or breaker may have tripped. Flip the switch, change the fuse, or turn the breaker back on. If other appliances are drawing too much power on the same circuit, consider redistributing them to another circuit.
The power supply voltage may be too low. Ensure the wall outlet can support the required power consumption of the dehumidifier and is not connected to an extension cord. Move the unit onto another circuit with the correct voltage.
The power cord may be damaged. If found, contact the retailer the item was purchased from or contact Whynter Customer Support.
The drain bucket may be full. Empty the drain bucket. Connect the gravity drain hose for continuous operation or activate the pump for some models. If the red light continues to flash, there may be a loose internal connection. Contact Whynter Customer Support for service.
Question: Why is my unit leaking?
If using a pump:
The pump hose might not be installed properly.
Gently tug the pump hose to verify proper insertion.
Inspect the pump connector for defects.
If properly connected but still leaking, there may be a loose connection or damaged internal hose.
Question: Why is odor and smoke not being removed?
Possible reason and solution:
The unit may be unable to circulate air.
Install the unit in a place where air can circulate freely.
Question: Why is the dehumidifier making noise and vibrating?
Possible reason and solution:
If the noise is coming from the compressor, be aware that the compressor makes a louder, deeper sound while operating.
You may contact Whynter Customer Support and submit a video clip for verification.
Frequently Asked Questions for Whynter Air Purifiers (models AFR-300-BL AFR-300-BU AFR-300-PK AFR-300-PL AFR-425-PW AFR-425-SW)
Question: Why are odor and smoke not eliminated?
Possible reasons and solutions:
The filters may be dirty. Clean or replace the filters.
Ensure the unit is installed in a place where air can circulate effectively. Provide enough clearance around the unit for proper airflow.
Question: Why does air not flow from the unit?
Possible solutions:
Ensure the air inlets are not obstructed.
Make sure that the air outlet vents are clean and not blocked.
Question: Why does my unit not start?
Possible reasons and troubleshooting steps:
There might be a power supply failure. Ensure that the air purifier is plugged in, and the power outlet has power.
If the front cover is not properly installed, it can prevent the unit from starting. Install the front cover properly. Gently hit or press down the cover to ensure it makes the connection.
Check if the 2-in-1 Activated Carbon and HEPA Filter are properly installed. Incorrect installation may hinder the unit from starting. Install the filter properly.
Question: Why does the filter replacement indicator remain on after replacement?
Possible solution:
Restart the unit by unplugging it.
Press and hold the Sleep icon for 5 seconds to reset the Air Quality Filter indicator after replacing the filter.
Question: Why does the remote control not work?
Possible solution:
The remote control may have no power. Replace the battery in the remote control.
Question: Why does the unit always run in the highest speeds in Automatic mode?
Possible solution:
The Air Quality Sensor may have dust on it and needs cleaning. Clean the Air Quality Sensor.
Question: Why is the air purifier noisy and vibrating?
Possible solution:
Ensure the unit sits on a hard and level surface. Do not place the unit on carpet.