- Step 1. Check the evaporator function first. The evaporators should be cold. The evaporator works to receive liquid...
- Step 2. Check the condenser function second. The condenser receives the hot refrigerant gas and turns it back into a...
- Step 3. Is the dehumidifier repairable? The dehumidifier may be repairable if the evaporator coils go cold.
Full Answer
What does the compressor do on a dehumidifier?
The compressor is a pump which compresses the refrigerant and circulates the refrigerant through the evaporator and condenser coils. If the compressor is not working, the dehumidifier won’t cool.
What to do if your dehumidifier is not working?
If you have verified that the compressor doesn’t run, then you can test the overload for continuity with a multi-meter. A common cause for the overload to fail is from operating the dehumidifier on long or undersized extension cords.
Why is my dehumidifier not blowing cold air?
From the above discussion, you can tell that a dehumidifier malfunction is likely a sign of compressor failure or malfunction. Nearly 90% of dehumidifiers in use today are compressor dehumidifiers.
What are the most common dehumidifier problems?
Some common dehumidifier problems include excessive noise, leaking water or a fan that isn’t working. Most of these repairs don’t require a lot of mechanical skill, but you still have to follow the right steps to do this repair. That’s where Repair Clinic comes in.
Why is my dehumidifier compressor not working?
The culprit could be a dirty fan or a broken fan blade. If comfortable checking inside the unit, unplug it and then remove the cover, then turn the fan blade by hand to see if either debris or a broken blade is keeping the fan from turning.
How can I tell if the compressor is working on my dehumidifier?
If the blower in the dehumidifier is running it is possible that the compressor is not operating. Check to see that the indicator light, on the dehumidifier, is confirming that the compressor is operating.
Can a dehumidifier be repaired?
If your dehumidifier doesn't work right, a simple cleaning of the condenser and moisture-collecting (evaporator) coils may be all that's necessary to fix it.
Is it worth getting a dehumidifier repaired?
At times, it may be worth repairing a dehumidifier for relatively cheap or as a DIY project. However, the average repair cost for a dehumidifier is $50 to $200. The more complicated the issue, the more expensive it will be. In this case, it may be worth investing in another instead of repairs.
How do you charge a dehumidifier compressor?
1:072:44How To Recharge A Dehumidifier | HVAC Training 101 - YouTubeYouTubeStart of suggested clipEnd of suggested clipStep one you can keep the dehumidifier. Running while applying the coolant. Step 2 remove the valve.MoreStep one you can keep the dehumidifier. Running while applying the coolant. Step 2 remove the valve. Cover. Step 3 attach the filler line to the valve. But don't open it.
How long should a dehumidifier last?
five to 10 yearsMaintain Your Appliance The lifetime of dehumidifiers usually ranges from five to 10 years. To maximize the lifetime, it's important to care for your dehumidifier. Be sure to regularly change the air filters, clean the condensing coils and exhaust grilles, and empty and clean the water bucket.
How do you service a dehumidifier?
Gently vacuum off the top layer of dust and grime or scrape it off with your hand. Use a soft-bristled brush or cloth to clean the coils with a spray detergent or mixture of vinegar and water. Rinse off any residue. Make sure you let the coils completely dry before using your dehumidifier again.
How do you reset a dehumidifier?
Try resetting the dehumidifier by disconnecting power to the unit for 30 seconds and re-connecting the power. Then, set the control settings and see if the unit operates properly.
What does a compressor do in a dehumidifier?
They differ from the peltier dehumidifiers above as they use a built-in compressor to cool down the coils as opposed to just the electric current from your mains. The compressor allows for coils of a much larger size to be chilled, and this larger surface means a lot more water can be condensed and collected.
How do you replace a capacitor on a dehumidifier?
1:064:41Fix Dehumidifier - Replace Capacitor (Compressor Won't Start) - YouTubeYouTubeStart of suggested clipEnd of suggested clipAnd a little plastic cap underneath. It go ahead and remove the screw. From the metal cap metal capMoreAnd a little plastic cap underneath. It go ahead and remove the screw. From the metal cap metal cap comes off you're left with this little plastic cap here it's held on by some plastic clips.
Why does dehumidifier compressor get hot?
Over time the air can cause a thick buildup of dust and dirt on the coils. Undue stress on the fan can cause it to overheat and fail. Restricted airflow can also cause compressor overheating. The dehumidifier evaporator (cooling) coil must be periodically cleaned with a vacuum cleaner.
Why does my dehumidifier keep stopping?
If your dehumidifier keeps shutting off, the sensor may not be reading the humidity level correctly, resulting in the unit shutting off before reaching the desired level. Some dehumidifiers also have a thermistor that works with the sensor which can also be faulty.
How do you check if a dehumidifier is working?
Unplug the dehumidifier and check if any of these components are loose. If yes, tighten them and run the machine. If the noise persists, then the components might be in need of a replacement. Check which internal part is the cause of the noise and test if there is a need to be replaced.
Should the compressor on my dehumidifier be hot?
Most dehumidifiers are designed to work at a room temperature of 65°F or above. Temperatures below 65°F can cause the coil to get too cold and freeze up. A frozen coil can cause compressor overheating. New “low temp” models are now available which allow operation down to 40°F.
Why is my dehumidifier running but not collecting water?
If your dehumidifier is not collecting water, the unit is not operating properly: Try resetting the dehumidifier by disconnecting power to the unit for 30 seconds and re-connecting the power. Then, set the control settings and see if the unit operates properly.
Why is my dehumidifier not lowering the humidity?
Check to make sure that all windows and doors are closed. Make sure the unit has proper air flow and that no curtains, blinds, or furniture is blocking the front or back of the dehumidifier. If used in a laundry area, install the dehumidifier away from the moisture laden air generated by the dryer.
Most Common Problems
Use the Repair Clinic dehumidifier troubleshooting guide to find out why your dehumidifier is not working. Start by looking at the list of symptoms. When you click on the right one, we’ll tell you what might be causing the problem.
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