20 Most Recent Santa Fe 4027450 Dehumidifier Questions & Answers


Joe, there are 5 basic, but solvable reasons for what you described. Please pay particular attention to numbers 1 & 2.

1. The humidity extraction level is set to HIGH. Lower it to 32-35%.

2. Air intake filter is dirty or clogged. Turn unit OFF, & Unplug the
Unit, before removing to inspect & clean it, if necessary. If washed,
allow filter to completely dry before reinstalling. DO NOT operate
the unit without the filter.

3. Obstructed air flow. Maintain a minimum of 12 to 18" of clear air
space around the entire unit.

4. Cooling coils are dirty and need to be cleaned. Use warm water & dish washing liquid to
clean the coils. Rinse and wipe dry. Apply a light coating of WD40 to the coils.

5. Ambient air temperature at floor level is between 40 - 60 degrees.
dehumidifiers do not work well between those temperatures
(Unless, you have a Low Temp Unit). This applies mainly to
where the air temperature at floor level is colder than at shoulder
level
in basement applications. Raising the unit up off the floor,
onto a sturdy table, counter top, etc, that can handle the weight
of the unit, plus a full tank of water, will usually resolve this
problem.

If none of the above solves the problem, it may be a case of the compressor needs to be recharged with refrigerant gas or that the humidity condenser sensor has failed. These things usually occur in units that are 5 years old or older. It's rare in a unit younger than that. But, it can happen.

I hope this helps you troubleshoot and solve the problem. Thanks for choosing FixYa.

Santa Fe 4027450... | Answered on Aug 03, 2011


You should check if the compressor is running. Your description makes it appear that the fan may be running and the compressor may not be running.

There are many things that can cause a compressor to cease running:

Open defrost thermostat
Bad run capacitor
Low refrigerant charge (caused by refrigerant leak)
Bad compressor relay
Bad compressor overload
Bad compressor motor

Other things to check:

If the fan switch is set to "on" and the humidity control is set to a high humidity level, the unit may appear to be running, but the compressor will not operate. Check the setting of your humidity control.

If the dehumidifier is operating in a room with a high temperature and a low dew point (very low relative humidity), it may be unable to remove any more moisture from the air.

If you are not comfortable troubleshooting the unit on your own, call the manufacturer service department at 1-800-533-7533, EXT 8459. They are very helpful.

Santa Fe 4027450... | Answered on Mar 07, 2011


The incoming air temperature has alot to do with how well a unit works. As the basement area warms up the dehu always works better. The water leak may be caused by a plugged drain line or a crack in the plastic drain pan in the 150 Max. Please call the Thermastor Tech Line at 800-533-7533 x 8459. Let's see if we can help determine what is going on.
Dwaine
Thermastor Service Dept

Santa Fe 4027450... | Answered on Apr 26, 2010


Call the factory at 1-800-533-7533 for help troubleshooting your noise.

Santa Fe... | Answered on Sep 30, 2014


Are you keeping all of the metal covers in place while the machine is running? If you remove some of the metal covers, the fan may not move the air through the dehumidifier as intended.

If the compressor runs (with all of the metal covers in place) and the accumulator does not become cold, there are a few things that may be affecting your dehumidifier.

1. low refrigerant charge - you may have a refrigerant leak.
2. blocked capillary tube or broken expansion valve.
3. blocked air filter prevents enough air from moving through the dehumidifier.

Good Luck - DryDog

Santa Fe... | Answered on Aug 16, 2010


Contact Air Force directly to request the manual.

Dehumidifiers | Answered on Jan 15, 2021


how do i stop the alarm coming on after 30seconds ive cleaned the filter but light still comes on

Dehumidifiers | Answered on Dec 07, 2020


E9 is plugged drain line normally a ki nk in the hose or it’s pluged up

Dehumidifiers | Answered on Nov 20, 2020


Contact Hydrofarm directly to request a manual for model acdh20a. In it, you will find instructions for use.

Dehumidifiers | Answered on Oct 29, 2020


I got this UberHaus dehumidifier and I was not given instructions on how to use it properly

Dehumidifiers | Answered on Oct 07, 2020


If you are referring to your humidity setting for an average basement in summer heat between 55%-60% finding 60% to be more ideal.

Dehumidifiers | Answered on Sep 09, 2020

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