Question about Amcor AD400E Dehumidifier

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AMCOR AD 400E Dehumidifier----humidity display reading "HI"

We've had this machine for about three years now with no trouble. Recently we noticed the digital display is reading "HI", when it normally reads the current humidity in the room. I also don't believe the compressor is shutting off, but running steady. It appears to be doing its job since there is water being pumped out regularly. However I don't believe the humidity is really that high right now, probably about 55%. I'm suspecting that the humidistat may be bad on the machine? I did thoroughly clean the coil and dust around the humidistat. Thanks in advance for your help.

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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MNTECH
  • 1543 Answers

SOURCE: Dehumidifier problem

First, make sure the rectangular filter on the back side is clean so air can flow over the coils freely. Try to place the dehumidifier on a table or something to get it off the floor. (floor level is cooler than head level) If you still have icing issues, replace sensor. (part # WK23X10011 )

Posted on Sep 01, 2008

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  • 117 Answers

SOURCE: AMCOR SD10 Dehumidifier, Need to replace the electric fan motor.

Take it out, and search the part number on line, they are bout $40 with s/h. however my current discovery:
It made no sense to me that despite no visual issues, the fan motor is bad. So, with further research it turns out that the true culprit is the small thermistor/thermal fuse between the orange wire (ground) and motor winding wire. The thermistor is taped underneath the silver aluminium and yellow tape on the fan motor. I heard about this bad (open/no continuity) thermistor makes almost >99% of the fan motor problem regardless of any brand name because this cheap c-fram fan motor is NOT made in USA. I opened the motor, there is a silver (aluminum wrap) around the windings for the motor that needs to be cut. Careful not to cut the motor windings. Inside there is a thermistor or type of temperature sensor connected between the orange wire and a motor winding wire. On my motor this was no longer working.
The part marked "JET 123 NM1 2A 130C" is a thermal fuse. The 130C is the temperature rating. When the motor get hot (130C / 265F) the fuse opens. The circuit is broken and the motor stops.

The motor is still good. The fuse is blown. It must be replaced to get the motor running again. You could bypass the fuse but then you invite a fire hazard.

A replacement fuse is available from Digi-Key. It is a Cantherm SDJ1 DF128S (128C):
http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=317-1133-ND

Part cost 98 cents

You might want to go with the next higher temp (141C):
http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=317-1134-ND

Posted on Jan 05, 2010

  • 117 Answers

SOURCE: I have an lg dehumidifier LHD 45EL. The humidity

Possibly the primary humidity sensor behind right side grill. Unit MUST be unplugged from outlet. Take right side grill out, unplug sensor from wire socket and plug back. If no help, you need new sensor.

Posted on Jan 05, 2010

  • 1 Answer

SOURCE: DeLonghi DEN500P Dehumidifier Humidistat

I have the delonghi DEN500P and the unit runs but does not condense any moisture? The appropriate buttons have been set to bring the unit humidity setting well below humidity in room

Posted on Apr 24, 2010

  • 1156 Answers

SOURCE: My Haier dehumidifier #HD656E will not start up

Haier is a Chinese home electronics and domestic appliance manufacturer headquartered in the Qingdao district of the city of Shandong. The company makes a range of home dehumidifiers that are designed to reduce the amount of airborne moisture in a room. If you have problems getting your Haier dehumidifier to start, you can run through a few simple troubleshooting steps to try and resolve the problem.


Instructions

1.Verify that the dehumidifier is plugged in and the outlet is getting power. Make sure the dehumidifier is turned on. Plug in a lamp to test the power supply; if it does not light up, make sure the fuse or breaker has not been tripped.

2.Pull the water bucket from the front of the dehumidifier and empty its contents. The dehumidifier will stop working to prevent the bucket from overflowing. Replace the bucket and wait about three minutes before starting the dehumidifier again.

3. Make sure that air can circulate around the dehumidifier and that the filter is clean. Curtains, blinds and furniture can limit the amount of air going into the machine and cause it to stop. Place the dehumidifier away from any obstructions. Pull the filter from the back of the machine and clean it with a vacuum.

4.Unplug the dehumidifier and let it stand for a few minutes. Plug it back in and try switching it on again. This will allow the machine to reset itself.

5.Contact Haier for repairs. If these steps fail to solve the problem, you may need to repair or replace your dehumidifier. You may be entitled to free repair or replacement if your Haier appliance is within its warranty period.

Hope it helped

Posted on Jun 18, 2011

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