I have a goldstar dehumidifier that runs for a couple min. then turns off. I unplugged the rheostat wires from the mother board and it runs just fine. Does that mean if I replace the rheostat switch the problem is solved or could the sensor be bad also. Thanks

My only guess is that there must be a relay inside the control panel that (like many relays) arced ar one time and partially welded itself in the on position. Good quality relays are plated with a high temperature melting point metal to prevent this. Being LG is Goldstar (a Korean company) they most likely use the cheapest relays. To solve this issue the relay needs a hard knock to it. (Don't hit it so hard as to break the circuit-board) :)

More than likely, the humidity extraction setting is set to high. Lower it to 35% or if you have manually controlled (No LED Screen) unit, set the control knob to Maximum.

Hope this helped you.

Hi,

The tank may be full. Your dehumidifier has a safety device that turns off the dehumidifier when the water tank is full. Usually the tank itself either presses against a switch or there's a device connected to the tank that triggers a switch when the tank is in place and full.

If you've emptied the tank and the unit still stops running after a min, inspect the place where the tank rests to see if there's a switch or mechanism that's not being activated. You may be able to turn it on with a simple flick of your finger.

Take care.

Your sealed sysyem has a leak and the unit is low on freon causing the compressor to overheat. Check your owners manual many Goldstars have a five year warranty on the sealed system. If so you need an LG dealer to exchange it for you. They will submit the work order and LG will issue a CO number for you and contact you.

I have a Goldstar dehumidifier, Model DH305Y6. I bought it about 5 years ago at a local Walmart. During the summer I run it in the basement, here in south-central Pa. When it was brand new it worked very well, for about 2 yrs. Then it began turning on & off very irregularly. At first I thought it was the sensor on the front of the coils. So I moved it to the lower left side of the coils, and had the same results. The other day the water heater in the basement developed a leak. About 300 gals. of water covered the floor. After sumping/wet-vac'ing down to a wet carpet, I pulled out the dehumidifier and plugged it in,(the filter was cleaned before put away last summer). It began its on/off cycling again. It runs for about 2-3 mins., then shuts off for about 5-10 mins. So, I took the On/Off switch apart and read the resistance. It read 48k, for the 50k switch. I turned the switch all the way left to all the way right and it went from 48k, down to about 8k. The two wires to the switch were attached to the #2 and #3 poles,(only 3 poles). I did some testing, then removed the wires and re-soldered them to the #1 and #3 poles. I put everything back together, and now it works. It runs constantly, but it works/runs just fine. I need to get the basement dry, so I will let it run until the job is done. In the Spring I will get a new 50k potentiometer,(on/off switch), and see if that works. I will post results if I remember to.

could be dirt coils or low freon either way needs to be checked

Take cover off. First check the fuse on the circuit board. If it's blown replace it. That should get the motor running, the motor might be or is going out. If the motor is bad you'll have to replace the motor. If the fuse is good and the motor is good, unhook the wires on circuit board that go to the humidity control switch. If the unit comes on with the humidity control switch unhooked, you'll have to replace the humidity control switch. Sears has them for about $11.50. Hope this helps.

sounds like the rheostat (aka rotary swithch) is opened (fried). can get new one on www.appliancefactoryparts.com for 8.19 + s/h. need to know how to solder though. otherwise you will be looking at having to buy new unit for $120+

You have to remove the entire wrapper to get to the control circuit board, make sure you unplug unit!! Locate the small white wires that plug into the board and go to the humidity switch.Unplug the connector at the board and plug the machine in and see if everything runs. ps make sure you reinstall the bucket or unit will not run. If machine runs replace that humidity control. The plug on the board is usually white. The other white wire is 4 the light. I hope this helps./

I just picked one up at a tag sale, seller said it worked sometimes. Seems to have the same problem as yours. I took the time to tweak all of the connections and then re-soldered the control board with no luck. I finally disconnected the humidity control and it worked fine. By disconnecting the humidity control the unit defaults to it's highest setting and you have to unplug the unit to turn it off. Conclusion so far is that the humidity control rheostat is bad.
Note: Now while running the fan runs continuously and the compressor cycles on and off every 10 to 15 minutes. This may to be normal since the unit appears to be doing its job and I'm not sure how it is supposed to run since a purchased it broken.