Question about Goldstar DH304 Dehumidifier
MY GOLDSTAR DEHUMIDIFIER IS ABOUT 3 YEARS OLD AND IT JUST QUIT WORKING ONE DAY. DOESN'T APPEAR TO BE GETTING POWER TO IT. I CAN'T FIND MY OWNER'S MANUAL SO I AM HAVING TROUBLE TRYING TO SEE WHAT THE PROBLEM IS. IS THERE A RESET SWITCH OR SOMETHING TO TRY AND GET IT GOING AGAIN? CAN THIS PROBLEM BE FIXED WITHOUT BUYING A NEW DEHUMIDIFIER?
I took my dehumidifier apart and I found why the unit no longer would start.
First, there is a fuse inside the metal compartment that houses the control circuit board.
However, the fuse was not blown. Instead I found the relay that controls the compressor,
(circuit diagram calls it RY-COMP) was not functioning and was left in the open position.
The relay must switch the compressor on/off based on humidity, full water hopper, and
maybe other factors like temperature.
The RY-COMP is a large black plastic component on the circuit board with two
wires (blue and black) connected at the top. I tested the contacts and they remained
open when starting up the dehumidifier. Doing a small bit of rewiring so that the blue and black wire
were connected and also wired to RY-COMP terminal 3, the dehumidifier came back to life.
However, this is good for proving what broke but without an electronic control to cycle the
unit on and off and to halt when the water hopper is full it's not a valuable alternative and
it risks a burnout of the compressor from constant use.
I think the RY-COMP relay is a solid state relay which could have gone bad from a spike
in voltage when plugging the unit in or cycling on/off.
I certainly don't want to buy another unit where the circuitry is not robust enough to survive
plugging in every couple weeks. I was thinking I could try replacing the relay with a magnet relay which would probably survive spikes much better.
Posted on Sep 13, 2008
I don't think there is any kind of a reset switch in these small units. The problem could be a broken wire or burnt off connector, bad power cord, or a bad switch. This type of problem must be traced out by someone who can use a power meter or Ohm meter.
Posted on Jun 18, 2008
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