ApplianceJunk.com

Forum Index => Dryer Repair => Topic started by: albrt-lg on February 04, 2022, 03:23:00 PM

Title: LG combo FH4U2TDH leaves clothes wet
Post by: albrt-lg on February 04, 2022, 03:23:00 PM
Hi everyone,
all of a sudden I can't get dry clothes; I tried to spin @1400rpm before starting dry cycle and clothes were damp; after dry cycle they even got wet though hot. No errors posted.
I opened the fan housing and there was no clogging; measured heater (43 ohm) thermostat (0.3 ohm) and fuse (?) (0.3 ohm). Fan seems to be running. I also measured inlet valves, all 5 around 4.6kohm.
Any clue, suggestion or idea? Thanks in advance. I hope my English is understandable.

Alberto
Title: Re: LG combo FH4U2TDH leaves clothes wet
Post by: manden on February 05, 2022, 05:32:24 AM
Tried two parts sites and nothing comes up for your model.
Is this a North American unit if not getting any info on it will be difficult as this is an American site.

Never worked on a combo unit but often wet clothes after drying is due to a problem with the venting.
Try running a load with the vent disconnected if this is an electric unit.
Title: Re: LG combo FH4U2TDH leaves clothes wet
Post by: albrt-lg on February 05, 2022, 10:34:12 AM
Tried two parts sites and nothing comes up for your model.
Is this a North American unit if not getting any info on it will be difficult as this is an American site.

Never worked on a combo unit but often wet clothes after drying is due to a problem with the venting.
Try running a load with the vent disconnected if this is an electric unit.
Hi manden, thank you for the answer; actually, it's not a NA unit, it's an EU (Italian). When talking about venting, do you mean I should look for an "exhaust" where hot air is meant to exit?

Alberto
Title: Re: LG combo FH4U2TDH leaves clothes wet
Post by: manden on February 05, 2022, 02:26:28 PM
Yes but be warned that I am flying blind here.

I am not even sure if this unit attaches to a vent system.
Title: Re: LG combo FH4U2TDH leaves clothes wet
Post by: manden on February 05, 2022, 02:44:04 PM
Was able to find some info on it using Google.
Looks like they do not hook up to a vent system so I mhave no idea how they dry the close.

I am sorry I could not be helpful to you.
Title: Re: LG combo FH4U2TDH leaves clothes wet
Post by: albrt-lg on February 05, 2022, 03:32:11 PM
Thank you for the effort, manden  :)

Alberto
Title: Re: LG combo FH4U2TDH leaves clothes wet
Post by: Pnwdad1981 on February 09, 2022, 11:10:30 PM
Those all in ones are ventless condensing units that uses the same drain pump for washer cycles to pump out collected moisture unless you got a funky mini one you manually have to empty tray but I assume itís full size. Several things Iíve seen on those is burnt wires on the manifold, manifold itself that threw all screws and left huge gaps, bad manifold fan not starting which would be a major issue. You really need to find a tech sheet so you can get into diagnostics and test each component for ops.
Title: Re: LG combo FH4U2TDH leaves clothes wet
Post by: Pnwdad1981 on February 09, 2022, 11:19:43 PM
Try that test itís not for your specific model but a lot of LGĎs will use the same test for different models of the same kind of type of machine.
Title: Re: LG combo FH4U2TDH leaves clothes wet
Post by: albrt-lg on February 12, 2022, 12:27:48 PM
Hi Chris, thank for your reply.
The unit is full size, at least here in EU :) I found the right combination of keys and I ran those tests; #11 fired up the resistor and fan so everything should be fine. I disassembled the fan housing and noticed thee was some build up on the blades and under the nozzle from which -I believe- water is sprayed to condense humidity from the clothes; I cleaned. I noticed the fan turns but stops immediately, while other types of fans spin for a few seconds. Is it ok?

Alberto
Title: Re: LG combo FH4U2TDH leaves clothes wet
Post by: Pnwdad1981 on February 13, 2022, 10:21:35 PM
If itís the manifold fan it should be constant or heated air would never cycle. This unit does spray water periodically but itís to cool the unit down cause a lot is plastic. How many fans are there? Usually they have the heater fan and newer ones have the stay fresh one in front.
Title: Re: LG combo FH4U2TDH leaves clothes wet
Post by: albrt-lg on February 14, 2022, 02:42:50 AM
Sorry Chris, I wrote nonsense: I should have written:  "I noticed the fan turns by hand but stops immediately, while other types of fans spin for a few seconds. Is it ok? "
It's the manifold fan and it's the only one, as far as I can see.
I'd like to know how this thing is supposed to work: does it blow hot air in the drum then, reversing the fan, sucks the hot air/steam up to the condensing chamber where it's cooled by the spray from the nozzles?

Alberto
Title: Re: LG combo FH4U2TDH leaves clothes wet
Post by: Pnwdad1981 on February 14, 2022, 06:31:29 PM
If the heater is on that fan should always be running. spray nozzels is for cool down only doesnt have anything to do with condensing atleast npt that I would think. There's usally an external condensing chamber, odd blow molded plastic in the rear of the unit then the moisture travels back into the drum and pumped out via drain pump. those will get plugged with lint and restrict airflow too. Thats the downfall of all those units. they have yet to perfect the art of lint not getting to that point. I cant find your model view but the model number is known so I couldnt tell you im just guessing from what ive seen in the field. But yeah that fan should be on when heaters on and its one way fan ops that blow only.