Official Luthiers Forum!

when i bought my dehumidifier it was colder months temp around 7-15 degrees Celsius in the shop unheated and 65-70% RH....the dehumidifier took moisture out of the environment and brought the room down to 50%RH .which i was happy with...

But now in summer shop temp is around 24-27 degrees Celsius & 60%RH....
Question is - even with the dehumidifier (delonghi DD95) running contiuous in my shop (6m x 4m x 3.6m)it doesn't take 1 drop of moisture out of the atmosphere.the room still hovers around 60%RH.. does this sound right or does it sound like its not working properly?
I have emailed Delonghi about it and so far after a week had no reply about what may be going on...

thanks for any ideas you may have,
Grant

It sounds like it is NOT working!!!!

_________________
Andy Z.
http://www.lazydogguitars.com

If the room temperature is higher and the starting humidity is the same,
theoretically your dehumidifier should be pulling more pints/day out of the
air than in cooler weather.

Pull off the filter and feel to see if the condensation fins/coils are getting
cold. It sounds like your dehumidifier is not working and may need to have
the refrigerant recharged and checked for leaks.

_________________
Eschew obfuscation, espouse elucidation.

Grant-
If the tank isn't getting filled with water, and the compressor and fan are both running,it isn't working.
Are the condenser coils cold?
Is the compressor running, or just the fan?
If it is under warranty (12 months?), I'd return it pronto.
John

well i just took the back off it and ran it for 15 mins and the fins arn't getting cold at all....
I don't know how to check if the compressor is running or not ....but either way looks like a trip to the service repair guy...
thanks for the help...

If it shakes and jiggles when it's starting up the compressor's running. If the
compressor was out you would only hear the fan running which would be
relatively quiet.

For some reason, dehumidifiers seem to be so prone to developing leaks
and loosing their refrigerant. I have four of them and have had to have two
of them serviced and recharged. Of course it's my twenty and thirty-
something year old ones that are still running on thier original charge, and
the newer ones that have quickly developed leaks.David Collins39091.0891319444

_________________
Eschew obfuscation, espouse elucidation.

It's called Planned obsolescence, these days this kinda stuff is supposed to die the day after the warranty runs out. It's considered to be good engineering and it's loved by the marketing and sales departments.

Now watch as Brock does a dance on my head

Probably a stupid question but how are you measuring the humidity in your shop? Are you relying on a humidity meter built into the dehumidifier or are you using a stand alone humidity meter? If the latter is the case then check the meter is reading correctly before you go dicking with the dehumidifier.

[QUOTE=PaulB] It's called Planned_obsolescence">Planned obsolescence, these days this kinda
stuff is supposed to die the day after the warranty runs out. It's
considered to be good engineering and it's loved by the marketing
and sales departments.

Now watch as Brock does a dance on my head [/QUOTE]

Not long ago I would have said that was a bunch of conspiracy theory
mumbo jumbo - but then I bought a Volkswagen and now I'm not so
sure...

Seriously though, in this case they're just cranking out appliances for as
cheap as they can without any motivation to design thier products to fail.
It's just quick, cheap and not so precise modern manufacturing. Both of
the dehumidifiers that I had repaired have run fine since they were
serviced 5 and 7 years ago. Still, if it's less than a year old I would
certainly pursue warranty coverage.

But really, does anyone else here drive a recent Volkswagen? I may say it
a little tongue in cheek, but when my car has spent as much time at the
dealer as it has on the road and I've spent more on thier proprietary
computer diagnostics than on gas, I really have to wonder... David Collins39091.1550462963

_________________
Eschew obfuscation, espouse elucidation.

I thought it was conspiracy theory mumbo jumbo too, until my TV died THREE DAYS after the standard warranty ran out. Glad I let my wife talk me into buying the extended warranty . She's been in marketing for many years, so I figured she'd know.

I spoke to an engineer (actually VP of Engineering) that I was working with at the time, and he said "Well, it was engineered perfectly then"

[QUOTE=kiwigeo] Probably a stupid question but how are you measuring the humidity in your shop? Are you relying on a humidity meter built into the dehumidifier or are you using a stand alone humidity meter? If the latter is the case then check the meter is reading correctly before you go dicking with the dehumidifier.

[/QUOTE]
I'm using a reasonable quality digital temperature/hygrometer which seems to be fairly accurate.....i had 2 hygrometers of different brands and they both read similar so i assume its accurate.
My machine doesn't have a humidity meter ...just a humidistat so i need a separate meter to work out where to adjust the humidistat on the machine to toggle on and off.
I won't be fooling with the dehumidifier myself....I'll leave that to the repair guy ...i just wanted to have some idea of the possible problems...   gratay39091.1939236111