I recently purchased a 2nd hand dehumidifier from eBay to help keep the
workshop dry. It worked well for a couple of weeks, extracting about
5ltrs/day. But then it stopped with a warning light on. The manual says
to contact my supplier. Its a Rubydry DH600 and I can't find any place
that repairs them. Can anybody help please? I'm near Coventry.
--
Regards, Gary Wooding
(To reply by email, change gug to goog in my address)
Cheap dehumidifiers do not have a hot gas defrost system, instead they rely
on ambient warmth to melt the ice from the heat exchanger, which effectively
means that below about 5 degrees they will not defrost. It is possible that
your machine has simply locked out because of a block of ice on the HE and
simply needs to be thawed out for a few days with the power turned off. I
turn mine off during very cold conditions for precisely this reason.
Cliff Coggin.
Did you manage to sort it out? I'm thinking of getting a dehumidifier
for my workshop so I'm interested in your progress. They cannot be that
complicated surely, a fan to draw the air in, a motor attached to a
rotating disc with the dessicant in it, and a heater to dry out the
desiccant. If you cannot get it repaired maybe you can investigate it's
innards, someone on this NG must know how they work and what bit is most
likely to fail. I've taken the liberty of adding "Dehumidifier" to your
subject line in the hope that it may attract some interest, hope you
don't mind
Cheers
Don
I don't mind at all; in fact its a good idea, thank you.
I contacted "Dry-it-Out" and spoke to a very helpful guy. He suggested
checking a fuse, and checking that the belt motor was still working.
Both were OK. He then suggested that a sensor had failed, but was unable
to identify which one because of various design changes introduced by
the maker.
He said he could give it a thorough service, replacing any parts
required, and send it back to me with a 12 month warranty for £59
inclusive, which doesn't sound too bad.
I showed it to a friend a couple of days ago, switched it on to
demonstrate the warning light, but it started running properly. I left
it on and its extracted about 8 ltrs so far, and is still running fine.
Don't you just love intermittent faults!
In case somebody knows this DH600 unit intimately, when it goes wrong
the warning light is on, the Mid light flashes, and the on/off button is
inoperative. The only way to switch it off is by pulling the mains plug.
After reconnecting, the on/off button switches the unit on again and it
either beeps and shows the warning light again, or it starts properly.
As I said, its been running properly for 48 hours now.
After I got it, it ran for two weeks before the error occurred. After
pulling the mains plug it ran properly for a day or so before the error
reappeared, but after doing that a couple of times the error became
hard. That's when I left it switched off and posted here. Then my friend
came round and its currently running again.
--
Regards, Gary Wooding
(To reply by email, change gug to goog in my address)
Another thing you could do is to ask the same question complete with the
latest info, in the "uk.d-i-y" news group, they seem to have quite a
knowledgeable group of engineers who contribute regularly. I would
include "Dehumidifier" and "Repair" or similar words in the subject line.
Good Luck
Don
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