How to repair a Rubydry dehumidifier
lemel_man
first two weeks, collecting about 4-5 ltrs/day.
Then one morning I found it had stopped with the warning light on and
the Mid light flashing. Since the on/off button was inoperative I pulled
the mains plug. After re-inserting it I pressed the on/off button and it
started running properly again, only to fail a couple of nights later
with the same fault.
I followed the same procedure and got it working again, but when it
happened again the following day, the error was hard. This time I
couldn't get it running so I called a company called Dry-it-Out who
suggested checking for a blown fuse or that the drum was still rotating.
Both were OK so I switched it off until I got some more information.
Several days later I demonstrated the error to a friend but, much to my
surprise, it started running properly when I connected the mains lead.
Its now been running properly for 48 hours, collecting about 4 ltrs/day
on the Mid setting.
Can anybody shed any light on this intermittent problem?
--
Regards, Gary Wooding
(To reply by email, change gug to goog in my address)
Harry Bloomfield
> Several days later I demonstrated the error to a friend but, much to my
> surprise, it started running properly when I connected the mains lead. Its
> now been running properly for 48 hours, collecting about 4 ltrs/day on the
> Mid setting.
> Can anybody shed any light on this intermittent problem?
Might it have simply shut itself down because it had been especially
cold over night?
--
Regards,
Harry (M1BYT) (L)
http://www.ukradioamateur.co.uk
js.b1
Look at the bottom rear of the unit, you may find a telephone number,
if not search online.
They have a full exploded parts-diagram with every part listed, and I
believe service facilities.
As you know they do not use a compressor, they use a dessicant disc.
Thus should be particularly reliable in that there is very little to
go wrong and also very repairable (no compressor). Low temperature is
not a problem, they maintain their efficiency unlike many (they kick
out about 350-570W heat remember). Only the Mitsubishi unit is more
reliable, but frankly at £330+ too expensive.
NT
Desiccant wheels use around twice as much energy as compressors
though. If you dont need low ambient temp operation you might be
better off with a compressor machine.
NT
Mike Lane
> On Feb 19, 5:52ï¿œpm, "js.b1" <js...@ntlworld.com> wrote:
>> I believe they are made/imported by EHS in Manchester.
>> Look at the bottom rear of the unit, you may find a telephone number,
>> if not search online.
>>
>> They have a full exploded parts-diagram with every part listed, and I
>> believe service facilities.
>>
>> As you know they do not use a compressor, they use a dessicant disc.
>> Thus should be particularly reliable in that there is very little to
>> go wrong and also very repairable (no compressor). Low temperature is
>> not a problem, they maintain their efficiency unlike many (they kick
>> out about 350-570W heat remember). Only the Mitsubishi unit is more
>> reliable, but frankly at ￜ330+ too expensive.
>
>
> Desiccant wheels use around twice as much energy as compressors
> though. If you dont need low ambient temp operation you might be
> better off with a compressor machine.
Yes that's what I've always thought, but I'd like to see a proper comparison
of the extraction rate/kW of energy under identical conditions.
A typical desiccant dehumidifier is quoted as consuming 620W and giving an
extraction rate of around 8 litres/day. My compressor unit uses 250W and is
quoted as extracting 10 litres/day *but* that is at 32ï¿œC and 80% rh - i.e.
unusually high temperature and humidity. Under more normal conditions the
extraction rate that I get is far less than 10 litres/day - I would guess
around a third or quarter of that0
--
Mike Lane
UK North Yorkshire
email: mike_lane at mac dot com