Magnetek 6620 Power Converter in a Coleman --Help!
Jay Brummett
power converter. My unit is the original that came new
with the trailer. As of a few weeks ago, the unit has
malfuntioned and I am seeking anyone with expereince with
this type of unit.
My failure is as follows: When connected to 120VAC the unit
provides correct AC output and provides DC output to the
trailer.
In short, the unit works fine on 120VAC. However, when AC
is
removed the unit fails to pass the battery 12VDC through to
the
trailer circuits. I have bypassed the inverter and applied
power
to the trailer's DC circuits and all functions normally.
Since
this unit auto switches between Converter and "battery"
mode, I
assume the problem is the cut-over circuit. I have yet to
remove
the unit and open the beast up -- tomorrow night's project
:(
Does anyone have any info on these beasts (maybe even a
schematic).
Is it worth the effort to try and repair this unit; for
example,
is the cut-over just a simple relay? Any help, advice,
pointers,
shared misery, etc ... would be welcomed. My wife and I are
hosting
a large family re-union of her family and I need to get my
trailer's
electrical working ASAP.
Thanks in advance for any replies.
Best Regards,
Jay Brummett
Salt Lake
Marc
converter. Also make sure the battery is charged ( and also properly hooked up
polatity-wise). Doesnt hurt to check the roof up/down safety switch as that
will cause a no 12v from the battery. Also make sure you dont have a poped
12v circut breaker that feeds from the battery to the inverter somewhere -
those suckers can be hidden - I have a 88 coleman plantation & mine 12v dc
breaker is under the shower in a cabnet. I doubt it's the switch on the
inverter.
Jay Brummett
> Check the battery 1st & it's wires & the wires from the battery going to the
> converter. Also make sure the battery is charged ( and also properly hooked up
> polatity-wise).
where to look for these
kinds of problems. Have 12VDC from the battery at the
converter, just no joy
on the downline side of the converter.
> Doesnt hurt to check the roof up/down safety switch as that
> will cause a no 12v from the battery. Also make sure you dont have a poped
> 12v circut breaker that feeds from the battery to the inverter somewhere -
> those suckers can be hidden - I have a 88 coleman plantation & mine 12v dc
> breaker is under the shower in a cabnet.
Checked these also, they're good.
> I doubt it's the switch on the inverter.
Just don't know where else to look, It is either a bad
circuit in the converter
or the relay which aut switches between shore power /
battery power is bad.
Thanks again for your input.
Best Regards,
Jay Brummett
Salt Lake City, Utah
Al Lander
Centurion converter in my 2000 Coleman Utah. The problem was in the 20 amp
fuse protecting the battery. The female end of the fuse connector was just
open enough that vibration from travel would sometimes cause the fuse to not
make contact even though it looked and felt firmly seated. It stopped all
12 volt service to the other three 15 Amp fuses. If the Magnetek has the
same setup you may want to check it by wiggling it side to side or slightly
bending the tabs on the fuse in opposite directions. I ended up giving the
female connector a gentle squeeze with a pair of needle nose pliers and its
worked fine since.
Good Luck
Al
"Jay Brummett" <brum...@xmission.com> wrote in message
news:3D1673A3...@xmission.com...
Jay Brummett
Al Lander wrote:
>
> I'm not familiar with the Magnetek however I've had an issue with a
> Centurion converter in my 2000 Coleman Utah. The problem was in the 20 amp
> fuse protecting the battery. The female end of the fuse connector was just
> open enough that vibration from travel would sometimes cause the fuse to not
> make contact even though it looked and felt firmly seated. It stopped all
> 12 volt service to the other three 15 Amp fuses. If the Magnetek has the
> same setup you may want to check it by wiggling it side to side or slightly
> bending the tabs on the fuse in opposite directions. I ended up giving the
> female connector a gentle squeeze with a pair of needle nose pliers and its
> worked fine since.
>
> Good Luck
> Al
Al,
Thanks for the tip, I will look at that. Centurion
replaced Magnetek
in the Coleman line a few years ago. I would not be
surprised to find that
the design and thus the loose fuse issue would be the same
in both units.
Thanks for the reply.
Best Regards,
Jay Brummett
Salt Lake City
Steve Bryan
Components (http://www.parallaxpower.com/Converters/converters.html).
They don't have much on their web site, but there are a couple of phone
numbers for technical support.
Steve
"Jay Brummett" <brum...@xmission.com> wrote in message
news:3D1673A3...@xmission.com...
Jay Brummett
>
> Magnetek recently sold its RV power converter division to Parallax Power
> Components (http://www.parallaxpower.com/Converters/converters.html).
>
> They don't have much on their web site, but there are a couple of phone
> numbers for technical support.
>
> Steve
Steve,
Thanks for the tip. I have dug into the converter and have
r-engineered the design. Gosh these things are expensive
given what
is in side. I think I have my problem licked with the
replacement of
an internal 5 amp fuse and the converter to battery relay.
Best Regards,
Jay Brummett
Salt Lake City, Utah
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