Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 19-10-2006, 14:08   #1
Registered User

Join Date: Nov 2005
Posts: 45
Need Manual Troubleshooting Norcold SCQT-6406 works AC volt not DC volts ?

Need Manual....Troubleshooting Norcold SCQT-6406 works AC volts not DC volts ? When hooked up to shore power my Norcold works fine However on the batteries which are topped off nothing............Any thoughts or suggestions?No manual on this unit ........where could I get one?
__________________

__________________
chuck711 is offline   Reply With Quote
Old 20-10-2006, 02:47   #2
Moderator Emeritus
 
GordMay's Avatar

Join Date: Mar 2003
Location: Thunder Bay, Ontario - 48-29N x 89-20W
Boat: (Cruiser Living On Dirt)
Posts: 31,579
Images: 240
Marine Refrigeration expert Richard Kollmann < http://kollmann-marine.com > gives specific answers to specific questions, on his Technical Forum: http://www.kollmann-marine.com/phpBB/

Norcold is a division of:
Dometic Environmental Corporation
P.O. Box 15299, Richmond, VA USA 23227
Phone: 804-746-1313
Fax: 804-746-7248
Web: http://dometicenviro.com/marinerefri...roductsmr.html
Refrigerators: http://dometicenviro.com/marinerefrigerator/frige.html
Freezers: http://dometicenviro.com/marinerefrigerator/freeze.html
__________________

__________________
Gord May
"If you didn't have the time or money to do it right in the first place, when will you get the time/$ to fix it?"



GordMay is offline   Reply With Quote
Old 20-10-2006, 04:14   #3
Registered User

Join Date: Nov 2005
Posts: 45
Thanks

Gord May
Thanks for the response. I'll get crackin and check out these places.
Thanks again
__________________
chuck711 is offline   Reply With Quote
Old 20-10-2006, 05:21   #4
Registered User
 
Sunspot Baby's Avatar

Join Date: May 2003
Location: New Bern, NC
Boat: Prout Manta 38' Catamaran - Sunspot Baby
Posts: 1,521
Images: 14
I had a similar problem on a different make of fridge. The compressor was actually a 12 or 24v unit with a converter to take 110 to 12. When I bypassed the converter and took 12v straight to the compressor it worked fine. The problem was in the converter, voltage was getting through but not enough amps to run the fridge. It was the 2nd converter or the unit because I had a similar problem with the first. The 2nd failed in Bahamas, so I now just run it as 12 volt and it works great. When on shore power, the battery charger keeps up fine.

FWIW I have a freezer with the same converter that has worked trouble free for 2 years.

Assuming yours is similar, try bypassing the voltage converter and see if it runs OK.

George
__________________
She took my address and my name
Put my credit to shame
Sunspot Baby, sure had a real good time
Bob Seger
Sunspot Baby is offline   Reply With Quote
Old 16-04-2007, 21:05   #5
Registered User

Join Date: Apr 2007
Location: on board currently Florida
Boat: Amel-Kirk, 11m/36feet
Posts: 12
Norcold

Quote:
Originally Posted by chuck711
Need Manual....Troubleshooting Norcold SCQT-6406 works AC volts not DC volts ? When hooked up to shore power my Norcold works fine However on the batteries which are topped off nothing............Any thoughts or suggestions?No manual on this unit ........where could I get one?
no manual but experiance, sorry, It works on AC because it is only transformed to about 40VAC to move the compresor pump,12vdc must be converted to 40VAC and it need complicated electronic circut where many elements can fail, sometime it is only corrosion easly seen on the circut board.
__________________
Dziadek Jacek is offline   Reply With Quote
Old 16-04-2007, 22:03   #6
Senior Cruiser
 
senormechanico's Avatar

Cruisers Forum Supporter

Join Date: Aug 2003
Boat: Dragonfly 1000 trimaran
Posts: 5,827
Recently,I got a 12 volt/120 volt fridge for free.
Same problem, the 12 volt didn't work. A couple of power transistors later, it worked fine. Did I mention, I fixed it myself with no soldering? They were mounted on a small circuit board with a couple of screws in each one.

Steve (retired electronics tech) B.
__________________
senormechanico is offline   Reply With Quote
Old 03-11-2013, 11:30   #7
Registered User
 
Don1500's Avatar

Join Date: Jul 2010
Location: On Board, just above the water
Boat: Marine Trader 47
Posts: 1,176
Re: Need Manual Troubleshooting Norcold SCQT-6406 works AC volt not DC volts ?

I know this is an old thread but I think this would be of help to others.

The manual for the Norcold SCQT-6406 can be obtained here:

http://bryantrv.com/docs2/docs/ncolddedc.pdf
__________________

__________________
The Nomad Blog Mother, mother ocean, I have heard you call
Everything I know about cruising I learned from Travis McGee - http://theroamingnomad.com
Don1500 is offline   Reply With Quote
Reply

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 23:57.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.