Cruisers Forum

Join CruisersForum Today

Thread Tools Rate Thread Display Modes
Old 09-12-2015, 08:15   #1
Registered User

Join Date: Aug 2011
Location: Tampa,Fl
Boat: 44 CSY wo
Posts: 26
cold machine wont restart

I would like to know how to find out if it is the compressor or the control module?
I can get it to start by pulsing the DC current (wire off an on) gets nice and cold then wont start again next cycle?
Thanks for any help anyone can give as I am trying to help a friend with this.
carambo46 is offline   Reply With Quote
Old 09-12-2015, 13:38   #2
Marine Service Provider

Join Date: Aug 2004
Location: Ft. Lauderdale
Posts: 702
Re: cold machine wont restart

Three and Four pin Danfoss BD troubleshooting

If your refrigeration unit is over 10 years old and has a Danfoss BD 2 or BD2.5 or BD3 compressor then it has the older discontinued electronic 4 pin module.
Troubleshooting Danfoss compressors with 4 pin modules will consists of the following steps:

1. All of these compressors have a 4 pin module connector and their modules contain an external fuse. If this fuse is blown there are two reasons why either power wires to module are reversed or module has an internal failure.

2. Check to see that there is actually power at the refrigerator control module.

3. Place jumper wire across thermostat terminals on electronic module, Compressor still does not run go next step.

4. Disconnect black fan wire from electronic module, Compressor runs, replace fan. Compressor still does not run after fan ground wire is disconnected, go to next step.

5. Run correct size and correct polarity jumper wires direct from a fully charged battery in order to bypass all boat’s wiring. Volt meter readings are of no value when looking for voltage spikes. Compressor still does not run electronic module needs to be removed and tested on another unit. If there are no other units available to test your module on I will test all 12 volt Danfoss control modules free except for BD80 compressor modules. Small 12/24 volt boat refrigeration using Danfoss compressors manufactured after 1996 will have a BD 35 or BD 50 variable speed compressor with a troubleshooting computer chip built into their control module. This circuit makes them easier to find troubled area if compressor fails to run. If your unit does not have this $2 LED install one, as it could save you a lot of money later. Without the LED on these new units troubleshooting will be the same as earlier 4 pin Danfoss BD compressors.

If your shipping address is in the US, I will test your module on my Danfoss compressor refrigeration test stand. This test stand will run at max compressor load for a one hour. I will then return your module to you for a shipping and handling charge of $20.

All of these systems using So called Danfoss or equivalent compressors require different troubleshooting methods so always report manufacturer of system and compressor model
Richard Kollmann is offline   Reply With Quote
Old 09-12-2015, 16:43   #3
Registered User

Join Date: Aug 2011
Location: Tampa,Fl
Boat: 44 CSY wo
Posts: 26
Re: cold machine wont restart

thank you where do we send the module?
carambo46 is offline   Reply With Quote

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

Similar Threads
Thread Thread Starter Forum Replies Last Post
440: Well insulated? Might live abord in cold (really cold) climate... MakeItHappen Lagoon Catamarans 9 28-12-2014 03:19
For Sale: Cold Machine Compresser & Cold Boxes DCGSAILING Classifieds Archive 4 16-12-2011 04:43
For Sale: NOS Adler-Barbour Super Cold Machine Fridge with Cold Plate ! Christian Van H Classifieds Archive 6 22-08-2011 20:20
Adler Barbour Super Cold Machine - Too Cold ! svfinnishline Plumbing Systems and Fixtures 7 04-02-2011 10:44

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 07:28.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.