Class system (oh boy)

[edtheguy]

Had an E4 error . Bought used compressor assembly , replaced still getting an E4. Unplugged everything, still get ting an E4. What gives ? Does anybody have a layman's procedure of troubleshooting this system ?

[Condor]

Had an E4 error . Bought used compressor assembly , replaced still getting an E4. Unplugged everything, still get ting an E4. What gives ? Does anybody have a layman's procedure of troubleshooting this system ?

 

The E4 generally means you have a few cold solder joints on the PC board. It's electrical not mechanical. It's an easy fix by re-soldering the joints. There should be a bunch of info on how it's done in the tech section. Also in the first gen service manual you'll find all the E code listing for the CLASS.

[Flyinfool]

E4 is almost always a bad solder joint on the CLASS board, usually at the connector pins. Easy fix if you know which end of the soldering iron to hold.

[Grez007]

This is from the 1st gen tech library

http://www.venturerider.org/forum/showthread.php?493-CLASS-E4-Error-Repaired

 

not too difficult if you're not shy with a soldering iron. If you think it beyond your capabilities then just take it out

and take it to an electronic repair person and they should handle it for not too many dollars

[saddlebum]

The E4 generally means you have a few cold solder joints on the PC board. It's electrical not mechanical. It's an easy fix by re-soldering the joints. There should be a bunch of info on how it's done in the tech section. Also in the first gen service manual you'll find all the E code listing for the CLASS.

For the most part this is true but don't overlook the terminals in the connector plug. If the the terminals are corroded or loose fitting it will give the same symptoms as cold or cracked solder joints. Try tipping up the panel and wiggling and/or pressing the connector and see if the E4 code goes away. If it does you have more or less localized your problem. Re solder the solder joints, if possible remove the old solder first. I have used both the solder suction toll and the copper braid to do this and both work well. Then re solder. Also pull the the terminals out of the plug one at a time inspect, clean and re tension with a small pick before reconnecting it to the class computer.

[edtheguy]

Ok guys. You know your stuff. Re soldered all nine pins coming off plug and unbelievably the system is now working. Thanks so much for all your input. Great bunch in this cub.

[edtheguy]

Great bunch in the club .