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Old 11-23-2009, 09:09 PM   #1
1 Rivet Member
2007 20' Safari
Dayton , Ohio
Join Date: May 2008
Posts: 16
Reese brakeman "4a" on box ???

I have 20' 2005 AS trailer.

Use 5 year old Reese Brakeman controller. Never had a problem.

Cleaned 7 way plug connectors with electrical spray cleaner.

When apply brakes, while trying to see controller number to 2.5, I get a "4a" message on the controller box.

What does the "4a" mean? Sorry dont have manual anymore.

Could this be caused by me cleaning, spraying, the 7 wire connector?

Anyone had this "4a" before?

Thanks in advance for replies.

e mail me at

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