Should Trailer Brakes Hum While the Breakaway Pin Is Pulled
Published 05/16/2019
Question:
When the brake away switch is pulled for testing should you hear a click or a humming noise coming from the brakes.
asked by: Dale
0
Expert Reply:
Yes, when the pin on a breakaway system like the Hopkins Engager Push-To-Test Trailer Breakaway Kit part # 20099 is pulled that then sends full 12 volt power to the trailer brakes. When power is sent to an electric braking assembly you may very well hear sort of a humming noise and this is not uncommon at all nor it is an indication that a problem is present.
expert reply by:
Conner L
0
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