Sunday, February 13, 2022

12 Feb 22 - Camper Automatic Transfer Switch Replacement

When we moved the camper a couple of weeks ago to have the trees trimmed in the back yard the Automatic Transfer Switch started buzzing when we plugged it back into the house on the east side.  After doing some research and asking some questions and watching some YouTube videos I determined the switch was bad and I could replace it.  So I ordered the parts from Amazon and waited for their delivery.  Here is the inside of the switch.  What it does is lets power into the camper based on either Shore power or the generator providing power.  So there are 2 sets of wires coming into the right side of the switch (red, white, & black), one coming from the generator and the other from shore power plug.  One set of wires on the left side going to the circuit breaker panel.
Here is what I found when I took the cover off the switch.  Between the white and black wire terminals there were a glob of dead ants.  I don't know if that is what fried the switch or not.  But they were electrocuted!
Documenting wire removal so I know where they go back to!
Once I replaced the switch I replaced the converter which takes 120 volt power and converts it to 12 volts and charges the battery that runs the 12 volt accessories and the lights and starts the generator.  Once I got it all back together it was a success.  We have power in the camper both 120 volt and 12 volt.  Was a couple of hours well spent in the camper basement. 
 

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