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Old 10-02-2020, 05:32 PM   #1
Junior Member
Brand: Thor Motor Coach
State: North Carolina
Posts: 3
THOR #19864
Switching noise in engine compartment

Any ideas what might be causing this noise? Happens when the engine is turned off, running, plugged into shore power, running on the generator, and running on batteries.

The rig is a 2020 Thor Quantum GR22 on a Chevy platform. I do live in it full time, not sure if that makes a difference.

Posted video clip on YouTube.

Thanks in advance for any help,


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Old 10-02-2020, 07:07 PM   #2
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16ACE27's Avatar
Brand: Thor Motor Coach
Model: ACE 27.1
State: Florida
Posts: 14,295
THOR #7035
Sounds like a large solenoid but if you aren't plugged into SP, generator is not running and engine is not running then nothing should be trying to activate. Do you have an Emergency Start switch? does it make the same noise when you press that switch?

I'd be on the phone to Thor customer service this afternoon if that was my RV.
Ted & Melinda
2016 ACE 27.1
2016 Chevy Sonic Toad - Selling
2020 Chevy Colorado Z71 Trail Runner Toad
2024 Chevrolet Trax 2RS - Soon 2B TOAD
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