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Old 04-24-2021, 05:20 PM   #1
Junior Member
Brand: Thor Motor Coach
State: Nevada
Posts: 28
THOR #21307
Sound under dash

Hello all, Iíve got a 2021 24.1 axis that makes an intermittent electromechanical sound under the dash when parked and the engine is off. Any ideas as to what causes it, is it normal? Averages every 10 minutes or so but isnít consistent.

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Old 04-24-2021, 05:36 PM   #2
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16ACE27's Avatar
Brand: Thor Motor Coach
Model: ACE 27.1
State: Florida
Posts: 10,178
THOR #7035
Does it only do it when plugged into SP?

Sounds like your chassis charging circuit relay (BIRD/BIM)
Ted & Melinda
2016 ACE 27.1
2016 Chevy Sonic Toad
2020 Chevy Colorado Z71 Trail Runner Alternate Toad
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Old 05-07-2021, 06:17 PM   #3
Junior Member
Brand: Thor Motor Coach
State: Nevada
Posts: 28
THOR #21307
SP, boondocks game, driving, it seems to happen sporadically anytime I don’t have my head under the dash listening for it. :-) definitely some kind of relay, but the BIM is under the hood, further forward, and I don’t think would be audible from within the coach. At some point, I’ll start systematically pulling fuses to see if I can narrow it down.
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Old 05-07-2021, 07:25 PM   #4
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Brand: Still Looking
Model: Winnebago Travato 59G
State: Alabama
Posts: 4,576
THOR #6826
Canít really help you. But when I had my Freedom Elite there was a relay that would chatter every now and again with no discernible pattern. It never lasted long enough for me to track it down and I never did figure out what it was. But nothing ever failed to work properly so it remained a mystery until the day I traded it.
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