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Old 06-27-2021, 12:03 AM   #1
z28
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Brand: Thor Motor Coach
Model: ACE 30.3
State: Florida
Posts: 63
THOR #9536
No radio display

Just replaced the main battery used to start the engine in my 2018 THIR ACE and now the radio in the dash is inop, no display or sounds. Looking for suggestions on where to begin. performing a diagnosis
Thanks
Mark

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Old 06-27-2021, 12:10 AM   #2
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Model: Thor Ace 33.1
State: Illinois
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THOR #20274
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Originally Posted by z28 View Post
Just replaced the main battery used to start the engine in my 2018 THIR ACE and now the radio in the dash is inop, no display or sounds. Looking for suggestions on where to begin. performing a diagnosis
Thanks
Mark
Just a guess remove the battery cable and reconnect after a minute but first check all your fuses
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Old 06-29-2021, 10:03 PM   #3
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Model: 29h outlaw
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Get a paper clip and find the reset hole, providing you have power to both leads behind unit.

Ps, make sure the use,store is on.
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Old 06-29-2021, 11:13 PM   #4
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Brand: Thor Motor Coach
Model: 2013 ACE 30.1
State: Alberta
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Originally Posted by z28 View Post
Just replaced the main battery used to start the engine in my 2018 THIR ACE and now the radio in the dash is inop, no display or sounds. Looking for suggestions on where to begin. performing a diagnosis
Thanks
Mark

Well is your use/store switch on......maybe something changed with newer coaches, but usually dash radios are powered from House batteries not Coach battery. If there is power to the radio then try some of the other common reset techniques.
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Old 06-30-2021, 12:51 AM   #5
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Check your 50 and 100 amp breakers. One under hood near battery is probably the culprit.
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Old 06-30-2021, 11:21 PM   #6
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Originally Posted by Trkyte@msn.com View Post
Get a paper clip and find the reset hole, providing you have power to both leads behind unit.

Ps, make sure the use,store is on.
Can you explain more on the reset hole please? is it on the radio or some where else? Thank you.
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