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Old 10-26-2018, 09:26 PM   #1
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Brand: Thor Motor Coach
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THOR #13536
Fault code 45 onan generator

Has anybody had this issue before? It was running totally fine then It shut down and wonít come back on other in the service mode?
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Old 10-27-2018, 12:51 PM   #2
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Model: 2016 Axis 25.2
State: Florida
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THOR #12340
Sorry but I don't know how to fix the problem, but this manual may help. It contains the fault codes. Page 56 for code 45 says it is a speed sensor?

https://www.granddesignrv.com/sites/...r%20Manual.pdf
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Old 10-27-2018, 01:41 PM   #3
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THOR #7035
Did you fix your battery problem?
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Old 10-27-2018, 02:48 PM   #4
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Brand: Thor Motor Coach
Model: Miramar 34.4
State: Iowa
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THOR #4488
Quote:
Originally Posted by AP8181 View Post
Has anybody had this issue before? It was running totally fine then It shut down and wonít come back on other in the service mode?
I'm not familiar with "service mode", but the fast idle code is displayed due to the generator not properly idling down. It shuts down to protect itself if it doesn't idle down quickly enough after removing a load. Honestly the generator likes to run with a load on it. I have had mine shut down by itself when turning off the AC unit and then flash the fault code. However, I've never had a problem with it restarting.
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Old 10-28-2018, 06:25 PM   #5
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Brand: Thor Motor Coach
Model: 2013 ACE 30.1
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THOR #2631
Hi, this may not apply to your Onan code 45 specifically, but if you scan down the attached hyperlink there is an entry that describes three typical issues that may cause the code 45......of course the described checks/fixes may not apply unless you have the same generator described. Its a start though (no pun intended).



2003 5.5K Onan Generator Code 45 - iRV2 Forums
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