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04-13-2019, 11:46 PM
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#1
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Member
Join Date: Nov 2016
Posts: 49
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Generator Problem
I have a 1995 Rexhall Aerbus 31ft. It has the NP52 Generac generator. I regularly perform all maintenance as required and follow the manual on exercising the generator when it is parked for periods. A couple days ago i was running the generator with a heavy load. It was running great when all of a sudden it just shut down. No warning, sputtering or anything. After allowing it to cool i checked the oil level and the fuel level of the motorhome. All were good. I then attempted to restart the generator and it wont even turn over. When i press wither the start button on the generator or inside the MH there is nothing. I checked the fuse on the front panel of the generator and it was fine. I have no idea how this is wired into the MH but know it wasnt altered from the original installation. SO, anyone else ever have a similar issue or other thoughts? Are there other relays or fuses that may be in the system? I only know of the one on the front panel of the generator. I have checked the breakers on the front panel of the generator and the breakers on the power supply inside the motorhome. Other than that I have no idea where there may be other breakers or fuses that would cause this to happen.
I appreciate any help that you could offer!
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04-14-2019, 06:36 AM
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#2
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Senior Member
Join Date: Aug 2017
Posts: 2,104
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Check for 12 volts on the cable from the batteries to the generator , or for 12v on the fuse. Most generators require 12v to start and keep running.
__________________
1993 Tiffin Allegro Bay 32'
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04-15-2019, 03:59 AM
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#3
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Member
Ford Super Duty Owner Rexhall Owners Group
Join Date: Oct 2013
Location: Tucson, AZ
Posts: 89
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Quote:
Originally Posted by Soppy
Check for 12 volts on the cable from the batteries to the generator , or for 12v on the fuse. Most generators require 12v to start and keep running.
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I had a similar problem 2 years ago. It was the starter solenoid on the generator. Easy fix.
Good luck.
__________________
96 Rexhall RollsAire, 36 ft. w/slide
Ford F53, 460 CI, Banks
150 Watts Solar w/4-12V batteries
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04-15-2019, 04:12 AM
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#4
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Senior Member
Newmar Owners Club
Join Date: Aug 2015
Location: Manalapan NJ
Posts: 493
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Your manual:
https://www.generator-parts.com/manu...c-rv/NP52G.pdf
Page 7 .
Me i would bypass the low oil shutdown.
Check the battery cables ...
You have more then one problem maybe ?
Good news the gen-set you have is almost bullet proof, they do need to be taken care of.
__________________
2018 Newmar Ventana le 4002 .NKK 22567
2015 Unlimited Sahara hardtop/soft top.
Be good,be happy, tomorrow is promised to no man!
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04-15-2019, 09:06 AM
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#5
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Junior Member
Join Date: Nov 2017
Location: Uxbridge, MA
Posts: 22
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Quote:
Originally Posted by Chief Alen
Your manual:
https://www.generator-parts.com/manu...c-rv/NP52G.pdf
Page 7 .
Me i would bypass the low oil shutdown.
Check the battery cables ...
You have more then one problem maybe ?
Good news the gen-set you have is almost bullet proof, they do need to be taken care of. |
I second that. I believe that was the issue with my dads original genny
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04-15-2019, 10:54 PM
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#6
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Member
Join Date: Nov 2016
Posts: 49
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Quote:
Originally Posted by Soppy
Check for 12 volts on the cable from the batteries to the generator , or for 12v on the fuse. Most generators require 12v to start and keep running.
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Thanks Soppy!
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04-15-2019, 10:55 PM
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#7
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Member
Join Date: Nov 2016
Posts: 49
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Quote:
Originally Posted by ajpaero
I had a similar problem 2 years ago. It was the starter solenoid on the generator. Easy fix.
Good luck.
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Thank you, I will check it.
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04-15-2019, 10:57 PM
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#8
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Member
Join Date: Nov 2016
Posts: 49
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Quote:
Originally Posted by Chief Alen
Your manual:
https://www.generator-parts.com/manu...c-rv/NP52G.pdf
Page 7 .
Me i would bypass the low oil shutdown.
Check the battery cables ...
You have more then one problem maybe ?
Good news the gen-set you have is almost bullet proof, they do need to be taken care of. |
Thank you! I keep track of the hours and make sure it is serviced and all. I got the MH from my dad and at the time the generator only had about 40 hours on it. The MH only had 25,000 miles on it. I've had it since 2016. Appreciate the help!
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04-15-2019, 10:58 PM
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#9
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Member
Join Date: Nov 2016
Posts: 49
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Quote:
Originally Posted by BVTMark
I second that. I believe that was the issue with my dads original genny
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That helps more! Thank you!
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04-16-2019, 02:25 PM
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#10
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Member
Join Date: Nov 2016
Posts: 49
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Quote:
Originally Posted by RickNau
I have a 1995 Rexhall Aerbus 31ft. It has the NP52 Generac generator. I regularly perform all maintenance as required and follow the manual on exercising the generator when it is parked for periods. A couple days ago i was running the generator with a heavy load. It was running great when all of a sudden it just shut down. No warning, sputtering or anything. After allowing it to cool i checked the oil level and the fuel level of the motorhome. All were good. I then attempted to restart the generator and it wont even turn over. When i press wither the start button on the generator or inside the MH there is nothing. I checked the fuse on the front panel of the generator and it was fine. I have no idea how this is wired into the MH but know it wasnt altered from the original installation. SO, anyone else ever have a similar issue or other thoughts? Are there other relays or fuses that may be in the system? I only know of the one on the front panel of the generator. I have checked the breakers on the front panel of the generator and the breakers on the power supply inside the motorhome. Other than that I have no idea where there may be other breakers or fuses that would cause this to happen.
I appreciate any help that you could offer!
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Thanks for all the ideas. It turned out to be the primary power from the battery to the generator. Over time the vibrating wore down the connector until it separated from the starter.
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04-16-2019, 02:26 PM
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#11
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Member
Join Date: Nov 2016
Posts: 49
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Quote:
Originally Posted by Soppy
Check for 12 volts on the cable from the batteries to the generator , or for 12v on the fuse. Most generators require 12v to start and keep running.
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You nailed it! Thanks!
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04-19-2019, 04:11 PM
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#12
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Senior Member
Ford Super Duty Owner Rexhall Owners Group
Join Date: Dec 2016
Posts: 532
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i had something similar once which turned out to be one of the house battery cables was only finger tight and had loosened enough so the cable lost sufficient connection to battery terminal. it would shift then generator would cut out.
__________________
'97 Rexhall Rexair w/tag, 460v8, air bags on tag and rear axle. Generac NP-66G generator with knock on wood ~4200hrs, 50amp.,~3mpg city, 7-8 mpg highway.
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04-22-2019, 08:10 PM
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#13
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Member
Join Date: Nov 2016
Posts: 49
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Quote:
Originally Posted by Brecklundin
i had something similar once which turned out to be one of the house battery cables was only finger tight and had loosened enough so the cable lost sufficient connection to battery terminal. it would shift then generator would cut out.
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Thank you! It was the cable that went from the house batteries directly to the starter on the generator. The connector on the generator side finally wore out and broke from the connection at the generator. It has to have a constant 12v while generator is running.
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04-23-2019, 04:16 AM
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#14
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Senior Member
Newmar Owners Club
Join Date: Aug 2015
Location: Manalapan NJ
Posts: 493
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Good news ...
Keep on rollin !
__________________
2018 Newmar Ventana le 4002 .NKK 22567
2015 Unlimited Sahara hardtop/soft top.
Be good,be happy, tomorrow is promised to no man!
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