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Onan Marquis 7000 - No Output Power

Cocky_Camper
Explorer
Explorer
My grandpaw has a 95 Pace Arrow with a Marquis Onan 7000 model 7NHMFH261050 and it has no output power.

The ATS went out a few years ago, and his RV repair guy installed him a 50amp end on the generator to plug the RV power cord straight into instead of replacing the ATS.

That worked for several years with no problems when he ran the generator. Now the generator has no output power at all. The generator starts and runs great still though.

Anyone have any ideas on anything simple that it could be for us to check?
2004 Sea Breeze by National RV - 8341

Former Coaches:
2006 Keystone Zeppeline 291 - TT
2000 Aerolite Cub F21 - Hybrid TT
1991 Coleman Pop Up

Formerly known as: hybrid_camper
8 REPLIES 8

Cocky_Camper
Explorer
Explorer
Dutch_12078 wrote:


Onan NHM Operator's Manual


Thanks for the link. I have looked online for the manual with no luck at all!
2004 Sea Breeze by National RV - 8341

Former Coaches:
2006 Keystone Zeppeline 291 - TT
2000 Aerolite Cub F21 - Hybrid TT
1991 Coleman Pop Up

Formerly known as: hybrid_camper

Dutch_12078
Explorer
Explorer


Onan NHM Operator's Manual
Dutch
2001 GBM Landau 34' Class A
F53 chassis, Triton V10, TST TPMS
Bigfoot Automatic Leveling System
2011 Toyota RAV4 4WD/Remco pump
ReadyBrute Elite tow bar/Blue Ox baseplate

dodge_guy
Explorer
Explorer
Breakers are behind the access panel on the generator.
Wife Kim
Son Brandon 17yrs
Daughter Marissa 16yrs
Dog Bailey

12 Forest River Georgetown 350TS Hellwig sway bars, BlueOx TrueCenter stabilizer

13 Ford Explorer Roadmaster Stowmaster 5000, VIP Tow>
A bad day camping is
better than a good day at work!

Sam_Spade
Explorer
Explorer
way2roll wrote:
Should be a breaker on the generator itself - check to see if it's tripped.


This.

And I assume you have checked to be sure that the cord is firmly plugged into the gen outlet ??

I have had good dealings with the Onan/Cummins dealer in my area.
'07 Damon Outlaw 3611
CanAm Spyder in the "trunk"

Bruce_Brown
Moderator
Moderator
Check the brushes. Years ago friends had one that would run but no output. We took it out and dropped it in my garage. Found one brush cracked. $26.00 later it was working as advertised.
There are 24 hours in every day - it all depends on how you choose to use them.
Bruce & Jill Brown
2008 Kountry Star Pusher 3910

Cocky_Camper
Explorer
Explorer
RLS7201 wrote:
2 circuit breakers on the right side as you face the generator. Not out in the open. You'll have to look close.
Also, that generator is an NHM, not NHH..........
I have the same generator on my 95 Bounder.

Richard


You are correct with the model. I edited that. I did not see any breakers when I was out there yesterday, but I will certainly take a closer look when I go back, which will be next week as I will be out of town this weekend.

Thanks!
2004 Sea Breeze by National RV - 8341

Former Coaches:
2006 Keystone Zeppeline 291 - TT
2000 Aerolite Cub F21 - Hybrid TT
1991 Coleman Pop Up

Formerly known as: hybrid_camper

RLS7201
Explorer
Explorer
2 circuit breakers on the right side as you face the generator. Not out in the open. You'll have to look close.
Also, that generator is an NHM, not NHH..........
I have the same generator on my 95 Bounder.

Richard
95 Bounder 32H F53 460
2013 CRV Toad
2 Segways in Toad
First brake job
1941 Hudson

way2roll
Nomad III
Nomad III
Should be a breaker on the generator itself - check to see if it's tripped.
2023 FR Sunseeker 2400B MBS