Go Back   Keystone RV Forums > Keystone Community Forums > Odds 'n Ends
Click Here to Login

Reply
 
Thread Tools Display Modes
 
Old 06-20-2018, 11:44 AM   #1
deer30084
Junior Member
 
Join Date: Jun 2018
Location: Tallahasee
Posts: 17
Generator question

I own a 2018 Passport 2520RL that has a 15,000 btu A/C. I have an 11 yr old Briggs & Stratton model 030253 generator that has 8550 starting watts and 5550 running watts. It has a 120/240 Volt Ac, 30 amp receptacle, four prong flat type(not the RV type). I plug in with an adapter. The A/C starts up and then the compressor immediately shuts off and only the fan is barely on. The clock on the microwave blinks. The generator also bogs down. It seems that the generator can't handle the A/C and that's really what I want it to do. Based on the wattage numbers, one would think it should. Any comments would be appreciated.
__________________

deer30084 is offline   Reply With Quote
Old 06-20-2018, 12:30 PM   #2
JRTJH
Site Team
 
JRTJH's Avatar
 
Join Date: Mar 2011
Location: Gaylord
Posts: 13,078
I think your problem is in your first sentence. "I have an 11 year old...."

Chances are very good that your generator has problems and simply can't deliver the rated output. Whether it's from worn brushes, corroded armature windings, shorted windings or some other cause, I'd suspect that the generator isn't up to the task.

If your trailer can be plugged into a 30 amp (3600 watt) RV outlet and power the air conditioner, then it certainly should be capable of running on a properly functioning 5550 watt source. I'd say your generator isn't providing 5550 watts, and from the "bogging down" that occurs, if the A/C operates on a 30 amp source, the generator is providing significantly less than 3600 watts.

One of the comments I've made over the years is that running any generator "at or near" capacity, then turning it off without following a proper "cool down sequence" will destroy the insulation on the armature windings. It usually starts with one or two windings and you'll never notice the loss. Over the years, each time the insulation "heat soaks" and breaks down, a bit more "wattage capability" is lost, until one day, you start the generator, power it up, plug in something that it should run easily, and realize that it bogs down and "craps on itself".... I'm guessing that's where your 11 year old generator may be......

Try it with someone else's "known good" generator. I'm guessing your A/C will work without problems. As for the generator, troubleshooting and potential repair may be an option, then again, you may find that the parts to repair it cost more than a new, better generator.
__________________

__________________
John



2015 F250 6.7l 4x4
2014 Cougar X Lite 27RKS
JRTJH is offline   Reply With Quote
Old 06-20-2018, 01:11 PM   #3
deer30084
Junior Member
 
Join Date: Jun 2018
Location: Tallahasee
Posts: 17
John: Thank you very much for your reply. I think that explains everything I need to know. I can try some one else's known good generator and take it from there. Thanks again.
John F.
deer30084 is offline   Reply With Quote
Old 07-01-2018, 08:33 AM   #4
06trdrew
Junior Member
 
Join Date: Oct 2016
Location: Temecula
Posts: 1
I have just been doing research on generators the last 2 months and come to find out a lot of generators split the power between circuits. I know a guy that re wired his 4000W generator to one 110V outlet just for that reason. I’m not much of a tinker so I went a different route. I just bought a Champion 3500W remote start inverter generator couple weeks ago. It runs my 15k BTU AC, microwave and mini drink fridge no problems. The start up amps on the ac will surge 31 Amps then drops down to 14 while running. With a 11 year old generator and possibly not a dedicated circuit this could be the problem. My model is a champion 100262 about $1200 OTD.
Also check your elevation above sea level. Every 1000’ above sea level you will loose 3% power efficiency. I’ll be dry camping at 7,500 feet this month so I bought a elevation jet for the carb. Hopefully this unit will do the job? I’ll have to wait and see. Best of luck mate!!
06trdrew is offline   Reply With Quote
Old 07-02-2018, 05:33 AM   #5
flybouy
Senior Member
 
Join Date: Oct 2011
Location: Joppa, MD
Posts: 1,197
On dual fuel gensets the output is also reduced when using propane as apposed to gasoline.
__________________
2012 Laredo 303 TG
2010 F250 LT SCAB long bed 4X4 6.4 Turbo Deisel
flybouy is offline   Reply With Quote
Old 07-02-2018, 05:37 AM   #6
deer30084
Junior Member
 
Join Date: Jun 2018
Location: Tallahasee
Posts: 17
Generator question

Update: I got gutsy and decided to do things myself. First I took the cover off the electrical unit and looked at the "brushes." They looked good; no grooves or wear evident to me. In the lifetime of the generator, I had not used it much for power. I was pretty much stored and cranked up a few times over the years. Yes, the gas had been changed from time to time. Then I gave it a new spark plug, air filter and oil. Those had been changed a couple times over the years also. Still wouldn't power the RV A/C.

Next, I ordered a carburetor for $15 and some change from Amazon and put it on myself. It works! It powered my RV A/C and didn't even hiccup! Then I opened up the old carburetor just for curiosity and found yellow gunk inside. Not much, but it probably didn't need much to bog the unit down.

As far as sea level goes, I live about 30 miles from the Gulf of Mexico.

Hopefully this info helps someone else having the same generator problem.
deer30084 is offline   Reply With Quote
Old 07-02-2018, 08:00 AM   #7
wiredgeorge
Senior Member
 
wiredgeorge's Avatar
 
Join Date: Nov 2017
Location: Mico
Posts: 531
Quote:
Originally Posted by deer30084 View Post
Update: I got gutsy and decided to do things myself. First I took the cover off the electrical unit and looked at the "brushes." They looked good; no grooves or wear evident to me. In the lifetime of the generator, I had not used it much for power. I was pretty much stored and cranked up a few times over the years. Yes, the gas had been changed from time to time. Then I gave it a new spark plug, air filter and oil. Those had been changed a couple times over the years also. Still wouldn't power the RV A/C.

Next, I ordered a carburetor for $15 and some change from Amazon and put it on myself. It works! It powered my RV A/C and didn't even hiccup! Then I opened up the old carburetor just for curiosity and found yellow gunk inside. Not much, but it probably didn't need much to bog the unit down.

As far as sea level goes, I live about 30 miles from the Gulf of Mexico.

Hopefully this info helps someone else having the same generator problem.
I have a generator (Champion) and haven't had much call to look at the carburetor but most small engines have the "jet" as an integral part of the hex "bolt" that fits into the bottom of the bowl and holds the bowl on. If you take the old bowl off and clean the holes in the "bolt" that holds the bowl, that will fix the carburetor problem as there is little else that can go wrong with one of those type carburetors. I use welding small, serrated wires to push through those holes and carb cleaner. (I own a motorcycle carb business). The yellow stuff is congealed gas goo as the corn gas we use today collects moisture and when it dries a bit, the gas turns into goo. Doesn't happen if you use gas without the corn stuff in your small engines that are only operated once in awhile.
__________________

__________________
wiredgeorge Mico TX
96 F250XLT Crew Cab 460/C6
2002 Keystone Cougar 278EFS
2006 GL1800 Roadsmith conversion
1980 GS1000G
wiredgeorge is offline   Reply With Quote
Reply

Tags
generator

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Powered by vBadvanced CMPS v3.2.3
Disclaimer:

This website is not affiliated with or endorsed by the Keystone RV Company or any of its affiliates in any way. Keystone RVģ is a registered trademark of the Keystone RV Company.


All times are GMT -8. The time now is 03:45 PM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2018, vBulletin Solutions, Inc.