Reply
 
Thread Tools Display Modes
Old 07-16-2011, 09:55 PM   #1
Junior Member
 
Join Date: Jun 2011
Posts: 19
Generator problem

I'm about three weeks into my new to me 2007 Georgetown 370TS. I can't get my generator, Onan 5500 to start, or should I say stay running. It will start but as soon as I let off the switch it dies. The code flashes 32, which means "low cranking speed fault". I've replaced both coach batteries, cleaned the cables. I have not replaced the oil or filter yet and the generator only has 92 hours. I can't get into the nearest dealer until mid August. Any clues as to what's going on? The generator is really clean and no leaks of any kind. The fuel tank is full.
__________________

__________________
Flyboy740 is offline   Reply With Quote
Old 07-16-2011, 10:14 PM   #2
Site Team - Lou
 
Herk7769's Avatar
 
Join Date: Oct 2009
Location: South Eastern PA
Posts: 21,169
When my Yamaha does this the oil is low. Most generators have low oil cut outs to save the motor. There is a timer that allows the generator to run briefly to pressurize the galleries but if the pressure does not rise it shuts down. Maybe the oil IS low or the sensor is bad.

Just a thought as I do not have a motor home type generator.
__________________

__________________

Lou and Laura with Bella - German Short Hair Pointer
2008 GMC Sierra 2500HD Crewcab SB Allison Duramax
2010 Flagstaff 8526RLWS - Superglide 3300
HAM CALLSIGN - KC3FFW
Herk7769 is offline   Reply With Quote
Old 07-16-2011, 11:14 PM   #3
Senior Member
 
Join Date: Apr 2011
Posts: 313
A few things could cause this. With onan any one or combo of the safe systems such as oil pressure, over / under crank sensors, over temp etc.. will cause the shut down as soon as start switch is released. Also no AC output will cause this. With onan when the start button is depressed the 12 volt systems get their power from the batteries to get started, then as its starting it should start producing 120 VAC when the start button in released it loses its 12 VDC from the batteries and starts receiving it from the gen head side. The gen head is 120 VAC but it is also uses a bit of the 120 and creates a 12V (approx. 10 amp) charge circuit to charge the batteries and run the 12V systems on the gen.
__________________
~Andrew
99 F250 Super Cab Short Bed 7.3 Powerstroke
84 24' Yellowstone Camino (oldie)

http://rvpdi.com
Acableguy06 is offline   Reply With Quote
Old 07-17-2011, 07:59 AM   #4
Junior Member
 
Join Date: Jun 2011
Posts: 19
So the real answer is, let an expert fix it.
__________________
Flyboy740 is offline   Reply With Quote
Old 07-17-2011, 09:09 AM   #5
Senior Member
 
fonzie's Avatar
 
Join Date: Sep 2010
Location: Eastern Ontario
Posts: 3,237
As Lou mentionned, check oil level first and top up if required. Most common condition is low oil.
__________________
Fonzie
2011 Rockwood 8319SS with ProPride 3P hitch/GoodYear Marathons/TST TPMS 507
2008 F250 Lariat CC SB 6.8L V10 4.10 axle ratio (NITTO TERRA GRAPLER G2 LT275/65R20E)
Yamaha 3000iseb generator:Progressive Ind. EMS-HW30C : Eastern Ontario
Nights Camped: 2011(21) 2012(36) 2013 (17) 2014 (18) 2015 (18) 2016 (36) 2017 (32)
fonzie is online now   Reply With Quote
Old 08-02-2011, 11:30 PM   #6
Junior Member
 
Join Date: Jun 2011
Posts: 19
Oil

I went as far as to replace the oil and filter. Still no generator. I've been told it might be the brushes. Guess I'll check them tomorrow. After I get done, maybe I'll open a generator shop....Not..Ha
__________________
Flyboy740 is offline   Reply With Quote
Old 08-06-2011, 11:19 PM   #7
Junior Member
 
Join Date: Jun 2011
Posts: 19
Might have found the problem....A local truck repair station said I should check the brushes. I pulled them out and found one with scaring on it. I took a file and smoothed it out and the generator started and ran like a charm. I will be ordering another set of brushes to replace those I have in it.
__________________

__________________
Flyboy740 is offline   Reply With Quote
Reply

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



» Virginia Campgrounds

Reviews provided by




ForestRiverForums.com is not in any way associated with Forest River, Inc. or its associated RV manufacturing divisions.


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 06:02 PM.