Watts Onan Portable Generator - 4000 , Model# 5500 - Answered Questions & Fixed issues
Have a onan 4500 watt generator on a bucket truck.
Onan units have a breaker switch on them that has to be in the right position or you get no power. Can't tell you for sure where it is on the 4500 but on the 4000 RV series it is tucked in behind the on board start switch
3/30/2019 1:48:04 AM •
Watts Onan...
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Answered
on Mar 30, 2019
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1,703 views
I have a Wen Power
hi
check that the voltage regulator is in good working order,
check insure the governor is free from dirt and that the retainer light spring is not fouling , and check the volcanizing elements are not shot circuiting or the insulation is braking down
1/2/2018 11:47:41 PM •
Watts Onan...
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Answered
on Jan 02, 2018
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419 views
Our onan generator ran out of gas. we refueled but
No, not the filter, you will need to try to prime the carb better then with starting fluid, pour some gasoline down the carb, you may have to do this a few times, but everything will fire back up again once you get the air out of the system
8/25/2017 7:40:44 AM •
Watts Onan...
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Answered
on Aug 25, 2017
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2,793 views
Onan generator dies after 2-3 hours of running ,
This sounds like overheating. These small generators don't have overheating protection, but if a low oil pressure or low oil level is present it may be the reason for stopping.
Check the oil level in the starting conditions and again when it stops. It may become under the "stop" level and after some time the precipitated oil has reached the "start" level. The same may be with oil viscosity and oil pressure.
Try to add some oil or change the oil with bigger viscosity.
8/25/2017 7:36:59 AM •
Watts Onan...
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Answered
on Aug 25, 2017
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4,751 views
I have an onan 4000.
this may sound like a smart *** answer but turn on its side and shake it the low oil switch is stuck
8/25/2017 7:32:00 AM •
Watts Onan...
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Answered
on Aug 25, 2017
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692 views
ONAN 4000 RUNS FOR ONE HOUR AND DIES--ANY IDEAS WHY?
Try to restart to see what happens. However, make sure to have a volt meter to check output voltage. You may be loosing voltage and therefore it shuts down. Check oil pressure switch, rings, brushes. Replace brushes if they are less than 1/2" short and clean rings with emory cloth until copper is noticable.
8/25/2017 6:53:18 AM •
Watts Onan...
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Answered
on Aug 25, 2017
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909 views
Onan MicroQuiet 4000 Generator
Remove the air cleaner and inside near the throat of the carb is two bolts holding the carb to the intake remove these. Unhook the fuel line and twist the carb to allow the linkages to remove.
8/25/2017 6:42:11 AM •
Watts Onan...
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Answered
on Aug 25, 2017
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4,799 views
Physical location of control board on an Onan 5500
It is right behind the start switch. There is one bolt that holds your start switch housing down, remove it and the housing. You will see the P1 connector with a lot of wires plugged into the control board
11/13/2015 6:18:42 PM •
Watts Onan...
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Answered
on Nov 13, 2015
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2,191 views
How to get gas to the inside of my carburetor on an older onan genset 4000
Could be or the fuel pump gummed up. Pull off fuel line to carb, unplug fuel pump and conenct direct to battery, see if fuel comes out the line (catch in a container) make sure when you conenct to battery no sparks near the open fuel line. If no fuel replace pump, if fuel pull car apart
3/1/2015 10:32:52 PM •
Watts Onan...
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Answered
on Mar 01, 2015
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187 views
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