Question about Watts Onan Portable Generator - 4000 , Model# 5500

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Onan 4000 genset not getting gas. will start with spray can but dies.

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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erickg
  • 116 Answers

SOURCE: Oil type for Onan 4000 generator

SAE 15W-40 is what i used to use
synthetic? not sure about that one there may be oil pres switch that could give you a problem.

Posted on Apr 17, 2009

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mamicheddy
  • 79 Answers

SOURCE: ONAN 4000 RUNS FOR ONE HOUR AND DIES--ANY IDEAS WHY?

If your unit is running fine and then all of a sudden it just shuts down it is usually that you stopped creating voltage. You need to check the brushes and rings. If you are able to start the unit right up without any hesitation and voltage is being produced, then your fuel pump is breaking down. If you do have hard time restarting then you may have clogged fuel filters. One at the carberator and one at the fuel pump.

Posted on May 10, 2009

  • 6 Answers

SOURCE: 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.

Posted on Sep 28, 2009

FreeTech
  • 426 Answers

SOURCE: onan generator emerald III genset. I push the

check the run relay

Posted on Mar 08, 2010

  • 1584 Answers

SOURCE: I Onan 5000 genset plus won't start. When I push

Sounds like a flat battery.

Posted on Mar 16, 2010

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1 Answer

What is the point gap for model:CCKA-S/25830?


Spark Plug # RS17YX for Onan 167-0272 on RV Gensets ...

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Generator Parts Spark Plug # RS17YX for Onan 167-0272 on RV Gensets ... for this plug require the spark gap to be set at .025" (25 thousandths of an inch).

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Nov 04, 2015 | Watts Onan Portable Generator - 4000 ,...

1 Answer

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

Sep 30, 2014 | Watts Onan Portable Generator - 4000 ,...

1 Answer

My onan emerald 1 genset is not transfering charge to the battery


Assuming your generator has the battery charger option?
Measure the battery voltage at the battery lead in the generator, without the unit running, or the motorhome ignition on. It should read approx 12V after the unit has been sitting a while. Then start the generator, it should rise to approx 13.8 with a good battery. If it does not then the stator windings and charge rectifier in the generator should be checked. If the voltage is 13.8 approx with the generator then you problem lies further upstream, and possibly with an isolation solenoid. If you generator does not have a battery charge winding/option then charging comes from the line voltage via a motorhomes inverter, check the inverter.

Sep 08, 2012 | Onan RV QG, 2500W GenSet, LP Gas

1 Answer

I have a fault code of 37 on my onan 5500 genset.. Whats this mean?


Usually what that means is that the genset Configuration is not set correctly you will need to bring it to a factory authorized service center for them to correct this.

Oct 17, 2011 | Watts Onan Portable Generator - 4000 ,...

1 Answer

Onan Generator stopped working in motorhome because the gas got too low. I blew out the front fuel filter,changed oil and filter, air filter, one spark plug and now it won't start. Is there a fuel shut...


Yes it wil not let you run your motorhome out of fuel they set it up that way so you dont strand yourself you may have a air bubble in the fuel line to the generator try blowing air generator fule line back into the tank

Jan 31, 2010 | Watts Onan Portable Generator - 4000 ,...

1 Answer

Onan genset generator in rv is running but no power to rv...circuit breaker has been checked and main breaker in rv has been checked still no power


on your generator ther is a reset if thats not it check for fuses if still no then u neda check the wires in the pluges if no then ur generator it self needs re bilt

Aug 29, 2009 | Watts Onan Portable Generator - 4000 ,...

1 Answer

Onan genset worked fine a week ago


is it an electric start?...if so check battery and/or look for loose battery cable..Ground?...vibration during use could have loosened the cables...the make ready people sometimes do not tighten properly

Jul 21, 2009 | Watts Onan Portable Generator - 4000 ,...

1 Answer

I have an onan 2800 gen that will not charge


If the govenor didn't work that means that you placed the linkage on the carberator the wrong way. This will cause the genset to overspeed and possibly stop the genset from creating voltage. If the genset does not create voltage then you won't have a charger. Fix the linkage first by looking to make sure that the throttle plate is closed before starting genset. Once you start the genset check for voltage.

Apr 12, 2009 | Watts Onan Portable Generator - 4000 ,...

1 Answer

Only runs if I hold the start switch


The problem is that you are not creating voltage. Remove front cover. Place a volt meter on the breaker. Start genset and you will see no voltage present. The problem could be with the brushes, rings, rotor, stator, voltage regulator, or control board.

Apr 10, 2009 | Watts Onan Portable Generator - 4000 ,...

1 Answer

Onan microlite 4000 generator no output


Hi, The 4000 rv unit unit is equipped with full diagnostics, and is indicated by the status light blinking. The blinking sequence, blinks a code as to the fault. If your unit runs and the status light is on without blinking, it is either the circuit breaker on the genset or in your distribution panel that needs to be reset. Good Luck, this should Fixya!

Mar 02, 2009 | Watts Onan Portable Generator - 4000 ,...

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