Question about Honda 3000 Watt Portable Generator

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Voltage output is only 50 volts instead of 120 volts

What should i look for to fix my generator?

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Posted on Jan 25, 2009

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More than likely your voltage regulator is out. The generator produces electricity, so you know the rotor and stator are OK. The 50 volts comes from the magnets permanent properties. The reason you are not getting 120 is because rotor or electron magnet is not getting any power supplied to it, which it needs to produce the amount of electrons you need to have 120vac. Make sure your engine is running at 60 hz first, and you should ohm out the windings and circuits that connect to your regulator.

Posted on Feb 05, 2009

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Is your generator AVR (automatic voltage control) or with a capaster type, 1st you check speed Hz if its ok at 60Hz and you did not find any viual problem then you check AVR or capaster i hope your problem will solve.

Posted on Aug 08, 2012

3 Suggested Answers

caroldon
  • 17129 Answers

SOURCE: My older Honda EM3000 generator

The voltage can go down provided the engine RPM drops off. So check if the oil change and scheduled maintenance was done on time.
If the RPM is set up according to the load , the voltage will rise up , but if the voltage is low the Load connected can also be high.
So if in dry load the generation is low you might need a full check up,overhauling/cleaning out of the alternator, engine to get his back to shape.

Posted on Sep 29, 2010

GeneratorDan
  • 44 Answers

SOURCE: have a generator honda ez2500

How many volts does it produce?

Posted on Mar 17, 2011

  • 70 Answers

SOURCE: the voltage output from outlet

there is a problem with the internal connection,unless the genset is worth over 200 dollars dont bother trying to fix it

Posted on Jun 12, 2011

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Hi and welcome to FixYa. I am Kelly. Since you did not mention the make or model number of your generator I will respond in generic terms. If your generator is at 127 volts with NO load it is adjust at the very top end of the manufacturers limits. There is a 10% tolerance so 120 VAC + 12 is 127 VAC. Under an electrical load above 500 watts the generator should drop the output voltage slightly so your generator would still be within factory limits. Personally on any generator as a repair person; I set the output voltage at 126 VAC no load so that when the user puts the generator to work the output voltage is good. If your generator is running at 127 VAC under load then you can adjust the governor screw on the governor plate CCW about 1/2 turn to drop the voltage. Without a generator model number or engine number I can not tell you exactly where the governor plate is on your engine / generator. The screw will have a lock nut that you must loosen 1/4 turn then turn the adjustment screw CCW to drop the voltage. Just make sure to re-tighten the lock nut when the adjustments are complete. Mind you by decreasing the output voltage you also drop the output freqency at the same time you decrease the output voltage. It is better to have 125 -127 VAC under a no load condition as the more electrical load you add the more voltage drop you will notice. It is best to adjust the generator to 122.5 -123 VAC under a medium load. (50% of output capacity) A bread toaster is 1400 - 1600 watts and is a good load for a 3000 watt generator. Also a good hand held hair dryer will use around 1600 watts. If you use this type of load and the voltage output is 122.5 to 123 VAC I would not adjust anything. I have been working on generators since 1970 so this is nothing new for me. I hope that you understand everything I posted. If not, feel free to ask as many questions as you wish in any future response.
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