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7 comments
Anonymous Poster

DIESEL GENERATOR NOT GIVING OUTPUT VOLTAGE

05/26/2010 11:16 AM

WHAT IS THE CAUSE IF DIESEL GENERATOR NOT GIVING OUTPUT VOLTAGE

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#1

Re: DIESEL GENERATOR NOT GIVING OUTPUT VOLTAGE

05/26/2010 11:21 AM

Give input.

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Guru
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#2

Re: DIESEL GENERATOR NOT GIVING OUTPUT VOLTAGE

05/26/2010 11:23 AM

Maybe out of diesel fuel?

Shouting makes my head hurt.

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Guru
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#3

Re: DIESEL GENERATOR NOT GIVING OUTPUT VOLTAGE

05/26/2010 11:41 AM

did you plug into the generator?

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Commentator
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#4

Re: DIESEL GENERATOR NOT GIVING OUTPUT VOLTAGE

05/26/2010 11:51 AM

Following points may be the causes-

1. Check the rotation of the generator.

2. Check the battery voltage and charge.

3. Check the battery polarity.

4. Check whether the battery chager is working.

5. Check the output fuse of the generator.

6. Check the field coil, e.g. resistance, continuity, IR value etc.

I hope, you will be able to find out the problem.

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Guru
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#5

Re: DIESEL GENERATOR NOT GIVING OUTPUT VOLTAGE

05/26/2010 12:11 PM

In addition to sidhu16's recommendations, can you gain access to the exciter terminals?

I have an older Briggs genny and if I let it set too long without running, the exciter capacitor fully discharges.

On my unit, you have to remove a small rectangular plate from the generator head that reveals two terminal connections and apply two leads from a 6 volt lantern battery for about five minutes to these terminals (with generator NOT running). The terminals are marked + and -.

After 5 minutes I disconnect the battery and start the genny and it puts out voltage.

This procedure is shown in the owners manual so it must have been a common tick with this particular brand and type.

I don't know if your set is similar, just thought I would throw this out there.

Good luck!

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Anonymous Poster
#6

Re: DIESEL GENERATOR NOT GIVING OUTPUT VOLTAGE

06/02/2010 6:15 AM

hi! all.

to me i hope his alternator is defective because if the problem is stator battery, the diesel generator will not start. but his case is different it start but no output. so my advise to him is ,he must test first his alternator. good day

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#7

Re: DIESEL GENERATOR NOT GIVING OUTPUT VOLTAGE

06/02/2010 10:08 AM

Check these by order:

1- Check the AVR

2- if it is a brushless alternator check the rotating rectifiers, and the exciter,

3- Check the PMG

4- Check the field coil fuse

5- at the last, check your alternator

may be also you have to check the meter you are using, and the circuit breaker if tripped

Good luck

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