Question about Coleman Powermate Powermate 5000W Generator

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High voltage? I have a Coleman Powermate model PM0525300.19 that runs great but puts out 152 volts AC. What part do I need to replace to get the voltage down to the 120 volts level? Thanks!

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  • Coleman Expert
  • 573 Answers

Make sure the engine RPMS are correct, and change the capacitor in the end of the alternator cover

Posted on Nov 17, 2013

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Posted on Jan 02, 2017

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SOURCE: Runs great but will not produce electricity

To flash the excitor circuit on a coleman ( the generator is built by generac) you need a 12 volt battery. You quickly apply 12 volts via your 120vac recepticals. NO MORE THAN ONE OR TWO SECONDS! Then check you ac voltage. Most of the time the brushes are burnt up when voltage is low. Check the brushes first. You can access them by taking the end cap off of the generator via two to four screws. The brush holder is easy to spot, two wires leading to the front of the amature. Hope this solves your problem.

Posted on Mar 30, 2009

  • 1 Answer

SOURCE: I have a Coleman Powermate Pulse 1850 Generator.

Hi,
If the generator hasn't been used for awhile the rotor may have lost it's magnetism. All you need is to re-excite it. There are several websites that explain how to do this. It's a good place to start.
Erick

Posted on Apr 04, 2009

harlan301
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SOURCE: Coleman Powermate Generator (PM0525202.03) throttle adjustment

set at 3600 rpms at 60hz

Posted on Oct 13, 2009

  • 905 Answers

SOURCE: Powermate model 544000 generator undervoltage

There are basically 2 possibilities that can cause this.

1) Enigne RPMs are too low. but, since you already played with the throttle, this probably isn't the case. RPMs should be about 3600 though.

2) The voltage regulator / capacitor has high ESR (resistance) or is bad altogether. Replace.

Posted on Jan 04, 2010

  • 1 Answer

SOURCE: No AC out put

After working on several of this style coleman generator,i have found that the lead wires in the windings that are soldered to where your brushes would contact tend to break.I don't know if it's a poor design or just a fluke,i would check to see if your getting continuity on the rotor and go from there.They seem to either "burn off" or just break.

Posted on Apr 02, 2010

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1 Answer

The generator produce onely 73 volts ac on the 120 volts plug and 146 volts ac on the 220 volts plug . what could be causing this problem


Check all wiring and fuses associated with you voltage regulator if they check ok, find a way to adjust your voltage regulator replace it. Make sure the unit is running at 3600 rpm as well and making 60 hz.

Jul 10, 2011 | Coleman Powermate Premium Plus 6250W...

2 Answers

Coleman Powermate Powerbase 4000 -no AC Need Field test procedur


Check the voltage sent to the field when running. It will probably be around 12 volts. You can try connecting a lantern battery BRIEFLY to the field to re-magnetize the field. Try bothe polarites.

Some have had a bad rectifier and one had a bad transformer that generaates the low voltage from the generated output. He had a broken wire from the winding to the wire from the transformer. He was able to reconnect the failed solder joint.

Apr 16, 2010 | Coleman Powermate Premium Plus 6250W...

1 Answer

Have older powermate 5000 contractor gen. runs great but only puts out 5.5 to6.1 volts. has new brushes


Hello. Plug something into your generator's receptacle, say a trouble light. Then check the output. With no load at all [nothing plugged in, you will get a voltage reading that is low. regards, Joe

Jan 28, 2010 | Coleman Powermate Powermate 5000W...

1 Answer

Powermate model 544000 generator undervoltage


There are basically 2 possibilities that can cause this.

1) Enigne RPMs are too low. but, since you already played with the throttle, this probably isn't the case. RPMs should be about 3600 though.

2) The voltage regulator / capacitor has high ESR (resistance) or is bad altogether. Replace.

Jan 01, 2010 | Coleman Powermate Powermate 5000W...

4 Answers

I'm reading 130VAC on the output. Can this be


It should read 115v-120v with full load. Yes, you can slow the engine down just a little, depending on the engine, there will be a high rpm adjustment. 130v with full speed, no load, is really not too bad.

Nov 26, 2009 | Coleman Powermate Powermate 5000W...

1 Answer

Voltage is high around 150 volts. I reduced the


The speed will change the 'frequency' too. You need to make sure you still have 60 Hz. You may have need a voltage regulator adjustment, not a speed adjustment.

Aug 01, 2009 | Coleman Powermate Powermate 5000W...

1 Answer

Three year old coleman 5000/6250 generator. High


Your RPM's are too high. There is no voltage regulator in coleman generators (generator is actually made by generac) and is 100% dependent on engine speed. There is a screw under the tank when your looking in from the recoil side. It controls the governor arm. Screw it in and it incresses the rpm, out decrease. Plug something in that draws a decent load while setting the rpms since you want it to put out 120 and 240 underload. Your idle voltage does not matter.

Apr 01, 2009 | Coleman Powermate Powermate 5000W...

1 Answer

Runs great but will not produce electricity


To flash the excitor circuit on a coleman ( the generator is built by generac) you need a 12 volt battery. You quickly apply 12 volts via your 120vac recepticals. NO MORE THAN ONE OR TWO SECONDS! Then check you ac voltage. Most of the time the brushes are burnt up when voltage is low. Check the brushes first. You can access them by taking the end cap off of the generator via two to four screws. The brush holder is easy to spot, two wires leading to the front of the amature. Hope this solves your problem.

Mar 29, 2009 | Coleman Powermate Premium Plus 6250W...

2 Answers

I have a Coleman Powermate Pulse 1850 Generator.


Hi,
If the generator hasn't been used for awhile the rotor may have lost it's magnetism. All you need is to re-excite it. There are several websites that explain how to do this. It's a good place to start.
Erick

Mar 23, 2009 | Coleman Electrical Supplies

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