RV News RVBusiness 2021 Top 10 RVs of the Year, plus 56 additional debuts and must-see units → ×
RV Trip Planning Discussions

Go Back   iRV2 Forums > MOTORHOME FORUMS > MH-General Discussions & Problems
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 05-13-2018, 08:28 PM   #1
Senior Member
 
Join Date: Dec 2017
Posts: 239
143v coming out of generator

In my DP I have an 8k diesel power tech generator. today I was trouble shooting my AC (bad fuse in thermostat) I discovered that my generator was outputting 143 volts. everything seems to be ok with that. lights, ac, microwave, fridge, central vac. Should I be concerned? is there some kind of voltage regulator that could have gone out and still allow the generator to function? the voltage is steady there is little to no fluctuation.
__________________
97' Overland Ospery 4012, 42' long, 41,000 miles, 8.3 cummins, 6 speed allison, freightliner chassis, pulling a 24' enclosed trailer.
Shawn6596 is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 05-13-2018, 08:34 PM   #2
Senior Member
 
Mr_D's Avatar
 
Country Coach Owners Club
Winnebago Owners Club
Solo Rvers Club
iRV2 No Limits Club
Join Date: May 2011
Location: Vancouver, WA
Posts: 37,151
What model of PowerTech?
And no, that voltage is not safe.
__________________
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft, HWH Active Air
Charter Good Sam Lifetime Member, FMCA, SKP
RV'ing since 1957, NRA Benefactor Life, towing '14 Jeep JKU Dragon Edition
Mr_D is offline   Reply With Quote
Old 05-13-2018, 08:39 PM   #3
Senior Member
 
Join Date: Dec 2017
Posts: 239
Quote:
Originally Posted by Mr_D View Post
What model of PowerTech?
And no, that voltage is not safe.

model IDL8000
__________________
97' Overland Ospery 4012, 42' long, 41,000 miles, 8.3 cummins, 6 speed allison, freightliner chassis, pulling a 24' enclosed trailer.
Shawn6596 is offline   Reply With Quote
Old 05-13-2018, 09:15 PM   #4
Senior Member
 
Rkesselus's Avatar
 
Tiffin Owners Club
Join Date: Aug 2016
Location: Bastrop Texas
Posts: 1,290
Something is amiss with the regulator that controls the RPM of Gen Set. Need to knowmore about the generator Make Model Serial # might be a easy fix if it is a spring system that can be regulated.
__________________
2000 Allegro Bus 35R 3126 Cat 300 Allison 3060MD 6 speed
Rkesselus is offline   Reply With Quote
Old 05-13-2018, 09:18 PM   #5
Senior Member
 
Rkesselus's Avatar
 
Tiffin Owners Club
Join Date: Aug 2016
Location: Bastrop Texas
Posts: 1,290
Something is amiss with the regulator that controls the RPM of Gen Set. Need to know more about the generator Make Model Serial # might be a easy fix if it is a spring system that can be regulated. Take the load off and then turn ac on and see what moves, that would lead you to the regulator system.
__________________
2000 Allegro Bus 35R 3126 Cat 300 Allison 3060MD 6 speed
Rkesselus is offline   Reply With Quote
Old 05-13-2018, 09:25 PM   #6
Senior Member
 
Tony Lee's Avatar
 
Join Date: Sep 2012
Location: Tasmania now, USA/Canada/Alaska in April
Posts: 2,473
You first need to check the voltage with ANOTHER meter before tearing stuff apart.

Some reasonable multimeters have a frequency option so that will tell you if the speed is too high.

THEN you can start chasing a cure
__________________
Tony Lee - International Grey Nomad. Picasa Album - Travel Map
RVs. USA - Airstream Cutter; in Australia - MC8 40' DIY Coach conversion & OKA 4x4 MH; in Germany - Hobby Class C; in S America - F350 with 2500 10.6 Bigfoot camper
Tony Lee is offline   Reply With Quote
Old 05-13-2018, 09:59 PM   #7
Community Moderator
 
CountryFit's Avatar


 
Join Date: Sep 2011
Location: Between the Oceans
Posts: 6,864
Blog Entries: 4
143v is a little too high.

i have a powertech cd 8000 genset. about 2 years ago, i lost 120v ac although genset was running. i chased it down and found out that the genset output 140v and my ems cut it off to protect the entire electronics. i unplugged the voltage regulator, took a pic and sent to their tech support. "jeff", the tech, looked at the photo and told me instantly that thing went kaput. ordered a replacement from them for $240 (ouch!) all went well.
__________________
Steven & Polly
2000 Country Coach Intrigue 40' with ISC 350
2014 Ford C-Max Energi
CountryFit is offline   Reply With Quote
Old 05-14-2018, 04:41 AM   #8
Senior Member
 
Join Date: Dec 2017
Posts: 239
Quote:
Originally Posted by CountryFit View Post
143v is a little too high.

i have a powertech cd 8000 genset. about 2 years ago, i lost 120v ac although genset was running. i chased it down and found out that the genset output 140v and my ems cut it off to protect the entire electronics. i unplugged the voltage regulator, took a pic and sent to their tech support. "jeff", the tech, looked at the photo and told me instantly that thing went kaput. ordered a replacement from them for $240 (ouch!) all went well.
so you have your EMS wired in after the transfer switch?
__________________
97' Overland Ospery 4012, 42' long, 41,000 miles, 8.3 cummins, 6 speed allison, freightliner chassis, pulling a 24' enclosed trailer.
Shawn6596 is offline   Reply With Quote
Old 05-14-2018, 08:53 AM   #9
Senior Member
 
wa8yxm's Avatar
 
Damon Owners Club
Workhorse Chassis Owner
Join Date: Mar 2009
Posts: 24,023
I would not say it is the RPM regulator without checking frequency

Using a KILL-A-WATT meter plug it in and read voltage and frequency

If the frequency is more than about 62 HZ then adjust regulator
If the Frequency is 58-62 then you need to fix the voltage regulator

How to do that.... I do not know. not something I have ever done.
__________________
Home is where I park it!
wa8yxm is offline   Reply With Quote
Old 05-14-2018, 09:54 AM   #10
Senior Member
 
Holiday Rambler Owners Club
Join Date: Sep 2013
Location: Phoenix,Az
Posts: 433
Are you sure it's not 14.3?
__________________
2009 Holiday Rambler Navigator
2020 GMC Denali 3500 SRW
Now shopping 5th Wheels
RVNewbie55 is offline   Reply With Quote
Old 05-14-2018, 10:05 AM   #11
Community Moderator
 
CountryFit's Avatar


 
Join Date: Sep 2011
Location: Between the Oceans
Posts: 6,864
Blog Entries: 4
Quote:
Originally Posted by Shawn6596 View Post
so you have your EMS wired in after the transfer switch?
yes i believe so. the factory installed progressive industry ems-hw50c hardwired is a gateway for shore and gen power on my coach. it defaults to 125v (i think). cd8000 genset typically outputs around 120-122v.

looks like you don't have an ems to safeguard the load devices, correct? with that high voltage it could really cause damages to them. i would fix it now.

to rule out other possibilities, (1) use another voltmeter to check; (2) plug into shore power and measure...
__________________
Steven & Polly
2000 Country Coach Intrigue 40' with ISC 350
2014 Ford C-Max Energi
CountryFit is offline   Reply With Quote
Old 05-14-2018, 10:19 AM   #12
Member
 
Mid Atlantic Campers
Forest River Owners Club
Join Date: Oct 2013
Posts: 84
Do you have a good, RMS volt meter? has it been checked?
__________________
2015 FR grey wolf 27RR
2015 chevy 3500HD
kcmusa is offline   Reply With Quote
Old 05-14-2018, 10:31 AM   #13
Senior Member
 
Ford Super Duty Owner
Join Date: Dec 2009
Location: Mcdonough, Ga.
Posts: 5,386
v The suggestion to use a second meter is right on. If you are really at 143 volts that is way to high. Max voltage with zero load is 131 volts.
__________________
1998 Pace Arrow 35 ft. F53 Ford V10 2012 Honda Civic toad
32 years mechanic at Delta Air Lines 15 year motorhome service manager. 3 popups....2 travel trailers....5 motorhomes....loved them all.
ga traveler is offline   Reply With Quote
Old 05-14-2018, 08:25 PM   #14
Senior Member
 
Join Date: Dec 2017
Posts: 239
I have checked it with 3 different meters, one is nice craftsman digital with amp clamp, an old analog one that has always been true, and the third is a fluke. they all tested spot on from one and other, and read the shore power at 121. no EMS, I ordered a hard wired progressive. I am sure it is 143. if it were 14.3 then nothing would work.
I am leaning toward the voltage regulator. I am still doing some research. I will report back as things develop. thanks for all the input.
https://www.amazon.com/dp/B003AN1UA8...v_ov_lig_dp_it
__________________
97' Overland Ospery 4012, 42' long, 41,000 miles, 8.3 cummins, 6 speed allison, freightliner chassis, pulling a 24' enclosed trailer.
Shawn6596 is offline   Reply With Quote
Reply

Tags
generator



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
ACs not coming on when running generator patallee Entegra Owner's Forum 13 05-20-2017 10:37 AM
Slide Out Seal Coming Out tkamsal Winnebago Industries Owner's Forum 13 03-26-2014 08:57 AM
Push out coming out from bottom wildmandmc Winnebago Industries Owner's Forum 8 01-14-2014 10:44 PM
Tour generator cover coming unglued Tpflyer Winnebago Industries Owner's Forum 4 04-20-2013 09:23 PM
Slide out's coming out while driving? Rocket Heart Winnebago Industries Owner's Forum 8 05-13-2008 04:44 PM


All times are GMT -6. The time now is 11:26 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, vBulletin Solutions, Inc.