Reply
 
Thread Tools Display Modes
Old 07-22-2016, 12:58 AM   #1
Senior Member
 
Join Date: Nov 2013
Location: Denver, CO
Posts: 140
Inverter question

My sig trailer came with a 32" LCD TV, powered by AC. I finally decided to buy this 150W inverter and wire it up behind the TV so we can use it without having to run the generator when boondocking. For some weird reason, when I power the TV off the inverter, it creates horizontal lines on the screen, but only when playing from an actual video source. What I mean is, the startup screen that shows the manufacturer logo looks perfect. I've used a kill-a-watt meter to see what this TV draws, and it's 26-27 watts. After about 2 minutes of being on, the inverter craps out, and the TV shuts off.

Of course I cut the cable on the inverter so I could hard wire it, so I'm not sure I could return it. I really like this inverter though, because it's got 2 outlets and two 2.4A USB ports. What I'm wondering is, if I'm to buy a new inverter, would a pure sine wave inverter fix this, or does it sound like maybe my inverter is just bad? Or maybe it's both. Certainly charges the electronics just fine.

Any ideas?
__________________

__________________
TV: 2013 Ram 2500 4x4 mega cab w/6.7l Cummins
Trailer: 2013 Palomino Puma 27SBU
bitNine is offline   Reply With Quote
Old 07-22-2016, 11:25 AM   #2
Senior Member
 
Join Date: Mar 2014
Location: Mountain Foothills of Southern Alberta
Posts: 633
I would say you have two problems.

1) The TV draws more wattage than the inverter can continually put out.
2) The inverter is a modified sine wave than is causing some interference.

Purchase a 300 watt pure sine wave and you should be good to go.
__________________

__________________

2007 Surveyor SV230
- 200 Watts Solar/MPPT Controller - 230 AH Battery Bank - 600 watt PSW Inverter - (2) 2000 watt Inverter Generators - LED Lighting - Boon Docking 99% of the time.
2009 F150 - 5.4 Litre - 6 speed - Tow Package
boondocking is offline   Reply With Quote
Old 07-22-2016, 12:43 PM   #3
Senior Member
 
Join Date: Oct 2013
Posts: 380
I have a 150w inverter to run my 32" TV and it works fine. I bought a cheap one at Walmart that plugs into a 12v cigarette lighter style socket. It sounds as if you hard wired yours somehow. How long of a run from the batteries to the inverter and what size wire did you use? My 12v accessory socket was installed with 8 ga wire and is rated at 15A. 12v loses a lot when run for more than a short distance. Is it possible that the wiring is too light and the inverter is not getting enough juice to operate effectively?


Sent from my iPhone using Forest River Forums
__________________
2001 Ford F250 7.3l converted to F350 specs
2014 Flagstaff 8528RKWS
2 - 2006 model year Border Collies
Mtelkman is offline   Reply With Quote
Old 07-22-2016, 04:21 PM   #4
Senior Member
 
Join Date: Nov 2013
Location: Denver, CO
Posts: 140
Without a doubt, the TV does not draw more power than the inverter can put out. It's a 150W inverter, and TV uses only 26W.

The Inverter is most likely a modified sine wave type. Do these typically cause interference in LCD TVs?

I measured the factory wire, and it's 14ga, which is good for 15A, and is fused as such. 8ga would certainly be overkill, as at 8' that would support closer to 40A. Plus, I wouldn't be able to run a new wire without completely removing the fridge. The run is only from the top of the fridge to the converter which is below the fridge, so no more than about 8' of wire.

I have no problem buying a pure sine wave inverter, but I want to know I'm not wasting my money and that it's actually needed.
__________________
TV: 2013 Ram 2500 4x4 mega cab w/6.7l Cummins
Trailer: 2013 Palomino Puma 27SBU
bitNine is offline   Reply With Quote
Old 07-22-2016, 05:11 PM   #5
Senior Member
 
Join Date: Mar 2014
Location: Mountain Foothills of Southern Alberta
Posts: 633
You must have some extraordinary 32 inch LCD inch TV if it uses only 27 watts. A top of the line 32 inch LED TV uses more wattage.
__________________

2007 Surveyor SV230
- 200 Watts Solar/MPPT Controller - 230 AH Battery Bank - 600 watt PSW Inverter - (2) 2000 watt Inverter Generators - LED Lighting - Boon Docking 99% of the time.
2009 F150 - 5.4 Litre - 6 speed - Tow Package
boondocking is offline   Reply With Quote
Old 07-22-2016, 05:18 PM   #6
Senior Member
 
Join Date: Mar 2014
Location: Mountain Foothills of Southern Alberta
Posts: 633
Try an experiment. Plug a 100 watt bulb into the inverter and see if it shuts down.
__________________

2007 Surveyor SV230
- 200 Watts Solar/MPPT Controller - 230 AH Battery Bank - 600 watt PSW Inverter - (2) 2000 watt Inverter Generators - LED Lighting - Boon Docking 99% of the time.
2009 F150 - 5.4 Litre - 6 speed - Tow Package
boondocking is offline   Reply With Quote
Old 07-22-2016, 05:22 PM   #7
Member
 
friendofacatahoula's Avatar
 
Join Date: Mar 2016
Location: Alberta
Posts: 74
Its possible its a LED tv? I want to say the tv in our mini lite is 15 watts. I believe its a 24"? A 32" led drawing 27 watts I don't think is too far fetched? maybe? The DVD player system obviously uses more but is 12 volt.

If the tv does not have any lines when hooked to shore power or other power like a generator when playing the same video source it is most likely related to the inverter.

Does it have a grounding lug? My GoPower Pure Sine has a chassis ground although I have never used it. Once I get around to permanently installing it I will chassis ground it.
__________________
2015 MiniLite 2109S
2016 Ram 3500 6.7
friendofacatahoula is online now   Reply With Quote
Old 07-22-2016, 07:44 PM   #8
Senior Member
 
rsdata's Avatar
 
Join Date: Aug 2014
Location: Northern KY
Posts: 731
depending on the brand/co$t you may not actually get 150 watts from it... if it shuts down the TV, then it is being overdriven... that is it is not putting out the wattage the label says it does...

lines in the TV input signal indicate it is putting out "dirty" RF or AC power line interference that gets into the TV and is being displayed on the screen...

pure sine wave is a much better choice to eliminate RF interference, or at least something a little more co$tly if you purchase another modified sine wave...

before you cut cables on your next purchase, try it out for awhile
__________________


2014 Shamrock 183
2014 RAM 1500 SLT Crew Cab HEMI 3.21 8 Spd 4X4
rsdata is offline   Reply With Quote
Old 07-27-2016, 07:46 PM   #9
Senior Member
 
Too Tall's Avatar
 
Join Date: Mar 2014
Posts: 811
Quote:
Originally Posted by boondocking View Post
Try an experiment. Plug a 100 watt bulb into the inverter and see if it shuts down.
This is a great suggestion and will rule in or out the inverter being overloaded.

BTW, I'm running the TV off a 200 watt that is over 20 years old, very low tech.
__________________

__________________
Rockwood 2104S, 2014 Ram 2500 Diesel.
USMC 68 -70
Too Tall is offline   Reply With Quote
Reply

Tags
inverter

Thread Tools
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




» Virginia Campgrounds

Reviews provided by




ForestRiverForums.com is not in any way associated with Forest River, Inc. or its associated RV manufacturing divisions.

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 05:38 AM.