I bought a used TT, 2002 Conquest (Gulfstream). Long story short I plugged the TT into shore power w/o a battery, burned out a number of light bulbs. Installed a Walmart Deep Cycle Marine battery and replaced the burned out light bulbs and everything seems fine. However using a digital multimeter I see the light receptacles are getting about 18v. Where power is coming into the fuse panel I am also getting 18+ v. At the battery I am getting 16v. All these readings seem high to me. Anyone?s thought? The converter is a Magnetek 7345. Thanks for any guidance.
Converter ?cooking??
- Thread starter DougH57
- Start date
The friendliest place on the web for anyone with an RV or an interest in RVing!
If you have answers, please help by responding to the unanswered posts.
If you have answers, please help by responding to the unanswered posts.
Back2PA
Well-known member
- Joined
- Jul 26, 2015
- Posts
- 5,766
Sounds like a failing converter, that voltage is too high and will cook your new battery
Rene T
Site Team
Is your multimeter dial set on the correct position?
Gary RV_Wizard
Site Team
The other possibility is that the voltage at the shore power outlet is too high. The 7345 will produce DC voltage in roughly proportion to the AC input voltage. Make sure that wasn't a 220/240v outlet!
Lou Schneider
Site Team
- Joined
- Mar 14, 2005
- Posts
- 13,231
Gary RV_Wizard said:
No it won't. The 6300 series converters were not regulated and would produce voltage in proportion to the AC input. The 7345 is an electronically regulated switching converter and will hold a constant output voltage over a fairly wide range of AC input voltages.
18 volts will make 12 volt light bulbs burn very bright. Are your bulbs doing this?
If you are actually seeing 18 volts out of a 7345 converter, it's broken. Parallax bought Magnetek several years ago, I don't know if they service the older units.
If you're electronically inclined, here's a discussion from 2011 where a member was able to repair his 7345 converter. His problem was a capacitor on the circuit board failed and let the 38 KHz switching voltage pass through to the DC output.
http://www.rvforum.net/SMF_forum/index.php?topic=49577.0
nibroc
Well-known member
thanks Lou for that info on the 7345----Merry Christmas
