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07-01-2023, 12:08 AM
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#15
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Senior Member
Gulf Streamers Club Ford Super Duty Owner
Join Date: Aug 2015
Location: Memphis, TN
Posts: 4,810
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Easiest= Hook up a battery and re-test and see if voltages goto proper range? But it happen... had a simple (120vac primary) 12vdc power supply for antenna that when tested was defective at 24vdc.
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(TerryH.) 2000-GS Conquest Limited 6266 Class-C 99-E450SD V10
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07-01-2023, 09:32 PM
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#16
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Senior Member
Join Date: Aug 2001
Location: North America somewhere
Posts: 32,253
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Quote:
Originally Posted by Skip426
First things first ; can you take your multimeter to your car and run tests on voltage , at the battery , and look for ; 12.5 >12.7 volts then with the engine running 14.0 >14.3 volts.
To confirm proper meter operation .
Note : Digital multimeters I've had will give weird readings if their internal battery is weak.
Then back to the coach , if you have any solar device disconnect it , and go to the converter output terminals and test voltage there . Maximum output from the converter should be 14.2 volts.
Let us know what you find.
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 good advice! Don't assume test equipment is correct, verify first.
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2000 Winnebago Ultimate Freedom USQ40JD , ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG 11B5MX,Infantry retired;GS Life member,FMCA " My fellow Americans, ask not what your country can do for you, ask what you can do for your country. John F. Kennedy
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07-02-2023, 06:21 PM
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#17
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Junior Member
Join Date: Sep 2021
Posts: 13
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Quote:
Originally Posted by THenne1713
Easiest= Hook up a battery and re-test and see if voltages goto proper range? But it happen... had a simple (120vac primary) 12vdc power supply for antenna that when tested was defective at 24vdc.
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You recommend hooking up a 12v battery to a 70v supply to see if the voltage goes back to proper range? Im not even going to respond to this other than to say Please do not give advice to anyone else until you know why that is a horrible idea.
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07-03-2023, 09:37 PM
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#18
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Senior Member
Gulf Streamers Club Ford Super Duty Owner
Join Date: Aug 2015
Location: Memphis, TN
Posts: 4,810
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Quote:
Originally Posted by Mdilliplane
You recommend hooking up a 12v battery to a 70v supply to see if the voltage goes back to proper range? Im not even going to respond to this other than to say Please do not give advice to anyone else until you know why that is a horrible idea.
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or 21v with NO BATTERY? I had a ACV READING at my battery of 30-40vac A FEW YEARS AGO when I first bought rig; thinking "bad capacitors", I later found none in circuit and later readings with new battery showed <1-vac... Can I explain? =Nope, I often say "if we only understood everything we thought we knew". I have several years electronics education and several years experience in a wide variety of fields and ac/dc/ aircraft and hospital systems for 5vdc to 4kv. Have also seen results of 8D CAT battery explosion, so Understand your concern, hope you can understand my skepticism of readings?
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(TerryH.) 2000-GS Conquest Limited 6266 Class-C 99-E450SD V10
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07-03-2023, 11:12 PM
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#19
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Senior Member
Gulf Streamers Club Ford Super Duty Owner
Join Date: Aug 2015
Location: Memphis, TN
Posts: 4,810
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SKIP426 also has VALID CONCERN, WHAT is ACV READING AT WALL OUTLET? I have seen a lost neutral at pole transformer give 160vac and 80-vac on a house, and read of RVs experiencing similar
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(TerryH.) 2000-GS Conquest Limited 6266 Class-C 99-E450SD V10
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