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Old 06-07-2011, 09:57 PM   #1
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DC Converter

Hi All,

My Parrallax 7155 DC converter was blown during a power surge and I replaced it. I hooked up the AC power to test and noticed that the unit fans started to run after a few minutes and seem to run contionously till the batteries started to boil. I disconnnected the AC and shut the breaker off on the converter as I was worried.

Is the converter supposed to boil the batteries?


Thanks,
Al
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Old 06-07-2011, 09:57 PM   #2
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No Al, something is wrong.
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Old 06-07-2011, 11:20 PM   #3
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I noted that you did the replacement. I would first remove power and check my work. My first suspicion is a mis-wired connection that is shorting out the battery.
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Old 06-08-2011, 11:03 AM   #4
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Originally Posted by herk7769
I noted that you did the replacement. I would first remove power and check my work. My first suspicion is a mis-wired connection that is shorting out the battery.
Hi,
I double checked my wiring to the converter and even took pictures before disconnecting and compared everything is hooked up as it was originally. There's no 12 Vdc fuses blown and the fuse between the battery and converter is ok.

Thanks,
Al
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Old 06-08-2011, 11:12 AM   #5
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Did you check the voltage going to the batteries. Maybe you have a bad regulater?
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Old 06-08-2011, 11:15 AM   #6
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Originally Posted by NorminN.B.
Did you check the voltage going to the batteries. Maybe you have a bad regulater?
Isn't the regulator part of the converter?

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Al
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Old 06-08-2011, 11:20 AM   #7
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I would check the voltage going to the batteries first. Should be around 14.5 volts. If it is too high, the regulater on the converter is bad, making the battery boil. Hope this helps.
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Old 06-08-2011, 11:24 AM   #8
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what voltage do u show on the battery with all (shore power) disconnected. what voltage do u show on the bat with shore power on?
my old standby response is to check and see if the battery is bad.
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Old 06-08-2011, 01:09 PM   #9
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what voltage do u show on the battery with all (shore power) disconnected. what voltage do u show on the bat with shore power on?
my old standby response is to check and see if the battery is bad.
Hi,
New deep cycle I had it checked as that was my first thought 12.23 Vdc
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Old 06-08-2011, 02:38 PM   #10
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There should be a troubleshooting guide in your converter manual.
I would start there and a call to the Tech Support line for your converter.
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