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Old 09-23-2018, 02:50 PM   #1
raybo
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converter fan keeps running

Hey Guys , i have a strange situation where the fan on my converter is continually running even when I do not have the 120VAC coming in via my genny. This normally would not be an issue except I wont be there for the next 2 weeks and my batteries will only be maintained by a 40W solar panel. couldnt find this issue in previous threads. Am I missing something obvious? Thx
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Old 09-23-2018, 04:43 PM   #2
roadglide
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Poor week batteries
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Old 09-23-2018, 06:41 PM   #3
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Quote:
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Poor week batteries
^^^^^ what he said
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Old 09-24-2018, 08:37 AM   #4
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I maybe wrong but I think the converter fan should only be running if the unit is plugged into 120 vac and the battery is charging or some other 12 vdc load is causing the converter to heat up enough to call for cooling.
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Old 09-24-2018, 09:57 AM   #5
sourdough
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I maybe wrong but I think the converter fan should only be running if the unit is plugged into 120 vac and the battery is charging or some other 12 vdc load is causing the converter to heat up enough to call for cooling.

^^^^Are you sure it is the converter fan? I'm pretty sure it doesn't run unless you have 120vac connected and you said it was disconnected? The fan doesn't run off the batteries as far as I know so something else seems to be going on. Now IF you are plugged in to a source of AC power and the fan continually runs when you have no DC appliances on then you need to check your batteries.
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Old 09-24-2018, 10:39 AM   #6
flybouy
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^^^^Are you sure it is the converter fan? I'm pretty sure it doesn't run unless you have 120vac connected and you said it was disconnected? The fan doesn't run off the batteries as far as I know so something else seems to be going on. Now IF you are plugged in to a source of AC power and the fan continually runs when you have no DC appliances on then you need to check your batteries.
X2 on sourdough's comments. If your connected to shore power (doesn't matter if plugged into pedestal or generator) and the fan is running with nothing running continuously then you have a battery issue. Some clarification would help us help you.
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Old 09-24-2018, 03:28 PM   #7
MattE303
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It could be the converter, mine went bad and the 2 symptoms were inconsistent, incomplete battery charging, and fans running continuously when no shore power and no 12v draw. WFCO replaced it on warranty and the new one is working fine so far, fans only run when they should and batteries get a good charge (same batteries).
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Old 09-25-2018, 02:14 AM   #8
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I crave to have someone sharper than me (easy on the comments) explain to me how the fan in the converter can continue to run when shore power has been terminated. Is it possible that the cooling fan is 12 volt and continues to operate until the unit reaches the appropriate temperature using 12 volts coming BACK from the original source, the RV batteries?
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Old 09-25-2018, 03:12 AM   #9
flybouy
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If the fan is 12vdc it should not run unless the unit is providing 12vdc and sufficient heat builds up to trigger the thermistor or whatever device is used to activate the fan.
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Old 09-26-2018, 09:01 AM   #10
raybo
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that is my thinking also...I guess I have to assume that as Matt said it is FUBAR and spring for a new unit
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