chevygirlalways
Installed 8/2009 model 0055030--- 14K propane transfer switch/ Was working fine. Regular maintenance , battery change after 3 years. New battery manual start at installation, one week later exercise., next week battery dead. Replaced that with another new battery, same thing. Put old battery in after full charge. Same thing!
What do you think? Thanks so much. This forum is great :) From what I've read it's the battery charger in transfer switch but I can't find the part #
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BrentB
If the battery showed full charge from outside charging source, you more likely have an issue with the start contactor relay, or the start contactor. I've even seen failure to clean the cable connectors when replacing a battery give the same issue. Could also be a bad charger. Serial number gives us better info than model!
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BrentB
If it is truly 2009 charger is on board in controller area! Silverado driver!
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chevygirlalways
Serial #5450217 for generator- transfer switch assembly #0G7931A-serial # 5446297 There is a charger on the transfer switch
My husband also drives a Silverado. He's the one working on this, not me :) Thanks for the help!
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BrentB
If it is the original 0g8023 charger with the oval hump on the front side, pull it out, throw it away, and run! The part number is good for the replacement, but upgraded product! It won't charge a battery; only keeps up with draw from control board! Clean terminal connections during replacement! Still think if you charged the battery from an outside source, unless it started manually you could have a secondary issue. If it start manually after charging outside, yes replace the charger. NO! Don't go to autozone and get a float charger! They are only 1.5 amp hour at best! Get the OEM 2.5 amp hour 0g8023 Generac part! They sell it here @ ziller!
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chevygirlalways
Thank you, the terminals are clean. Will order part from ziller. Thank you for the part #, I'll let you know how this works out. Thank you so much :)
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BrentB
Ps like my jet videos under the topic other stuff!
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Canada_Guy
I think the unit is similar to mine with the laptop type power supply charger in the transfer switch. Either way, have you checked the T1 fuse? Is the charger getting 120 VAC supply input? Have you measured the battery voltage? It should hold at around 13.2 to 13.5 volts while in standby mode.
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BrentB
Once again, if it has the original 0g8023 charger, throw it away!!! Can't say that enough!
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Canada_Guy
He could replace the charger, but if the problem is no supply voltage, the new one won't work either.
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Skip Douglas SkipD
CGA - does your husband have and know how to use a good multimeter to measure voltages, etc.?
Skip Douglas
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chevygirlalways
no, no voltage meter :( He asked, how do you know if the fuse is bad? He also asked, if it is one of 3 fuses in the transferswitch? He's a car guy, this is new to him.
Thanks for your relpy.

.

Susan
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John R
Yes, it's the T-1 fuse, if you don't have a way of checking it, just put in a new one.
keep the old one until you know if it was bad.
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chevygirlalways
There are 3 fuses next to one another with different numbers on them. which one? right,middle or left :confused:
battery charger model # is SDS012-00025P Transferswitch assembly #0G7931A Serial # 5446297
Thank you for helping :)

Susan
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MEC
The fuse holders are all labeled.
There is N1, N2 & T1 and usually labeled as customer connection.
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chevygirlalways
Thank you,:) that would be the one connected to the battery charger, correct.

Susan
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John R
Yes, T1 runs the battery charger.
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