Inverter help...blew 2 fuses

"His link is to a APS750, rated at 20A of DC charge. But if the old converter is also providing a charge you could blow those."



I disconnected the convertor.

BFL13 wrote:
Your transfer switch is between generator and shore power and you went to gen but the inverter is still whole house and it can't take the air conditioner?

I don't have a transfer switch. Its an inverter/charger.

Yes, the inverter is whole house and the generator was on to turn on A/C it blew the fuses.

wa8yxm wrote:
You said it blew two 30 amp fuses.... I'm going to take a serious good guess here.

30+30 = 60 and that inverter is likely capable of dang near twice that when it comes to charge current on the batteries... My guess is that you need to make some adjustments in the inverter's command panel.. OR, you need to re-think the wiring.

How my rig is wired

House, including PDI 9180 with wizard---breaker---switch---batteries--fuse--inverter/converter

That fuse, is like 200 (or 300) amps for the inverter I have. (Forget without checking) my inverter can put out 100 amps DC or suck over 200.

I'll check the inverter switches again...but I basically set it to what the manual suggest for my application.

In terms of my wiring, I installed the inverter inside the power center where all the fuses and connections are. I disconnected the convertor. I plugged the + and - cables of the inverter to where the convertor used to go. Then discounted the main ac cable from the fuse panel and connected that to the input of the invertor. Then I connect the output of the inverter back into the fuse panel.

wa8yxm wrote:

30+30 = 60 and that inverter is likely capable of dang near twice that when it comes to charge current on the batteries... My guess is that you need to make some adjustments in the inverter's command panel.. OR, you need to re-think the wiring.

His link is to a APS750, rated at 20A of DC charge. But if the old converter is also providing a charge you could blow those.

Your transfer switch is between generator and shore power and you went to gen but the inverter is still whole house and it can't take the air conditioner?

Yes, the fridge works on battery but I turn that off and leave it on gas only so it won't drain the battery. The microwave is on (clock is displayed) but I don't run that unless the gen is on. The A/C actually ran for a few minutes, then I went outside for a while and when I went back in everything was off....

You said it blew two 30 amp fuses.... I'm going to take a serious good guess here.

30+30 = 60 and that inverter is likely capable of dang near twice that when it comes to charge current on the batteries... My guess is that you need to make some adjustments in the inverter's command panel.. OR, you need to re-think the wiring.

How my rig is wired

House, including PDI 9180 with wizard---breaker---switch---batteries--fuse--inverter/converter

That fuse, is like 200 (or 300) amps for the inverter I have. (Forget without checking) my inverter can put out 100 amps DC or suck over 200.

How about your fridge? Is it working correctly on battery power? i"m wondering if you don't have the battery leads connected with reversse polarity. It SHOULD be negative ground and negative wire is the white wire. If you hook it up backward LOTS of things don't care (lights, fans, slide room, heating devices) but other items require correct grounding. There are two fuses that are DESIGNED to blow if hooked up backward to protect these items. Just something to check and the GOOD news is that is it's backwards, nothing will be harmed once the fuses are installed AND grounding is corrected.
Good luck / Skip