eyeball Posted January 29, 2022 Share Posted January 29, 2022 2006hr endeavor 40pdq. I drove from Toledo to Georgia with inverter on and my house batteries were dead. I thought they should charge while driving Link to comment Share on other sites More sharing options...
Ivylog Posted January 30, 2022 Share Posted January 30, 2022 Do you have a metal box (cover comes off) in the engine compartment? Is there a large solenoid labeled BigBoy? Link to comment Share on other sites More sharing options...
Steve P Posted January 30, 2022 Share Posted January 30, 2022 Do you have a BIRD? It may be the relay in that circuit... there are lots of BIRD threads that will explain. Link to comment Share on other sites More sharing options...
96 EVO Posted January 30, 2022 Share Posted January 30, 2022 Your '06 coach should have come with an IRD, and yes, your engine alternator should have topped up your house batteries while traveling. Link to comment Share on other sites More sharing options...
Steven P Posted February 5, 2022 Share Posted February 5, 2022 I've had 2 separate issues where my house batteries didn't charge. Most recently was the trombetta failed. Luckily I already had a replacement for it. First was the IRD failed and also never saw enough voltage to open to send the signal to charge the house batts. Took a little troubleshooting on that and bypassed the 12V source for higher voltage and all working properly again. Link to comment Share on other sites More sharing options...
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