A/C on generator question
I'm new to the forum and, well, fairly new to the RV world but hope someone can help me understand something. (And I've done a good bit of research via Google, but still haven't found a straight answe...
Forum Discussion
Gjac - No, I'm just talking about on generator issues.
It's a 2006 Thor Hurricane 33H. It does not appear that I have an inverter. (The manual describes the appearance and location of a remote switch for it, which I don't have. And it's my understanding an inverter would be close to the coach batteries, and I don't see anything that looks like an inverter. Apparently this was an option on the Thor.)
The only other thing I know of that is on is the fridge. I've verified that the water heater is not on, and water pump is not on.
I'll try running the rear AC for a while to see if it trips the CB. Thanks again for all your help.
dougrainer wrote:
They both stopped working (also NO 120 power to the RV) because in your system, the 120 volt transfer box has 2 120 inputs from the Genset. BOTH Inputs must have 120 power to close the switch and power the RV. I still think you have a defective AC. probably the rear AC if you state you can run 1 AC and I assume that is the front one. Kill the AC that is running fine. Turn the other AC ON and see if it will run more than your 45 minutes to an Hour without tripping the breaker. Also, we need to know year/Brand/Model of RV. Do you have an Inverter/Charger? If so, that may be your problem. Years ago when they installed 5.5 or 6.5 Onan Gensets, they wired the Rear AC and the Inverter/Charger on the 2nd leg of the Genset. 6.5 onans had 2-30 amp breakers. 5.5 have the 30 and the 20. When the Power(120) is first applied to the RV, The Inverter/Charger goes into BULK charge mode and if the Internal charge rate has not been changed from the Inverter maker settings, THAT 12 volt charge rate will pull up to 10 amps. That means if you have the rear AC running and since you just started the Genset, that 20 amp breaker will have the rear AC(11 to 14 amps) PLUS the Inverter/charger at 10 amps which will be OVER the 20 amp threshold of the Onan breaker and will trip. When IT trips, the 120 Transfer kicks out. Also, If you do NOT have an Inverter/Charger, there may be some other hi amp appliances pulling current on that leg going over the 20 amp threshold. If you have the Inverter/Charger, the fix is to reset its bulk charge rate to a lower amp draw around 3 to 5 amps(AC amps not DC amps). Doug
It's a 2006 Thor Hurricane 33H. It does not appear that I have an inverter. (The manual describes the appearance and location of a remote switch for it, which I don't have. And it's my understanding an inverter would be close to the coach batteries, and I don't see anything that looks like an inverter. Apparently this was an option on the Thor.)
The only other thing I know of that is on is the fridge. I've verified that the water heater is not on, and water pump is not on.
I'll try running the rear AC for a while to see if it trips the CB. Thanks again for all your help.
