A/C not working on generator
I recently had my 1996 Onan generator replaced and now neither of my A/Cs will work when I exercise my gen. I do have 120 volt power throughout my coach otherwise when it runs. I called the Cummins de...
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My 2013 coach with Onan quiet diesel is set up with most of the coach on one circuit that can also be supplied by the inverter. Everything that they don't want running on the inverter (AC units, block heat, electric water heat and battery charger) comes off another circuit. The generator supports this. While on the outside of the genset there is only one breaker labeled 50amps according to the wiring diagram the genset actually has two 35amp circuits in parallel. I believe that this is true because I noticed that there are 5 wires coming off the AC contact block. It seems that both circuits are in phase running parallel but are separated for load management. Since they are in phase and not running 230V some automatic switches may not work correctly. Try your block heater and water heater. If they are not working either you are probably onto the problem. You may want to turn you breaker on the genset off then back on to see if one side was tripped.
I have had issues with being able to start both AC's at the same time with the auto start function and I believe now that it is due to them only being on a 35 amp circuit. Also, the battery charger starts first and is already drawing up to 10 of those amps.
I have had issues with being able to start both AC's at the same time with the auto start function and I believe now that it is due to them only being on a 35 amp circuit. Also, the battery charger starts first and is already drawing up to 10 of those amps.
