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Old 02-23-2015, 08:16 PM   #1
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AC won't run on generator?

Searching but not finding the answer so I thought I would post it for the really smart people on this site.

My AC works fine on shore power and my camper is only a year old. I installed an Onan 4000 generator. It seems to work fine. I also have a progressive industries surge suppressor. When the generator is running the PI remote display has good readings. The fridge, microwave, etc. all work. But not the AC. When I turn that on with only generator power, the camper's display flashes really fast. it looks like an E and the number 13.

Any hints on what could be wrong or what to look for would be greatly appreciated.
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Old 02-23-2015, 08:21 PM   #2
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Probably have two many items running. Try it with Ac only. What size Ac do you have? Sounds like to much running for the genny to handle
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Old 02-23-2015, 09:02 PM   #3
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Try running frig , water heater on gas. When you want to use microwave tune off AC when your finished with microwave turn AC back on. Most people don't think about the water heater using lots of amps. Hope this helps. Wish it was warm enough here in Ohio to use AC.
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Old 02-23-2015, 09:08 PM   #4
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No code 13

Error Code Chart

E-0 Normal Condition

E-1 Reverse Polarity Condition (hot and neutral wires reversed)

E-2 Open Ground

E-3 Line 1 Voltage High (Line voltage above 132)

E-4 Line 1 Voltage Low (Line voltage below 104 volts)

E-5 Line 2 Voltage High (Line voltage above 132)

E-6 Line 2 Voltage Low (Line voltage below 104 volts)

E-7 Line Frequency High (Line frequency above 69 cycles

per second)

E-8 Line Frequency Low (Line frequency below 51 cycles

per second)

E-9 Data Link Down

E-10 Replace Surge Protector Module
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Old 02-23-2015, 09:16 PM   #5
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Tossing a few brain cells out. I can't see why the 4k gen wouldn't pump out enough. The only thing I can think of is maybe a ground difference. Maybe a chassis wire run to the chassis of the gen?
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Old 02-23-2015, 09:24 PM   #6
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TURBS good stuff you posted. Could you pull out your appliance amp chart please...
Now that I think about it Lowbubba had a problem with his surge protector when on generator. He called them for support. Told him to check a few things then had to send his back for repair. Not saying op has a bad one just adding something else to check
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Old 02-23-2015, 09:26 PM   #7
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Wattage % Volts = Amps
Amps X Volts = Wattage

One other thing to keep in mind is many RV appliances require more amps to start the appliance than they do to run the appliance. A roof air conditioner can draw 16 amps to start, but may only use 13 amps once it is running.

120 Volt AC Amp Ratings
Appliance or Electronic Equipment Estimated Amps
Air Conditioner (X number of A/C) 12-16 Amps
Blender 5-6 Amps
Coffee Maker 5-8 Amps
Compact Disc Player 1 Amp
Computer (Laptop) 2-3 Amps
Converter 1-8 Amps
Crock Pot 1-2 Amps
Curling Iron <1 Amp
Drill 2-6 Amps
Electric Blanket 0.5-1.5 Amps
Electric Fan 1 Amp
Electric Water Heater 9-13 Amps
Electric Skillet 6-12 Amps
Hair Dryer 5-12 Amps
Iron 5-10 Amps
Light (60 watt % 120V) <1 Amp
Microwave 8-13 Amps
Microwave (Convection Oven) 13 Amps
Refrigerator in AC mode 5-8 Amps
Space Heater 8-13 Amps
Television 1.5-4 Amps
Toaster 7-10 Amps
Vacuum (handheld) 2-6 Amps
VCR 1-2 Amps
Washer/Dryer 14-16Amps

12 Volt DC Amp Ratings
Appliance or Accessory Estimated Amps
Aisle Light 1 Amp
CO Detector 1 Amp
Fluorescent Light 1-2 Amps
Furnace 10-12 Amps
LP Gas Leak Detector 0.5 Amp
Overhead lights (Per Bulb) 1 Amp
Porch Light 1 Amp
Power Roof Vent 1.5 Amps
Radio/Stereo 4 Amps
Range Hood (Fan & Light) 2-3 Amps
Refrigerator (LP Gas Mode) 1.5- 2 Amps
Security System 1 Amp
Television (12 volt) 4-5 Amps
TV Antenna Booster <1 Amp
TV Antenna Booster 12 Volt outlet Up to 8 Amps
Variable Speed Ceiling / Vent Fan 4 Amps
VCR Recorder / Player 2 Amps
Water Pump 4 Amp
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Old 02-23-2015, 09:31 PM   #8
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Dang that was fast. hope your staying warm. Dave961 is this a new problem or the first time for using the generator.
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Old 02-23-2015, 09:32 PM   #9
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Quote:
Originally Posted by DougP47 View Post
Dang that was fast. hope your staying warm. Dave961 is this a new problem or the first time for using the generator.
No problem !


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Old 02-24-2015, 07:51 AM   #10
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Try this, turn everything off, bypass the surge suppressor, light the a/c and see what happens. That will get you closer to the components and their operational limits, when in concert with each other. Just sayin'
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