Troubleshooting guide

57
Q: Why does a breaker trip and the rear air conditioner not
work when I turn it on while the generator is running?
A: RVs with two air conditioners typically have a 20-amp circuit breaker for the
rear air conditioner and a 30-amp breaker for all other loads (including the
front air conditioner). The RV may be wired with the two circuits reversed,
causing the breaker to trip. The generator connections and wiring should
be checked by an authorized service location.
Q: Is generator power clean enough to run a computer?
A: Yes, with Onan
®
and Camp Power
™
generators this is no problem. The set
should be turned on and warmed up before turning on the computer. The
normal precautions for home use should be followed for RV use as well.
Q: Can I operate an air conditioner and microwave at the
same time?
A: Although this is possible in lower temperatures or altitudes or with high
efficiency AC’s, Onan and Camp Power 2500 and 2800 watt generators
will probably be overloaded when the AC cycles off and on with the
microwave running. Load shedding devices are available that automatically
turn off the AC when the microwave starts and then restarts it when power
is available again. All other Onan and Camp Power generators can
operate both of these appliances at the same time.
Q: Will high efficiency (power saver) air conditioners provide
more reserve power?
A: YES. High efficiency AC’s use 30% less power and are easier to start. That
means more power is available for use in the RV or for better fuel economy.
High efficiency AC’s also have higher cooling output than comparable
standard AC’s.
Q: What happens if I “short-cycle” my air conditioner?
A: Short cycling refers to stopping and restarting the air conditioner
compressor before the refrigerant pressure has enough time to equalize.
If this happens, one of several things can occur: a circuit breaker may trip,
either on the generator or at the breaker panel; the generator engine may
stall; the AC compressor may trip its overload. AC compressors should
remain off for at least 3 minutes before being restarted.
Q: Will increasing the speed (accelerating the RPM) on my
generator provide more power potential?
A: No, and it may damage your generator and appliances.
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VII: FREQUENTLY ASKED QUESTIONS
Q: Can a generator charge my RV house battery?
A: Not directly. But a generator does provide power to operate your
converter/charger, which charges batteries. Many diesel generators
also have an alternator, which can charge batteries.
Q: Is it practical to power the roof air conditioner with my
generator while traveling on the road?
A: Yes, that is what a generator is for, portable electrical power. In fact, it can
help you economize on your vehicle fuel because the generator uses less
fuel. Plus, it gives you an opportunity to exercise your generator. Any
appliance that can be run in a stationary position can also be powered
while driving.
Q: Can I run my generator for extra power while I’m hooked
up to shore power at a campground?
A: Only if the RV manufacturer has supplied a separate circuit for a second
air conditioner. However, in most RVs with two air conditioners, only one
will operate while plugged into commercial shore power. By the NFPA
code you cannot connect both power sources, generator power and
commercial shore power, together. RV electrical systems are designed to
separate these two power sources. However, with your comfort and needs
in mind, your RV manufacturer may have wired the RV to allow you to
power your second air conditioner with your RV generator. Check your
vehicle’s operator manual.