7
Maintenance
2017 Interstate 9-31
FAQs and Answers
Electrical
1. When I hit my 12-volt remote kill switch, at the
sliding door, it does not turn on the 12-volt
inside.
Answer: There could be two issues here. The rst is
that the batteries are below 8 VDC� If this is the case,
there is not enough power to activate the switch� The
second issue is that the remote is in the disabled
position at the manual knob under the lounge� (Refer to
Section 5 - Interior, for more information�)
2. What should I do to maintain my generator?
Answer: During the initial break in period, you will need
to check your oil every 4 hours during the rst 20 hours
of operation� Once you reach 20 hours of operation,
you will need to change the oil� (Refer to the Onans
Owner’s manual for more information)
3. My generator stalls out or quits running if I turn
a corner.
Answer: Make sure you check the oil level� There is a
sensor built into the generator that will shut the engine
down if it is too low� Turning the corner or stopping
quickly while oil is low can cause this to happen�
4. What size batteries are in my Airstream
Interstate?
Answer: Interstate models have Lifeline GPL-24T
series�
5. My generator will not run properly while I am
showing I have ¼ tank of LPG; however, it runs
ne when tank is showing ½ or more.
Answer: This could be a demand issue� If you are
using other appliances, the outside temperature is
below 32°F, and the BTU output is lower than at 72°F,
the generator will not run properly� This would cause
the generator to stall out or run poorly by not creating
the proper 120 volts of power�
6. What is the battery disconnect switch function?
Answer: The switch is used to cut power when the
Interstate is not being used or put into storage to
preserve battery charge� It disengages or engages
the 12-volt power supply from the house batteries to
everything but the LPG detector, CO detector, tank
heaters, power lounge, and Magnum invertor�
7. Do you recommend using a surge protector
when plugged into shore power?
Answer: Your Airstream is breaker protected� However,
with the use of more personal electronic devices and
the number of motorhome users in parks, added
protection is always a plus�
8. What is my 1000-watt Magnum inverter
powering?
Answer: It is powering both the front and rear TVs and
the Blu-Ray DVD player� There is an additional outlet
behind the driver’s seat as well� This plug is designed
for no more than 1000 watts combined power, and is
intended for charging things such as laptops, phones,
and TV usage� Plugging in items such as vacuums,
hairdryers, etc� may harm the system�
9. I have an alarm going off at my sliding door.
Answer: Make sure your step and awnings are
completely closed� If either of these are not properly
closed, and the engine is running, it will cause the
alarm to sound�
Plumbing
1. Do I need a water regulator?
Answer: No, your Airstream is equipped with a built in
regulator rated for 65 psi�
2. How do I get fresh water into my Interstate?
Answer: You can use the on board fresh water tank
and 12-volt pump for your water supply when camping
in a remote area, or hook to an external water source
via potable water hose to exterior water inlet when
parked at a campground�
3. What is the difference between a Gray Water
tank and the Black Water tank?
Answer: The Gray Water tank holds water from shower
and sink drains� The Black Water tank holds sewer
water from the toilet�
4. Can I run the macerator pump if there is no
water going through it?
Answer: No, it will burn the macerator up if it is run dry
for more the 10-30 seconds� Also, you should not run it
more than 15 minutes continuously�
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