Airstream INTERNATIONAL TRAILER Owner's Manual page 114

AIRSTREAM INTERNATIONAL TRAILER OWNERS MANUAL
d. The fresh water (water supply) tank is shown next. The LED next to "FRESH" will light up and the
fresh water level will be shown for 2.5 seconds, for example, "I 00" indicates that the fresh water tank is
completely full.
e. Finally, the LPG level is shown if the RV is equipped with an electrical LPG sender. The LED next to
"LP GAS" will light up and the LP gas level will be shown for 2.5 seconds, for example, "52" indicates
that the tank is 52% full. Note that this reading is only as accurate as the LP sender, and is subject to how
well the adjustment was set. The display will read in 2% increments. Note that the maximum reading may
be 80% or 100%, depending on how the system was calibrated (LP tanks can only be filled to 80% of total
capacity to allow for expansion).
f. After the LP gas level is shown, the system shuts itself off. Pressing the button again will restart the
cycle.
If a sender is not connected, the display will show "OPn" when that tank is to be shown, indicating an
open circuit. For example, if no LP gas sender is available, then the display will show "OPn" when the
"LP GAS" LED is on. However, if the display shows "OPn" on any of the tank levels when a sender is
connected, then there is an open circuit in the wiring, such as a broken or disconnected wire. If the display
shows "Sht" then there is a short circuit in the wiring. If the display shows "Err" then try the system
again, the error could have been caused by a momentary electrical system glitch. If the display continues to
show or "Err" then the sender or it's wiring is likely damaged.
To continuously monitor one tank level:
1. Note that only the holding tanks can be continuously monitored with this procedure, not the voltage or
the LP Gas level.
2. Press the button and release it, the display will power up and show the following:
a. The battery voltage is shown for 2.5 seconds. Wait until the display cycles through to the tank that
you want to monitor, for example, if you are filling the fresh water tank and want to watch the level rise,
wait until the LED next to "FRESH" lights up.
b. During the time that the desired tank is displayed, press the button, while it is held down you will see
"hld" indicating that the display will hold on that tank. When the button is released the display will show
the level of that tank continuously.
c. If you hold the button down longer than about 8 seconds the display will shut itself off. This prevents
accidental battery discharge in an unattended RV if the button were to short out.
d. The display will shut off after about 2 ¼ minutes of continuous monitoring of one tank. It does this
for two reasons, one is so that the battery will not be run down by forgetting to turn the display off, and the
other is that the senders convert to advanced diagnostic mode after 2 ¼ minutes to allow detailed analysis
of sender behavior.
e. If you want to monitor one tank longer than 2 ¼ minutes, simply start again at step 2 to give another 2
¼ minutes of monitoring.
f. If you are finished monitoring a tank before the 2 ¼ minute timeout, and want to see the remaining
tank levels, then press the button again. While it is held down "Scn" is shown indicating that the display
will resume scanning through the rest of the tanks. When the button is released the display will go to the
next tank. If you hold the button down longer than about 8 seconds the display will shut itself off.
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