Maintenance; Cleaning The Air Filter; Cleaning The Adb; Servicing The Blower - Dometic FreshJet 3 Series Installation And Operation Manual

Rooftop Air Conditioner (Air Distribution Box, Electronic Controls)
I The interior light is available in Standby mode. The
Interior Light icon illuminates at 50% brightness
to indicate it is an available option.
10 .3 .13 Using the exterior AC light (if
equipped)
I Leaving the exterior AC light on when the RV is in
motion on a public road is against the law in some
jurisdictions and may result in a traffic ticket.
• To turn on the exterior AC light, press and release
the Exterior Light icon. The Exterior Light icon
illuminates steadily at 100% brightness.
• To turn off the exterior light, press and release the
Exterior Light icon. The Exterior Light icon
illuminates steadily at 50% brightness.
10 .3 .14 Changing the temperature unit of
measurement
I The default temperature measurement is
Celsius (C). Changing the temperature
measurement indicator will not affect the current
operation mode.
1. Wait for the LED display to show only the
temperature, then press and hold both sides of the
( + / ) icon for three seconds. The current unit of
–
measurement blinks for five seconds on the LED
display.
2. Press the + or of the ( + /
–
five second blinking window. The new unit of
measurement blinks for five seconds in the LED
display before displaying the room temperature.
3. To change the temperature, press the ( + /
The ( + / ) icon illuminates at 100% brightness
–
during the selection, then remain at 50% brightness
after releasing the button.

11 Maintenance

This section describes routine activities to maintain
properly-working system components.
EN
) icon within the
–
) icon.
–

11 .1 Cleaning the air filter

NOTICE: Never run the unit without the return air
filter in place. Otherwise, dirt will accumulate and may
substantially degrade the performance of the unit over
time.
This section describes how to maintain a clean air filter.
1. Periodically (or a minimum of every two weeks of
operation) remove the return air filter located behind
the return air vent grille and wash it with soap and
warm water.
2. Let the filter dry completely before placing the filter
back into position.

11 .2 Cleaning the ADB

NOTICE: Never use furniture polish or scouring
powders to clean the outside shell of the ADB.
Clean the outside shell of the ADB with a soft cloth
dampened with a mild detergent.

11 .3 Servicing the blower

The blower motor in the rooftop component is factory-
lubricated and requires no service.
Maintenance
25