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EN
Installation Issues
Americana and New Generation Refrigerators
Operational Issue
Potential
Issue
The check indicator lamp is on. (Americana
models only)
E1 is displayed. (New Generation models
only)
The left thermostat range setting light is
flashing. (First generation DMR702 and
DMR702-D models only)
Altitude
E0 or E1 is displayed. (New Generation
models only)
The left or three thermostat range setting
lights are flashing. (First generation
DMR702 and DMR702-D models only)
RF
Interference
7.1 Power Issues
The following checks should be made using the battery,
converter, or generator, where applicable. Do not
use a test light, as it does not provide enough useful
information for a proper diagnosis.
Use a digital multi-meter to take voltage readings. Check
that the DC power to the refrigerator is between 10.5–
18
VDC during operation, testing with the interior lights
both on and off.
I
A check light will occur when voltage is less than
9.6
VDC. (Americana models only.)
Check that the AC power to the refrigerator is between
103.5–126.5
VAC for electric operation (Auto mode),
testing with the interior lights both on and off.
Use a multi-meter to take AC voltage readings at the DC
terminal block connections while the converter is under
a load. Check that the AC ripple is 2
VAC or lower. If the
reading is higher, the power issue originates with the
converter.
I
The control modules can function with up to 6
VAC
of AC ripple, however anything above 2
VAC can
cause communication issues.
7.2 Gas Pressure Issues
Check that the gas pressure is between
10.5–11.5 in. W.C., ideally as close to 11
in.
W.C. (at
the refrigerator) as possible. Perform the check with
a minimum of 50% (ideally 100%) of other gas-fired
appliances operating while the refrigerator is in
operation. The pressure should be tested using a U-tube
manometer. If using a digital-type manometer, calibrate it
often with a U-tube manometer.
Check the outside air temperature. As the air gets
colder, it reduces the capacity of the liquid propane (LP)
tank and the gas pressure is affected by a combination of
the fill level of the LP tanks and the ambient temperature
outside.
To raise the tank temperature and increase the capacity
of the tank:
1. Place an insulated, fire-resistant blanket over the
tanks.
2. Place an illuminated 75
W light bulb under the
blanket.
The temperature of the bottle should rise 10–20°F
[(-12)–(-7)°C] over a brief period of time, which increases
tank capacity.
For older RVs, it may be necessary to supply gas directly
to the refrigerator from a regulated shop tank in order to
bypass any issues related to blocked gas lines from the
RV.
7.3 Installation Issues
Specific clearances are required during the installation
of the refrigerator. Check the installation manual for the
refrigerator to find the proper dimensions, and ensure
that the existing installation location complies with the
requirements. In addition, check for these potential
installation issues:
• Fan(s): when installing the refrigerator with two side
wall vents (typically slide-out room installations),
a ventilator fan must be installed at the rear of the
refrigerator to assist with airflow.
• Leveling: the refrigerator should be set at 3° from
left to right and 6° from front to back. Level the
refrigerator within this tolerance setting.
