Dometic NDA1402 - Refrigerator Owner Maintenance Yearly Record

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LP GAS REQUIREMENTS
The LP gas pressure to the refrigerator should be 11 inch-
es water column with half of all BTU’s of the RV turned
on. With all other appliances off, the pressure to the re-
frigerator should not exceed 12 inches water column. To
check the gas pressure when the refrigerator is operating,
there is a pressure test port below the solenoid valve as-
sembly. Use a calibrated manometer to check for proper
gas pressure.
LP GAS COMPONENTS
7.1 Manual Gas Shutoff Valve
The manual shutoff valve is a non-serviceable part. The
valve is part of the solenoid valve assembly. It is very rare
to have problems with the manual shutoff or the solenoid
assemblies. If you have checked gas pressure and it’s
low, check the pressure at the input line to the refer. If the
pressure is 11 inches at the input and low at the pressure
test port, change the solenoid valve assembly. The valve
in not opening all the way.
7.2 Orice
The Dometic orice is a brass alloy with a man-made ruby
pressed in the center that has been laser-beam drilled in
a spiral pattern. The orice is cleaned by using an alco-
hol based solvent. Soak the orice for approximately 1
hour and allow to air dry. DO NOT insert anything into
the center of the orice as it can damage the man-made
ruby. DO NOT use an air nozzle to blow thru the orice as
the ruby could be moved or damaged. Never over or un-
der size the orice on a Dometic refrigerator. The cooling
unit is designed to work with a predetermined amount of
heat and modifying the orice size will decrease cooling.
If there is a lack of cooling on gas operation, verify the
orice is the proper size per the chart.
Model Jet Size
NDA 1402 #76
NDE 1402 Not Used (All Electric)
Always check the parts list with the model and product
number to assure the right jet size.
Start the refrigerator according to the instructions,
•
and switch to the GAS mode.
Check that the gas ame is lit and the GAS mode •
indicator lamp is on.
Close the manual gas shutoff valve at the back of •
the refrigerator.
Wait for six to seven minutes. The “chLP” indi-•
cator should be on and the GAS mode indicator
lamp should be off.
Remove the protection cover from burner and •
open the manual gas shutoff valve. Do not change
any button positions on the control panel. Apply a
non-corrosive commercial bubble solution to the
burner jet orice.
No bubbles should appear at the opening of the
•
burner jet orice. The presence of bubbles indi-
cates a defective gas safety shutoff, and service
is required.
If no bubbles were present at the burner jet ori-•
ce, it should be rinsed with fresh water. Be care-
ful not to damage the burner jet orice. Replace
the cover and press the main power ON/OFF
button “OFF” and back “ON”. Normal operation
of the burner should return. Allow the burner to
operate for a minimum of ve minutes.
DO NOT use a wire or pin when cleaning the burner
jet as damage can occur to the precision opening.
This can cause damage to the refrigerator or create
a re hazard.
SECTION 6
SECTION 7
The gas safety shutoff must be tested after the refrigera-
tor is connected to the LP gas supply.
To test the gas safety shutoff, proceed as follows:
TESTING LP GAS SAFETY SHUTOFF
DO NOT use a ame to check for gas leaks.
LP GAS