Thetford DC851 Series (Volvo) - Manual (Page 6)

Installation and Owner’s Manual 6
Refrigerator Maintenance Checklist
If you are not going to use the refrigerator for an extended period
of time, put the thermostat to the “OFF” position.
NOTE: Norcold is not responsible for installation, adjustment,
alteration, service, or maintenance performed by
anyone other than a qualified RV dealer or an
authorized Norcold Service Center.
Have a qualified RV dealer or an authorized Norcold Service
Center do these annual safety and maintenance checks:
- Make sure the DC voltage is 10.2 - 30.5 volts.
- The wire connections must be clean, tight and free of
corrosion. If any of these items are not correct:
- A voltage drop to the refrigerator will occur.
- The voltage drop will decrease the cooling perfor-
mance of the refrigerator.
CAUTION: Disconnect the positive (+) DC power supply
wire from the battery before you do a “fast charge” of the
battery. Failure to disconnect the positive (+) power
supply wire from the battery during a “fast charge” can
cause damage to the refrigerator or other 12 volt DC
appliances.
- Make sure the area at the rear of the refrigerator is free of
anything, especially combustible materials, gasoline, and
other flammable vapors and liquids.
If the refrigerator does not cool correctly:
- Make sure the power switch / thermostat is not in the OFF
position.
- Make sure that the refrigerator is correctly installed and that
the vents are not blocked.
- Make sure that the power source to the refrigerator is
serviceable.
- Make sure that the fuse or circuit breaker is intact (See
“Over current protection system” section).
- Make sure that the ambient temperature is not unusually
high (more than 110° F. / 43° C.) (See “Over heating shut-off
device operation” section).
- Make sure that the door is closed.
- If the weather is hot, make sure that the door is sealing
correctly.
- Make sure that the air circulation inside the refrigerator is
not decreased by foods or by shelves that are covered with
plastic, paper, etc.
- Make sure that hot foods were not placed in the fresh food
compartment of the refrigerator.
- Make sure that the freezer is defrosted.
After you make these checks, if the refrigerator does not
operate, contact your dealer or an authorized Norcold Service
Center.
Over heating shut-off device operation:
Operating the refrigerator in high ambient temperatures can over
heat the cooling unit and cause premature failure of the compres-
sor. (See the label inside the refrigerator.)
To protect the cooling unit from over heating, the refrigerator will
automatically shut-off when the vehicle air temperature is higher
than 110° F. If shut off occurs, an audible alarm tone (an intermit-
tent beeping) operates from the refrigerator.
To stop the audible alarm tone and restart the refrigerator, turn the
thermostat counterclockwise to the “OFF” position and then clock-
wise to the desired thermostat position.
The refrigerator will not restart until the air temperature is lower
than 110° F.
Troubleshooting
- Dry with a clean cloth.
- Put all food into the refrigerator.
Door sealing:
If the door does not seal correctly, excess frost will collect inside
the refrigerator. Make sure the door seals correctly:
- Close the door on a piece of paper that is about the size of
a dollar bill (See Art00980).
- Gently pull the paper.
- You should feel a slight drag between the gasket and
the cabinet.
- Do this on all four sides of the door.
- If you do not feel a slight drag on the
paper, the door is not sealing correctly.
- Have your dealer or an authorized Norcold Service
Center correct the seal of the door