Dc Mode Of Operation - Norcold 600 Repair Manual

DC Mode of Operation

Answer these questions before
calling Norcold's Technical Serv-
ice Number.
1. Remember: this mode of op-
eration is not designed to cool
the refrigerator.
2. Do you have 12 Volts DC
power to terminals J3(-) and
J4(+ )?
3. Is the 3 amp fuse (located un-
der the Power Supply board
cover) good?
4. Do you have 12 Volts DC to
the 20 amp fuse?
5. Did you check for loose wire
connections?
6. Are the modular connectors
on the wire harness (cable)
plugged into the Power Sup-
ply board and the Eyebrow
board?
7. Is the Mode Selector set to the
DC mode of operation?
8. Is Humidity/Storage switch,
located on the
panel, in the NORMAL (ON)
position or HIGH HUMIDITY
(ON) position?
Step By Step Trouble-
Shooting Guide DC Mode
1. With a volt-ohm-meter set to
measure 12 volts DC check
the input supply to the Power
Supply terminals J3(-) and
J4(+ ) as shown in Figure
11.51. If you do not have 12
volts DC repair the source.
2. Remove all the wires that are
connected to the terminals on
the right side of the Power
Supply.
WARNING
USE EXTREME CAUTION WHEN
REPLACING ANY DC ELECTRI-
CAL COMPONENTS. CAUTION
MUST BE TAKEN WHEN DISCON-
NECTING THE DC SUPPLY. THE
DC SUPPLY IS CLOSE TO THE
PROPANE GAS WHICH SUPPLIES
Figure 11.51
THE REFRIGERATOR. ARCING CAN EXIST WHEN DISCONNECTING THE
DC SUPPLY WHICH CAN IGNITE A LEAK IN THE PROPANE SUPPLY LINE.
RESULTS CAN BE SEVERE PERSONAL INJURY OR DEATH.
3. Remove the Power Supply cover to gain access to the Power Supply.
4. Reconnect the DC supply to terminals J3(-) and J4(+ ) on the Power
Supply.
Eyebrow
Figure 11.52
5. With the volt-ohm-meter set to measure + 12 volts DC, check for 12
volts through the fuse as shown by Figure 11.52. If you do not have 12
volts, replace the 3 amp fuse.
NEVER OVERFUSE A CIRCUIT. REPLACE BLOWN FUSE WITH EXACT RE-
PLACEMENT INDICATED BY NORCOLD. OVERFUSING OF A CIRCUIT
CAN RESULT IN A FIRE.
6. Check that the Humidity/Storage switch located on the Eyebrow (2 door
models only) is set to NORMAL or HIGH HUMIDITY.
12 Volt DC Supply Check
AC and DC power connected
but not shown
3 Amp Fuse Check
WARNING
1