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5.9 Control Panel
Check for continuity between the solder joints when the
button is held down. If the control panel has continuity it is
ok. From the 4 pin connection at the control panel conti-
nuity can be tested for proper operation also.
ON/OFF
AUTO/GAS
TEMP. SET
Continuity between
terminal 1 & 4 when
button pressed.
Continuity between
terminal 3 & 4 when
button pressed.
Continuity between
terminal 2 & 4 when
button pressed.
1 2 3 4
5.10 LED Display Panel
With the control panel in the OFF position, check for DC
voltage at Plug 1, Terminal 4 (orange wire) positive and
terminal 5 (red wire and or coach ground) negative, for
DC volts at the lower circuit board. If no voltage from lower
control to upper control, then check for input DC volts be-
tween J1 positive and J10 negative terminals on the lower
circuit board. If no voltage into lower control check 12 volt
power supplied to control system. If DC volts at J1 (posi-
tive) and J10 (negative) and no volts on orange wire to
upper control and fuse test OK, replace the lower board.
Next, with control panel in the ON position, check for DC
voltage at the upper circuit board between terminal P1-4
(orange) positive input from lower control , P1-3 (black
wire) positive output to lower control, P1-5 (green) posi-
tive output to lower control and P1-1 (red) negative and
or chassis ground. If no voltage and your previous check
veried voltage on the orange wire at the lower board the
upper display board or wire harness would be at fault.
The orange wire sends power to upper control and when
turned on the upper control sends DC volts back down the
green and black wire. The red wire in the harness is the
upper display ground (12 volt negative).
LED Display
Panel
6 Wire Harness
Lower Control Board
Second, remove all wires from the switch assembly, then
check the switch. When the switch is depressed, there
should not be continuity. When the switch is NOT de-
pressed, there should be continuity. If any of these checks
are incorrect, replace the switch. After the check, be sure
the switch assembly is wired properly per the wiring dia-
gram.
5.11 Flap Heater Wire
The climate control heater is located in the ap on the
left hand refer door. The heater helps to reduce sweat-
ing between the doors during periods of high humidity.
The heater is on any time the refrigerator is turned on. At
the bottom of the door near the hinge there is a two pin
contact that provides power for the heater. At the two pin
connection take an ohms resistance reading. The Ohms
should be 29 +/- 10%.
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