Norcold 1200 Series Service Manual page 18

"AC" "LO" Fault Code – AC voltage low
Before beginning this procedure:
Determine if a certain AC power source sets the "AC LO" fault code (generator, shore power, inverter).
Make sure no other appliance or lighting circuit is connected to the refrigerator AC circuit.
Make sure extension cords are not being used to supply AC power to the refrigerator.
Fault indicator displayed:
ON
OFF
Measure voltage at power
board AC cord connection.
"AC" "HI" Fault Code – AC voltage high
Before beginning this procedure:
Determine if a certain AC power source sets the "AC HI" fault code (generator, shore power, inverter).
Fault indicator displayed:
ON
OFF
"AC" LED Flashing
Measure voltage at power
board AC cord connection.
1200XX/120X-IMXX Models
14
"LO" Flashing
Coldest
Cold
TEMP
MODE
SET
AUTO AC LP GAS
AC LED blinking
Voltage
lower than
108 Vac?
"HI" Flashing
Cold Coldest
TEMP
MODE
SET
AUTO AC LP GAS
Voltage
higher than
132 Vac?
1 COLD - 9 COLDEST
Flashing "AC" and "LO"
YES
Fault related to RV AC power distribution
component or circuit supplying AC power
to refrigerator.
NO
Replace power board.
See page 39.
on
1 COLD - 9 COLDEST
"Sr" and "FS" Flashing
YES
Fault related to RV AC power distribution
component or circuit supplying AC power
to refrigerator.
NO
Replace power board.
See page 39.
on
SET TEMP MODE ON / OFF
SET TEMP MODE ON / OFF
Refrigerator Service Manual