Ac Power Requirements; Ac Heaters; Ac Heater Circuit Fuse; Power Board Ac Power Cord - Norcold 1200 series Service Manual

AC Power Requirements

!
Electric shock hazard! The refrigerator receives
power from more than one source. Unplug the AC
cord from the RV AC receptacle before servicing
electrical or electronic components.
AUTO AC and AC Manual Mode operation require 108
to 132 Vac. AC power must be supplied through a 2
pole/3 wire/20 amp grounding type receptacle.

AC Heaters

!
Do not wire the heater direct! Wiring the heater
directly bypasses control safety devices and creates
the potential for an electrical fire.
The two AC heaters (see one heater pictured in Figure
28) are cartridge type heaters. The heaters are each
rated for 225 watts @ 120 Vac. Each heater's nominal
resistance is 64 Ohms.
Stop bead
Black wire
Yellow wire
Figure 28. AC heater
When there is poor or no cooling in AUTO AC or AC
Manual Mode:
a. Measure AC voltage input to the power board.
b. Measure heater amp draw.
c. If amp draw is not as specified, measure the
heater's resistance at ambient temperature.
NOTE
Heater resistance must be measured at ambient
temperature.
1200XX/120X-IMXX Models
WARNING:
WARNING:
Heater data
www.norcold.com/cda
When replacing the AC heater make sure the stop
bead rests fully against heater tube rim. Figure 28
shows the location of the stop bead.

AC Heater Circuit Fuse

The AC circuit fuse is a fast acting 5 amp
AGC type. It is on the power board, terminal F3.

Power Board AC Power Cord

!
The following warning is present on each AC
cord and should be strictly followed: This appliance
is equipped with a three-prong (grounding) plug for
your protection against shock hazards and should be
plugged into a properly grounded three-prong
receptacle. Do not cut or remove the grounding prong
from this plug.
The power board is supplied AC power through the
black AC power cord. See Figure 29. Do not modify or
cut the cord's grounding prong. Always make sure that
ground wire (green wire) is tightly fastened to the
refrigerator cabinet metal plate. The rounded side of
the AC cord's power board connection must be
connected to the power board with the rounded side
facing left.
Power board
connection
Ground wire
Figure 29. Power board AC power cord
Refrigerator Service Manual
1 " x 1 1 "
/ /
4 4
WARNING: