Dometic DM2652 - Troubleshooting; Refrigerator Not Operating, Interior Light Off

l-
MODES OF OPERATION
AUTO MODE
.
AES/AUTO MODE
When operating
in AUTO
-
AES/AUTO mode, the
AUTO
-
AES/AUTO mode
indicator lamp is illuminated. The
con-
trol system
will automatically select between
AC
and GAS
operation.
AC has
priority
over GAS. Should
AC
become
unavailable,
the system automatically switches
to GAS.
As soon as
AC
becomes
available again,
the
control
will
switch back to
AC regardless of the status of
the
GAS
operation.
lf the CHECK
indicator lamp
is illuminated the
controls
have failed to
ignite the burner in the GAS
mode. To re-
start an ignition attempt
with the CHECK
lamp illuminated
(or
to turn off
the CHECK
lamp),
press
the
ON/OFF
button
OFF and back
ON again.
The
control system
activates
the ignition system
and
makes
three attempts
to light the
burner
for a
period
of approximately
45
seconds at
two
minutes interval. Should
120 VAC
become available
while
the CHECK indicator
lamp is on, the CHECK lamp will nof
turn off until
the
ON/OFF
button is
pressed
OFF and then
ON again.
GAS
MODE
RM2351, RM2451,
RM2551, DM2652 & DM2852:
When operating
in GAS
mode,
the
AUTO mode indicator
lamp will be
off.
RM2354, RM2454,
RM2554, DM2662, DM2663, DM2862 &
NDM1062:
When operating
in
GAS
mode, the GAS Mode
indictor
lamp is illuminated.
This mode
provides
LP
gas
only.
The
control
system acti-
vates the ignition system
and attempts to
light the burner
for
a
period
of approximately
45 seconds at
two minutes
interval.
lf unsuccessful,
the CHECK
indicator lamp will
illuminate.
To restart GAS
operation,
press
the ON/OFF button
to
OFF and
then back ON.
The control system attempts
a
new ignition
sequence.
DC MODE
RM2354,
RM2454,
RM2554 & DM2663
When operating
in DC mode
(3-way
models only),
the DC
mode
indicator
lamp is illuminated and all other
lamps
are off.
To select another
operating
mode, turn off the DC
mode by
pressing
the DC selector button.
The DC lamp
is turned off.
When there
is no charging of the
house
battery, switch
to
AUTO mode or GAS
mode since runni
ng
the
refrigerator on
12VDC
will
quickly
drain the battery.
LIMP
MODE OF OPERATION
ln the
event of a failure of a
major operating component,
the control
system
will continue
to operate the
cooling
system.
RM2351,
RM2451, RM2551, DM2652
& DM2852
lf
the control can not read the
temperature sensor
and
control the
preset
temperature,
the control will run the
cooling unit continuously at
the energy
source
available.
The refrigerator will continue
to operate
in
this mode in-
definitely
-
or
-
until a
new sensor
is installed
and the sys-
tem reset.
RM2354,
RM2454, RM2554,
DM2662,
DM2663, DM2862
&
NDM1062
Two modes
of operation
can occur:
'1)The
first limp mode of
operation will execute if the
display module
becomes
non
functional.
The
control
system reverts to
full
automatic
operation selecting
the best energy source
available with AC, DC
(3-
way
only) and GAS
priority.
The
temperature setting
is
maintained at the
mid
position.
The
power
module
will
continually attempt
to
reestablish operation of the
display module.
2) The
second
limp mode
of operation will execute when
a
failure
of the temperature
sensing device or associ-
ated
electronic
circuitry
occurs. lf this should happen,
the control system operates
on the energy source se-
lected via the control
panel.
The cooling unit runs con-
tinuously on the selected
energy source.
The refrig-
erator continues to
operate
in this mode indefinitely or
until
a
new sensor
is installed and the system
is reset.