Service Mode - Amana sbde522vw Service Manual

Ice ‘N Water Systems
Electronic notes:
1) There is a 60 second delay upon power up before the compressor and condenser fan will be energized (if
required). The damper will be in its final state after 3 minutes. (The damper will open and close to
guarantee a correct starting point. Each operation is timed at one minute).
2) If the water valve or auger motor connections are not made (similar to open circuit) the control will Lock out
the dispenser functions (Lock LED will also illuminate). This also includes the situation in which the
thermal cutout on the auger motor opens.
3) Under normal run conditions the damper motor operation will suspend when either door is open. The
evaporator motor will turn off if the freezer door is open.
4) Fault code “ES” in the display represents shorted Thermistor. Fault code “EO” in the display represents
open Thermistor. These codes in the corresponding display section indicate the Thermistor location that is
at fault. “Error” in display represents open communication link between boards.

Service Mode

The Service Mode is used for manual and automated testing of the control and its outputs through internal
voltage checks. It will also act as the platform in which to update various control variables and to change
calibration levels. Only Qualified service technicians should use the service mode.
General
To turn unit into the OFF position press and release the raise Freezer Temperature Arrow Key until OFF is
in the display and press Confirm Settings Key. Note Unit must be in OFF setting to enter Service Mode.
To enter the Service Mode press the Alarm Off and Vacation key simultaneously for 5 seconds. Then
press the Alarm Off and Auto Light key simultaneously for an additional 5 seconds.
There are levels to the Service Mode. – Mode A and Mode B. Mode A is for system checks and Mode B is
for calibration changes. In each mode, there are a number of options to choose from – see below. To enter
or exit from any option, press the Confirm Settings Key. The Water and Main Actuator switches will not
work.
Mode A – System Checks
The Mode is displayed in the Freezer Display section and is controlled by the Freezer Temperature Set
keys. The Option is displayed in the Refrigerator Display section and is controlled by the Refrigerator
Temperature Set keys. The Left most character display in the Freezer Temperature Display section
contains the character ‘S’ to signify that the user is in the Service Mode.
Option 1 – Display Error Codes To enter or exit from this option, press the Confirm Settings Key
Any Error Code that was detected under normal operation will be displayed in the Refrigerator Temperature
Display section. If multiple faults exist, pressing the Raise Refrigerator Temperature key will scroll through all
the faults. The following table shows the Outputs and Error Codes. Pressing the Alarm Off key in this mode
will reset the Error Memory Log to No Faults Present
Fault Description
No Faults Present
Compressor Output
Condenser Fan Output
Option 2 – Display Average On and Off Times To enter or exit from this option, press the Confirm Settings Key
This option will display the Average Compressor On and Compressor Off Times for the Last 5 cycles. The
character ‘O’ for On Time or ‘F’ for Off Time will then be displayed in Freezer Temperature Display section. The
time will then be displayed in the Refrigerator Temperature Display section. If either time is above 99 minutes,
then the control will display two dashes (—). Any of the Refrigerator Temperature Set keys will toggle between
the On and Off times.
Error Code
00
CP
Cd
Fault Description
Evaporator Fan Output
Damper Motor Output
Communication Link Lost
Defrost Heater Output
43
Error Code
EF
dP
CL
dH
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