Sanyo MDF-U500VX - Routine Maintenance and Replacements; Cabinet Cleaning and Defrosting; Air Intake Port and Component Replacement

- 36 -
10. Cap. tube heater control
Compressor is forced to stop running for 8 minutes after unit detects compressor was turned off at 2:00a.m.
or after.
When the compressor keeps running for 60 minutes after the unit completed diagnosis for cooling circuit,
the compressor is forced to stop running.
Both cap. tube heater A and B are not energized.
Preventive action against capillary tube blockage is done simultaneously in both A and B circuits.
11. Condensing fan motor control
In ECO mode, operation of condensing fan motor is linked with compressor for energy saving, when
ambient temp. is lower than +25㷄.
Note) There is a hysteresis to prevent operation being changed frequently when the ambient temp is
almost near +25㷄.
When the ambient temp. is higher than +25㷄, fan motor operates continuously regardless of compressor
operation.
12. Status codes
Status codes:
Status_1: When ambient temp. is lower than 0㷄 or higher than 35㷄
Status_2: When power supply voltage is 15% less than regulation
Status_3: When compressor keeps running for 5 days (Overloaded operation)
Indication: Status code blinks in the column, Status, and message is shown on the TopScreen.
13. MENU button
The MENU button will cause the MENU to appear on the display.
When MENU button is indicated on the TopScreen, it will disappear automatically if there are no operations
done in MENU button for 1 minute.
When MENU botton is not indicated on the TopScreen, the screen will be renewed once an hour if there are
no operations done using MENU button.
14. Replacement of battery, fan motor
(1) Replacement of battery
Timing: Battery accumulation time is over 2.8 years.
Indication: “Exchange a battery”
Reset: ‘Select Tools’ screen ĺ ‘Default setting’ ĺ Press Enter key
㸢
MENU-OK
㸢 ‘Calibration2’ 㸢 MENU-OK 㸢Input Function ‘409’ 㸢 Press ENTER key
㸢 MENU-OK 㸢 Battery accumulation time is reset
(2) Replacement of condensing fan motor
Timing: Fan motor accumulation time is over 5.6 years.
Indication: “Exchange fan motor A”, “Exchange fan motor B”, “Exchange fan motors A and B”
Reset: ‘Select Tools’ screen ĺ ‘Default setting’ ĺ Press Enter key
㸢
MENU-OK
㸢 ‘Calibration2’ 㸢 MENU-OK 㸢Input Function ‘419’ 㸢 Press ENTER key
㸢 MENU-OK 㸢 Condensing fan motor A accumulation time is reset
‘Select Tools’ screen ĺ ‘Default setting’ ĺ Press Enter key
㸢
MENU-OK
㸢 ‘Calibration2’ 㸢 MENU-OK 㸢Input Function ‘429’ 㸢 Press ENTER key
㸢 MENU-OK 㸢 Condensing fan motor B accumulation time is reset