Entering Diagnostic Mode - Viking FDB451 Service Manual

Entering Diagnostic Mode

To enter the Diagnostic mode, press the left most program button five times and then
immediately press the START" button, within 6 seconds. The unit will beep, and flash all LED's
three times. Close door to begin the Service cycle. To exit this mode before completion, hold
"START" key for three seconds.
VIKING
Start
Resume
The test cycle will run approximately 6-1/2 minutes and will run each component individually.
Be sure to close the soap dispenser cup as this function will also be energized opening up
the cup.
1. Drains for 85 Seconds 5 Seconds On–5 Seconds Off–30 Seconds On–5 Seconds Off–40
Seconds On.
2. Fills for 75 seconds.
3. Activates soap dispenser and wash arm diverter sets (duration varies).
4. Circulates top wash arm with heat for 40 seconds.
Note: Heater does not activate until the motor check is complete (16 seconds after motor
starts).
5. Water level check and wash arm diverter sets (duration varies).
6. Circulate lower wash arm with heat for 10 seconds.
7. Water level check and wash arm diverter sets (duration varies).
8. Circulate (filter clean) for 10 seconds.
9. Drains for 85 Seconds.
5 Seconds On–5 Seconds Off–30 Seconds On–5 Seconds Off–40 Seconds On
10. Vent wax motor and blower motor energize for 10 seconds.
11. When complete, you will hear two long beeps approximately ten seconds after the drain
cycle stops. This is the indication that the test cycle has completed.
Note: During this test cycle, if the control board senses a failure that it is
programmed to monitor, it will display an error code.
©2012 Viking Preferred Service
• Vari-Pressure Intelli-Wash
• Quiet Clean System
POTS NORMAL
• Airflo Gentle Dry PANS WASH
LIGHT FAST RINSE CLEAN
CHINA WASH HOLD
CYCLES
System Diagnosis
SANITIZED HI TEMP TOP SANITIZED
WASH WASH 155F RINSE
OPTIONS
2
4
DELAY
6
START
8
10
11