American Dryer Corp ML-55II installation manual System Reset, S. Water Valve Check, S. Diagnostics

System Reset _________________________

After the microprocessor determines that the situation is under control and shuts the water being injected into the basket (tumbler) off, the microprocessor display will read “F.S.S. WAS ACTIVATED”, and the horn/tone will sound until reset manually.

To reset the microprocessor once the control displays “F.S.S. WAS ACTIVATED”, press the red “Stop/Clear” key on the keyboard (touch pad).

F.S.S. Water Valve Check _____________

The operation of the water solenoid valve can be tested to ensure that the water supply system and valve are functional. Before attempting a system check, be sure that all water supply shutoff valves to the dryer are in the Open position; the dryer must be in the “READY” mode with no cycle loaded or in progress.

•Press and hold the red “Stop/Clear” key (while in “READY” mode and no cycle is in progress).

•Press and hold the “A” key.

•Water valve will open and water will be dispensed into basket (tumbler) area as long as both keys are held.

The Phase 7 non-coin microprocessor controller (computer) will prompt the user to perform a F.S.S. valve check at every 4000 hours to ensure proper functionality. At the 4000 hour mark, the control will wait for end of the cycle and then will prompt the user to “PLEASE EMPTY TUMBLER, THEN PRESS THE ‘STOP/CLEAR’ AND ‘A’ KEYS TO TEST THE WATER VALVE.” When the ‘STOP/CLEAR’ and ‘A’ keys are pressed, the control will activate the F.S.S. water valve for 2 seconds, at which point the control will prompt the user with the following message: “IF WATER DID NOT TURN ON, CALL FOR SERVICE. THANK YOU.”

Note

The control will not let the user continue until the valve

!test has been completed.

F.S.S. Diagnostics _____________________

In the event that the Phase 7 non-coin microprocessor controller (computer) detects a fault in the F.S.S. system, the control will display the message “F.S.S. DISABLED…READY.” To find out why the F.S.S. is disabling, press and hold the red “Stop/Clear” and green “Start” keys. This will cause the control to display a diagnostic message, as detailed in the “F.S.S. Diagnostics Messages” section.

F.S.S. Diagnostics Messages __________

Open Thermistor Probe

This message indicates that the F.S.S. thermistor probe either is not connected or is damaged. If this condition is detected, the Phase 7 non-coin control will immediately enter F.S.S. DISABLED mode.

Shorted Thermistor Probe

This message indicates that the F.S.S. thermistor probe is damaged or the wiring is shorted. If this condition is detected, the Phase 7 non-coin control will immediately enter F.S.S. DISABLED mode.

Disconnected Water Valve

This message indicates that the water valve is open or that it is not connected to the control. If this condition is detected, the Phase 7 non-coin control will continue to monitor the condition for a period of 5 minutes before entering F.S.S. DISABLED mode. Once the condition is corrected, the control will continue to monitor the condition for 1 minute before exiting F.S.S. DISABLED mode.

Shorted Water Valve

This message indicates that the water valve is shorted or that the wiring to the valve is shorted. If this condition is detected, the Phase 7 non-coin control will continue to monitor the condition for a period of 5 minutes before entering F.S.S. DISABLED mode. Once the condition is corrected, the control will continue to monitor the condition for 1 minute before exiting F.S.S. DISABLED mode.

Water Not Connected

This indicates that there is no water pressure at the water valve. This will occur if water is not connected to the dryer, or if there is low water pressure in the water line coming to the dryer. This could also signify a defective pressure switch or defective wiring to the pressure switch. If this condition is detected, the Phase 7 non-coin control will continue to monitor the condition for a period of 5 minutes before entering F.S.S. DISABLED mode. Once the condition is corrected, the control will continue to monitor the condition for 1 minute before exiting F.S.S. DISABLED mode.

Starting a Cycle When Computer is in “F.S.S. is Disabled” Mode _______________

When the F.S.S. is disabled, the user can still start a cycle. However, when a cycle is started, the control will display the following message: “F.S.S. IS DISABLED. PRESS ‘START’ TO CONTINUE.” This message will be displayed every time a cycle is started, until the disabling condition has been corrected.

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