TM 10--3510--221--10
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LAUNDRY ADVANCED SYSTEM
INTRODUCTION TO TROUBLESHOOTING
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GENERAL
This chapter contains information for troubleshooting common LADS malfunctions. This chapter cannot list all tests,
inspections, and corrective actions needed to correct all malfunctions. If a malfunction is not listed, or if the actions
listed do not correct the fault, notify your supervisor.
ALARM CONDITIONS
When the control system detects the need for some type of operator attention, relating to a laundry cycle, an audible
alarm will sound, and a message will be displayed at operator panel A or B. If a fault occurs, or attention is required
on washing/drying system A or B, water recycle system, heating system, air system, or control system, the indication
will be provided at operator panel A. There are four alarm levels associated with LADS operation. Level 1: When the
system is operating normally the audible alarms are off, the SYSTEM OPERATIONAL lamps are on, and the
ATTENTION REQUIRED lamps are off. Level 2: If the alarm(s) comes on, and remains steady, this indicates that
some type of operator action is required. In most cases level 2 alarms alert the operator of a condition that must be
corrected, but is not necessarily a fault (i.e. ”DRUM DOOR NOT LOCKED”, ”ADD FRS”, ”UNLOAD LAUNDRY”, etc.).
In all cases (except ”DRUM WON’T BALANCE”) the operator must perform the required action before the control
system will allow laundry cycle(s) to continue. Level 3: If the alarm comes on with a slow pulse a non--critical fault
has occurred. In most cases the current laundry cycle(s) may be completed, however, in some cases the current
laundry cycle must be ended. Level 4: If the alarm comes on with a fast pulse a critical fault has occurred and LADS
operation will be shut--down by the control system. Whenever a level 4 alarm comes on the ATTENTION REQUIRED
lamp(s) will also be on and the SYSTEM OPERATIONAL lamp will be off.
EXAMINING SYSTEM STATUS
During water filling, water heating, laundry, cooldown, and draining operations the status of key system parameters
can be monitored using the EXAMINE INPUTS mode. Also, when conducting troubleshooting procedures,
references may be made to use the EXAMINE INPUTS mode to observe a particular sensor or switch status.
Obtaining access to this information is described below.
1. Monitor display (WP 0008 00, Figure 2,6), it should read:
WASH CYCLE X IN PROGRESS
PAUSE
WASH= XXX F DRY= XXX F
FILL FROM WASH TANK
EXAMINE INPUTS
or
CYCLE PAUSED
CONTINUE CYCLE
END CYCLE
EXAMINE INPUTS
2. Press MENU SELECTION switch (10) to select EXAMINE INPUTS.
3. Monitor display (6), it should read:
ANALOG INPUTS
EXAMINE INPUTS
DISCRETE INPUTS
RETURN
