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764333-675
5.2.15 Drain Check Fault
Description – At end of Diagnostic Cycle, pressure in
housing of the MaxPure Filter is vented through CK8
to check cracking pressure. Pressure must be as follows
or alarm occurs:
3.51psi < pressure < 11.7psi
Action:
1. Faulty CK8 – replace.
2. Drain line restriction – repair.
3. Faulty PT1 – repair. (Refer to Figure 5-1 and 5-2.)
5.2.16 Ambient Temperature Fault
Description – A sensor on the control board monitors
ambient room temperature and alarm occurs if
temperature measured is > 65°C or <13°C.
Action:
1. Room temperature out of specification – resolve.
2. Faulty control board – replace.
5.2.17 Lid Open Fault
D
escription – Control monitors lid switch for open
condition during cycle. If open is sensed, alarm occurs.
Action:
1. Faulty LS4 – replace. (Refer to Figure 5-3.)
2. Loose connection at LS4 – repair.
3. Incorrect adjustment of latch flag assembly –
re-adjust.
5.2.18 HP Pump Fault
Description – Pressure switch LS6 monitors the pump
output under pump ON and OFF conditions. Should
the switch sense incorrect operation, an alarm occurs.
Action:
1. Wrong tray adapter used – refer to operating
instructions (e.g., C1315 adapter to be used on
C1220E and C1140E trays).
2. Faulty LS6 switch – replace.
3. Faulty P2 – test flow rate and output pressure,
replace if out of specifications.
4. Tubing under tray obstructed – replace tray.
5. Incoming water pressure out of specification –
check utility pressure values and discuss with
Customer.
5.2 DIAGNOSTIC CYCLE FAULTS (CONTINUED)
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