7-3
Troubleshooting
Operator Manual
122998-741
6.
Vapor escaping under door(s).
1.
Exhaust exhaust system off - Verify operation of applicable option.
2.
Building vent connections inadequate - Increase CFM capabilities.
7.
Pump starts before appropri-
ate-ate sump water level is
reached.
Water level float ball malfunctions - Verify operation of float ball.
Clean or replace as necessary.
8.
Pump runs with insufficient or
no pump pressure.
1.
Vortex plate clogged - Remove debris from under plate.
2.
Water level float ball malfunctions - Verify operation of float ball.
Clean or replace as necessary.
3.
Water temperature in excess of 195°F (91°C) - Lower temperature
set point.
4.
Self-cleaning screen clogged - Remove debris from screen.
5.
Pump rotating in wrong direction - Verify pump rotation as indi-
cated by arrow.
6.
Foam in chamber - Rinse chamber with cold water and decrease
detergent injection rate.
7.
Compression fitting on pump RTD, located in suction pick-up pipe,
is leaking air - Verify for leaks and improper installation. Seal leaks
or correct installation as necessary.
9.
Header drive system not oper-
ating properly.
Spray header jammed - Verify chamber for obstruction.
10. Washer operation stops during
cycle.
1.
Loose connection in control wiring - Inspect all control wiring con-
nections and tighten if necessary.
2.
Electrical component failure (e.g. motor starter) - Replace applica-
ble component.
3.
Control fuse failed - Replace fuse.
11. Foam in chamber.
1.
Detergent is foaming - Use recommended products.
2.
Too much detergent injected during Wash phase - Verify injection
rate.
12. Chamber does not drain prop-
erly.
NOTE: 1 to 2 inches of water
remains in sump after draining.
1.
Self-cleaning screen clogged - Remove debris from screen.
2.
Drain line plugged - Flush out line.
3.
Defective drain valve - Repair or replace valve as necessary.
4.
Drain time set too short - Lengthen programmed drain time to
approximately 15 seconds past pressure drop.
Table 7-1. Operator Troubleshooting Chart - No Alarm or Printout (Cont’d)
PROBLEM
POSSIBLE CAUSE AND CORRECTION
