7-4
122998-741
Operator Manual
Troubleshooting
13. Load comes out dirty.
1.
Empty detergent container - Replace container.
2.
Incorrect detergent used - Use recommended products.
3.
Spray jets clogged - Clean jets.
4.
Pump suction strainer clogged - Clean strainer.
5.
Water temperature in excess of 195 °F (91 °C) - Lower temperature
set point.
6.
Self-cleaning screen clogged - Remove debris from screen.
7.
Loose hose connection on pump suction strainer - Tighten hose
clamps or replace as necessary.
8.
Spray jets misaligned - Realign jets toward load surfaces.
9.
Pump rotating in wrong direction - Verify pump rotation as indi-
cated by the arrow.
14. Printing defect appears consis-
tently in the same column.
Debris trapped on the print head - Dislodge debris by removing
thermal paper from printer, inserting a one-inch wide strip of bond
type paper under the print head, and moving the paper in both lin-
ear and circular motions.
15. Machine will not start.
1.
Power Off - Turn on power (3 phase and 110 volt on panel).
2.
Hot water supply off - Turn hot water supply on.
3.
Door switch failure - Make sure door (s) are closed completely.
4.
Faulty level sensing - Clean warrick probes in sump.
5.
Blown fuse - Replace with proper size.
16. Pump pressure too low.
1.
Faulty level sensing - Clean water level probes in sump.
2.
Temperature in excess of 195°F (91°C) - Lower set-point tempera-
ture.
3.
Self-cleaning screen blocked - Remove, clean, and reinstall prop-
erly.
4.
Too much soap - Rinse with cold water and decrease usage.
17. Pump pressure too high.
1.
Self-cleaning screen blocked - Remove, clean, and reinstall prop-
erly.
2.
Plugged Jamesbury drain valve - Remove union exiting self-clean-
ing screen, clear obstruction, and reconnect.
3.
Plugged spray jets - Poke debris into jets, remove plugs located at
bottom of spray header, run spray manually, reinstall plugs.
Table 7-1. Operator Troubleshooting Chart - No Alarm or Printout (Cont’d)
PROBLEM
POSSIBLE CAUSE AND CORRECTION
