MP–129 Series Water-Saver
350545 4–7
TROUBLESHOOTING
PROBLEM POSSIBLE CAUSES REMEDY
Little or no vacuum
(motor running).
1. Chamber Drain Screen clogged.
2. Solenoid Valve 15SV (20SV) not opening.
3. Solenoid Valve 2SV not opening properly.
4. Solenoid Valve 4SV not opening properly.
5. Clogged Ejector or Vacuum Line.
6. Water Supply off or restricted.
7. Temperature Switch.
8. Check Valve 9CV.
9. Pump defective.
10. Piping leaks.
1. Clean Drain Screen.
2. Clean or repair.
3. Clean or repair.
4. Clean or repair.
5. Clean or replace.
6. Restore Water Supply.
7. Readjust or replace.
8. Clean or replace.
9. Repair or replace.
10. Repair or replace.
Motor does not run. 1. Electrical Supply off.
2. Motor defective.
3. Pump seizes.
1. Restore Electrical Supply.
2. Repair or replace.
3. Repair or replace.
Water overflows
continuously from
reservoir.
Temperature Switch activated. Repair or readjust.
Overflow water too hot
(steam).
Temperature Switch set too high. Adjust Temperature Switch.
(Refer to Sterilizer Service Manual — “Trouble Analysis.”)
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