
23
SECTION 4: TROUBLESHOOTING SECTION
COMMON PROBLEMS
Problem: The wash motor does not run even when the wash relay is manually depressed; other functions work.
1. Loose wire connections to motor, delime switch, or from contactors. Tighten wires as necessary.
2. Mechanical binding in pump. If the motor has the correct incoming voltage, and its overload is tripping, repair or replace the
pump.
3. Faulty wash motor. If the motor has the correct incoming voltage, and the pump is alright, replace the motor.
4. Faulty wash relay. With the wash relay pushed in, check the voltage between T1 and L1 of relay. If it measures 120 volts,
replace the relay.
5. High or low voltage problem. Check voltage at the wash motor and at the incoming power terminal block. Compare to elec-
trical specifications.
Problem: Wash motor runs continuously.
1. NORMAL/DELIME switch is in “DELIME” position. Place the switch in the “NORMAL” position.
2. Wash relay welded closed. Turn the machine off. If the wash relay doesn’t release, replace contactor.
3. Cam timer stalled in the wash or rinse cycle. If the cam timer is not rotating, check the voltage to the timer motor. If there is
no voltage when the door is closed, check the wires and/or replace the timer motor.
4. Wash motor microswitch is faulty. Tighten the connections, ensuring that the switch makes contact, replace if necessary.
Problem: Dishmachine keeps tripping the service breaker.
1. The power supply may be shorting to ground. Check for loose wires or burned connections.
2. Faulty door switch or detergent safety switch. Check for a loose or wet connection at the switch and wire connectors. Bypass
the switch to verify that it is indeed the problem. Replace the switch if necessary.
3. Pump impeller jammed. Clear the impeller.
4. Wash motor faulty. Check the motor voltage and amperage draw. If amperage draw is over 12 amps, replace the motor.
Problem: Low wash water pressure.
1. Water level is too low. Increase the fill time, or decrease the drain time, and verify that incoming water pressure is 20 PSI.
2. Sump strainer clogged. Clean and re-install.
3. Obstruction in either the wash pump housing or the wash manifold. Disassemble and clear obstruction.
4. Clogged wash arm nozzles. Remove the wash arms, clean the nozzles, then re-install.
Problem: Dishmachine will not drain.
1. Loose wire connection. Verify that all wire connections are tight.
2. Drain hole may be obstructed. Remove the obstruction.
3. Not enough time for unit to drain. Adjust the drain cam on the timer.
4. Drain rod bent or binding. Repair the rod, or replace as necessary.
5. Faulty drain microswitch on the cam timer. With the power off and the drain cam in the “home” position, remove the
WHITE/YELLOW wire from the microswitch. Measure the continuity between the ORANGE wire on the microswitch and the tab
that the WHITE/YELLOW wire was connected to. If there is no continuity, replace the switch.
Problem: Dishmachine will not hold water.
1. Faulty drain ball. Replace as necessary.
2. Drain hole may be obstructed. Remove the obstruction.
3. Drain rod bent or binding. Repair the rod, or replace as necessary.
PA-1/PA-2 Series Installation & Operation Manual
7610-002-24-11 Rev. J (11/02/2005)
Содержание Puritan PA-1
Страница 2: ......
Страница 7: ...1 SECTION 1 SPECIFICATION INFORMATION ...
Страница 14: ...SECTION 2 INSTALLATION OPERATION INSTRUCTIONS 8 ...
Страница 24: ...18 SECTION 3 PREVENTATIVE MAINTENANCE ...
Страница 26: ...20 SECTION 4 TROUBLESHOOTING ...
Страница 31: ...25 SECTION 5 SERVICE PROCEDURES ...
Страница 38: ...THIS PAGE IS INTENTIONALLY LEFT BLANK 32 ...
Страница 39: ...33 SECTION 5 PARTS SECTION ...
Страница 70: ...SECTION 6 ELECTRICAL SCHEMATICS 64 ...
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