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300X Series Technical Manual 7610-002-64-22
Issued: 07-26-2006 Revised: N/A
SECTION 4: TROUBLESHOOTING
COMMON PROBLEMS
20
WARNING: Inspection, testing and repair of electrical equipment should only be performed by a qualified ser-
vice technician. Many of the tests require that the unit have power to it and live electrical components be
exposed. USE EXTREME CAUTION WHEN TESTING THE MACHINE.
Problem: Doors will not close completely.
1. Improper spring tension. Adjust spring tension as required by loosening (not removing) spring bolt nuts and adjusting the
tension. Tighten nuts back when done.
2. Obstruction in door channel. Remove the obstruction.
3. Doors are not square with frame. Adjust the frame to accommodate the doors.
Problem: Water leaks at the wash pump.
1. Wash pump seal defective. Replace the seal.
2. Petcock or pump drain (if equipped) not shut/tight. Close or tighten.
3. Loose hoses (hose clamps) on the wash pump. Tighten the hose clamps.
Problem: Will not rinse during autocycle.
1. Defective rinse solenoid. Repair or replace the rinse solenoid as required.
2. No water to the machine. Verify that there is water at 20A5 PSI connected to the machine.
Problem: Dishes are not coming clean.
1. Machine temperatures are not up to the minimum requirements. Verify that incoming water, rinse water, and wash water
match the required temperatures as listed on the machine data plate.
2. No detergent/too much detergent. Adjust detergent concentration as required for the amount of water held by the
machine.
3. Solid dispenser canister is empty. Replace the canister.