Filter
Top Products
WARNING: Inspection, testing and repair of electrical equipment should be performed only by qualified service per
sonnel. Certain procedures in this section require electrical tests or measurements while power is applied to the
machine. Exercise extreme caution at all times. If test points are not easily accessible, disconnect power, attach test
equipment and reapply power to test. When replacing electrical parts, disconnect power at source circuit breaker.
Problem: Water overflow from bottom of door.
1. Clogged drain. Remove obstruction.
2. Machine not level. Level machine, or increase height to the front.
3. Excessive inlet pressure. Install pressure reducing valve, or adjust if one is present. Ensure flow is 20 ±5 PSI.
4. Detergent foaming. Reduce detergent quantity.
5. Excessive fill time. Adjust timer fill time as per Section 2.
Problem: Wash motor doesn’t operate on manual wash.
1. Loose or broken wires. Reconnect or replace wires in motor.
2. Defective manual wash switch. Replace.
3. Defective motor starting relay. Replace.
Problem: Motor operates on manual wash/delime but not on automatic.
1. Defective circuit in manual wash switch. Replace switch.
Problem: No water comes through the rinse arms when the “FILL” switch is depressed.
1. Water not turned on. Turn water on.
2. Defective solenoid valve. Replace solenoid valve.
Problem: Little or no water coming through the rinse assemblies.
1. Limed up rinse heads or piping. Delime rinse heads.
2. Low water pressure. Increase pipe size to machine. Adjust pressure regulator.
Problem: Rinse water runs continuously with breaker turned off.
1. Defective plunger in solenoid valve. Replace.
2. Defective diaphragm in solenoid valve. Replace diaphragm.
Problem: Wash temperature not at required reading on thermometer.
1. Check that white/blue wires are connected. See note on page 12.
2. Defective thermometer. Replace.
3. Defective thermostat. Adjust thermostat. Replace thermostat.
4. Rinse heater defective. Replace heater element.
5. Defective heater contactor R2. Replace.
6. Incoming inlet water temperature below required minmum.
7. Defective heater delay relay (R4). Replace
Delta 5 Installation & Operation Manual 7610-003-37-08
Issued: 05-25-2007 Revised: N/A
SECTION 4: TROUBLESHOOTING SECTION
COMMON PROBLEMS
15