Filter
Top Products
– 26 –
TROUBLESHOOTING
SYMPTOM POSSIBLE CAUSE
No Machine Operation. 1. Blown fuse or tripped circuit breaker at power supply.
2. Inspection door(s) not closed.
3. Conveyor jammed.
4. If Auto Timer was used, the timer may have timed out.
5. If table limit switch is used, the switch may be tripped.
6. Manual overload protector tripped on pump motors or conveyor
motor.
Dishes Not Clean. 1. Insufficient wash water due to drain obstruction preventing proper
drain closing.
2. Worn or torn drain O-ring allowing wash water to drain.
3. Missing end plug from wash arm.
4. Wash arm nozzle obstruction.
5. Water leaking past manifold O-ring.
6. Loss of water pressure due to pump obstructions.
DISCONNECT THE ELECTRICAL POWER TO THE MACHINE
AND FOLLOW LOCKOUT / TAGOUT PROCEDURES. Drain
tank(s) and check for any obstruction at the pump intake.
7. Incorrect water temperature. Check circuit breaker to electric heat
supply, or main steam valve. Make certain valve is completely
open.
8. Incorrect detergent dispensing. Contact your detergent
representative.
9. Strainer pans/buckets need to be emptied and/or cleaned.
Leaking Valve (Except 1. Foreign material preventing proper valve operation. A critical period
Solenoid Type) Supplied by is soon after installation when pipe compound or metal shavings
Others. may lodge at the valve seat. Shut off supply line. Unscrew and lift
bonnet from valve body. Clean valve and reassemble.
2. If problem is with a solenoid valve, it is recommended that you
contact your local Hobart Service office.
Spotting of Silverware, 1. Improperly loaded racks.
Glasses and Dishes. 2. Incorrect final rinse water temperature (180
°
F min.).
3. Loss of water pressure due to pump obstruction.
DISCONNECT THE ELECTRICAL POWER TO THE MACHINE
AND FOLLOW LOCKOUT / TAGOUT PROCEDURES. Drain
tank(s) and check for any obstruction at the pump intake.
4. Clogged wash arm nozzles.
5. Improper water hardness (4 to 6 grains/gallon is the recommended
range).
6. Incorrect detergent for water type.
7. Clogged rinse nozzle(s).
Low Final Rinse Temperature 1. Tank float not "up" to allow heat to turn on.
With Booster Heater. 2. Overtemp protector tripped.
3. Circuit breaker to heat system tripped.
4. Incoming water is below minimum temperature.
5. Temperature control needs adjustment or booster heater failure.
Contact your local service office.