SYMPTOM

POSSIBLE CAUSE

 

 

Continuous Rinse

1. Photoelectric sensors are blocked. Clean sensor openings (Fig. 27).

Operation (on

2. Remove side panels from load end of machine adjacent to pre-wash

machines equipped

 

chamber. With machine power on, verify indicators on upper sensor

with Photoelectric

 

(Fig. 36) flash on and off when blocking and unblocking the upper

Sensor Rinse, Figs. 27,

 

sensor. Start machine running; verify lower sensor indicator (Fig. 36) is

36.)

 

flashing when conveyor is running. Some conveyor configurations only

 

 

have the upper sensor. If either indicator does not flash, contact

 

 

Hobart Service to replace sensors.

 

4.

Rinse valve failed or jammed open. Contact Hobart Service.

 

 

No Wash Tank Heat.

1. The machine is equipped with low water safety devices which shut off

 

 

heat if water level drops. Check for proper water level.

 

2.

Circuit breaker to heat system tripped.

 

3.

Check heat float for debris and free movement.

 

4.

Steam supply valve not open completely.

 

5.

Overtemp protector tripped. Contact Hobart Service.

 

 

No Fill or Slow Fill.

1. Dirty line strainer (Fig. 37) causing reduced water flow. Turn off water

 

 

supply, remove strainer cap, withdraw and clean screens.

 

2.

Make sure doors are closed.

 

3.

Check both upper and lower fill floats for debris and free movement.

 

4.

Problem with solenoid valve. Contact Hobart Service.

 

 

 

UPPER SENSOR IS ALWAYS PRESENT.

LEFT GREEN LIGHT INDICATES

POWER IS ON.

RIGHT AMBER LIGHT IS OFF

WHEN OPENING IS BLOCKED, AND

ON WHEN OPENING IS CLEAR.

LOWER SENSOR IS NOT ALWAYS

PRESENT.

LEFT GREEN LIGHT INDICATES

POWER IS ON.

RIGHT AMBER LIGHT MAY BE

BLOCKED BY CONVEYOR

FLIGHT LINK, AND IS ON

WHEN OPENING IS CLEAR.

PL-41435-1

Fig. 36

SERVICE

LINE STRAINER

PL-41182-1

Fig. 37

Contact your local Hobart-authorized service office for any repairs or adjustments needed on this equipment. Long-term Maintenance contracts are available on this and other Hobart products.

– 15 –

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Image 15
Hobart FT900 SERIES manual Flash on and off when blocking and unblocking the upper, Service