Hobart AM14 ML-110976, AM14C ML-110977 manual Service

Page 20

SYMPTOM

POSSIBLE CAUSE

Inadequate rinse or rinse water temperature too low.

1.Dirty line strainer causing reduced water flow. Turn off water supply, remove strainer cap, withdraw and clean screen. Reassemble.

2.Low supply line pressure.

3.Excessive mineral deposits throughout wash and rinse system. Deliming may be necessary.

4.Incoming water temperature to booster (if applicable) below 110°F. Extend wash cycle from 40 to 60 seconds.

Leaking valve (except solenoid

1.

Foreign material preventing proper valve operation. NOTE: A critical

 

 

period is soon after installation when pipe compound or metal shavings

 

 

may lodge at the valve seat. Shut off supply line. Unscrew and lift

 

 

bonnet from valve body. Clean valve and reassemble.

 

2.

If a solenoid valve is malfunctioning (not opening or not closing), it is

 

 

recommended that you contact Service.

 

 

 

No wash tank heat.

1.

The machine is equipped with a low water safety device which shuts off

 

 

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

 

 

level is too low, the overflow tube might be out of position. Or, something

 

 

may be inhibiting free movement of low water float; remove any foreign

 

 

object from around low water float magnet.

 

2.

Circuit breaker to machine tripped.

 

3.

Gas line closed.

 

 

If a failure occurs due to the gas heat control board or gas pressure, the

 

 

reset button, located on the side of the gas burner control box, will pop

 

 

out. This completely shuts off the gas heat system. To reset the system,

 

 

push the button in. If the system does not reset, contact Service.

 

 

 

No or slow fill.

1.

Water supply may be off; make sure water supply valve is open.

 

2.

Dirty line strainer causing reduced water flow. Turn off water supply,

 

 

remove strainer cap, withdraw and clean screen. Reassemble.

 

 

 

Dribbling water from lower

1.

If equipped with electric booster, normal dripping from the lower rinse

rinse arm.

 

arm will occur during water heating due to expansion of the water. This

 

 

will occur once between machine cycles.

 

2.

If water dribbles or leaks continuously from rinse arms on any machine,

 

 

refer to Leaking Valve, above.

 

 

 

SERVICE

Contact your local Hobart-authorized service office for any repairs or adjustments needed on this equipment. If a gas orifice fitting is to be adjusted or replaced, have it serviced by qualified Hobart- authorized service personnel. Long-term service contracts are available on this and other Hobart products.

FORM 34554 (Dec. 2000)

– 20 –

PRINTED IN U.S.A.

Image 20
Contents Model AM14 & AM14C Dishwashers For Your Safety Table of Contents Model AM14 & AM14C Dishwashers General Installation Installation CodesUnpacking LocationWater Requirements Plumbing Connections Drain ConnectionWater Connection Without Electric or Gas Booster Water HeaterGAS Tank Heat When Specified With Electric Booster Water HeaterVenting Requirements with GAS Tank Heat Rate of Exhaust Flow Calculations Check Rotation Three-Phase Machines Only Electrical ConnectionsDishwasher Electric Booster Water HeaterElectrical Data Hobart Infrared Booster Gas Water HeaterChemical Sanitizer Dispenser Detergent DispenserRinse Aid Dispenser Rinse Aid and / or Sanitizer Dispenser Fig Operation PreparationDishwashing Cleaning DOs and DONTs for Your NEW Hobart Warewasher Maintenance Wash ArmsRemoving Wash / Rinse Arms AM14 / AM14C MotorsSymptom Possible Cause TroubleshootingManual Reset Button on Pump Motors Service