Stoelting E131G, Service Manual

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6.3.13 FREEZER REFREEZES TOO OFTEN IN GREEN LIGHT MODE

CAUSE

CORRECTION

Ambient temperature is high ......................................... Move or direct hot air away from freezer.
Control ‘LKG’ temperature is too high/low .................... Control ‘LKG’ temperature should approximately equal or slightly

...................................................................................... exceed the desired product serving temperature; change accord-
...................................................................................... ingly (refer to control setup procedure in subsection 3.2).

Liquid line solenoid valve has excessive seat
leakage ......................................................................... *Replace the liquid line solenoid valve.

6.3.14 FREEZER OPERATES TOO LONG OR CONTINUOUSLY

CAUSE

CORRECTION

Improper freezer air clearance ...................................... Remove airflow restrictions. Maintain adequate clearances.
Ambient temperature is high ......................................... Move or direct hot air away from freezer.
No mix or very low mix in hopper .................................. Add prechilled mix into hopper.
Mix inlet regulator orifice is too small ............................ Use larger orifice, especially for thicker mixes.
Mix inlet regulator is plugged ........................................ Unplug using small sanitized brush or disassemble, clean and

...................................................................................... sanitize all mix regulator parts.

NOTE

                           Avoid lubrication of check balls. Check balls must float freely.

Consistency setting is too firm ...................................... Adjust fine consistency potentiometer firmer. If more adjustment is

...................................................................................... required, increase coarse amperage ‘AMP CRS’ setting 0.5 amps
...................................................................................... accordingly with fine potentiometer at mid-range (refer to control
...................................................................................... setup procedure in subsection 3.2). If unable to establish desired
...................................................................................... consistency, follow the coarse amperage consistency procedure
...................................................................................... in subsection 3.2.

Spigot switch out of adjustment or defective ................ Adjust or replace spigot switch.
Condenser and/or filter is dirty ...................................... Clean condenser and/or filter.
Auger flights and/or springs are worn or missing ......... Replace flights and/or springs.
Hopper mix partially frozen and improperly
thawed .......................................................................... Thaw mix properly per manufacturer’s instructions.
Unit left in HOLD READY mode with low usage
(product breakdown) ..................................................... If time permits, turn power OFF, then ON to place freezer into

...................................................................................... standby mode. Barrel meltdown will immediately begin and should
...................................................................................... be complete in approximately 3 hours.

                                                                                             -OR-

...................................................................................... Clean and refill with fresh product.

Product breakdown ....................................................... Same as above.
Defective liquid line solenoid valve ............................... *Replace coil and/or liquid line solenoid valve.
Freezer refrigerant charge is low .................................. *Refer to Troubleshooting Subsection 6.3.22.
Condenser fan and/or motor is defective ...................... Replace fan and/or motor.
Expansion valve is defective or grossly out of
adjustment .................................................................... Replace the expansion valve. Do not adjust the expansion valve.
Refrigeration system problem ....................................... *Refer to Troubleshooting Subsection 6.3.18 through 6.3.22.

6.3.15 FREEZER IS NOISY

CAUSE

CORRECTION

Legs are loose or freezer is not level. ........................... Check legs, level top of freezer.
Loose parts or mounting. .............................................. Find and tighten
Defective drive belt. ...................................................... Replace drive belt.
Tubing rattle. ................................................................. Reform to be free of contact.
Bent fan causing vibration. ........................................... Replace fan.
Fan motor bearings worn. ............................................. Replace motor.
Internal compressor spring broken. .............................. Replace compressor.
Speed reducer bearings or gears faulty. ...................... Replace speed reducer.