Stoelting E131G, Service Manual

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Control ‘LKG’ temperature is too high/low. .................. Control ‘LKG’ temperature should approximately equal or
...................................................................................... slightly exceed the desired product serving temperature;
...................................................................................... change accordingly (refer to control setup procedure in
...................................................................................... subsection 3.2).
Mix inlet regulator leaking air and/or mix. ..................... Check and/or replace missing, worn, or damaged o-rings
...................................................................................... and floating check balls. Lubricate o-rings accordingly.
NOTE
Avoid lubrication of check balls. Check balls must float freely.
Warm mix in hopper. ..................................................... Use prechilled mix in hopper.
Condenser and/or condenser filter is dirty. ................... Clean condenser and/or filter.
Freezer operating 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.
Fan or fan motor is defective. ....................................... Check, repair or replace.
6.1.3 LOW OVERRUN
CAUSE CORRECTION
Mix inlet regulator air tube is plugged. .......................... Unplug by using small sanitized brush.
Mix inlet regulator leaking air and/or mix. ..................... Check and/or replace missing, worn or damaged o-rings and
...................................................................................... floating check balls. Lubricate o-rings accordingly.
NOTE
Avoid lubrication of check balls. Check balls must float freely.
Legs are loose or freezer is not level. ........................... Check legs, level top of freezer.
Mix inlet regulator is being removed during
Freezing. ....................................................................... Do not remove mix inlet regulator during freezing.
Auger flights and/or springs are worn or missing. ........ Replace flights and/or springs.
Incorrect use of overrun scale. ..................................... Refer to Mix Characteristics section.
Product breakdown. ...................................................... Clean freezer, use new mix.
6.1.4 MIX SPRAY WHEN SPIGOT IS OPENED
CAUSE CORRECTION
Slightly elevated pressure in the barrel after
meltdown is maintained by the mix inlet
regulator check balls. .................................................... Open spigot slowly to relieve the elevated pressure in the
barrel before dispensing product.
6.2 BARREL AND HOPPER MIX TEMPERATURE MAINTENANCE
6.2.1 HOPPER TEMPERATURE IS TOO WARM
CAUSE CORRECTION
Warm mix in hopper. ..................................................... Use prechilled mix in hopper.
Not using insulated cover. ............................................ Use insulated cover.
E.P.R. valve needs adjusting. ....................................... Make appropriate adjustment. Refer to Refrigeration
...................................................................................... Section 4, Subsection 4.10
Ambient temperature is very warm. .............................. Move or direct hot air away from freezer.
Control ‘STB’ temperature is too high. .......................... Lower the ‘STB’ temperature 2° to 4°F accordingly. (Refer to
...................................................................................... setup procedure.)
Cap tube is partially or completely blocked. ................. *Check if E.P.R. valve setting can be achieved during freez
ing. If
............................................................................. not,
replace the cap tube.
Freezer refrigerant charge is low. ......................... *Refer to Troubleshooting Subsection 6.3.22