Troubleshooting - Machine - Stoelting SU444 Series Operator's Manual

5.3 TROUBLESHOOTING - FREEZER
PROBLEM
1 Power to machine is off.
Drive motor (auger)
2 Low line voltage.
"kicks-out", or
3 Product too hard.
does not run.
4 Front door not installed securely.
1 Power to machine is off.
2 Drive motor overloaded or no current
Compressor does
3 Low line voltage.
not operate.
4 Compressor internal overload is cut-
5 Front door not installed securely.
1 Right side CutOut setting is too low
2 Left side temperature setting is too
Product too soft.
3 Product breakdown.
4 Left side Standby/Serve switch in the
1 Right side CutOut setting is too high. 1 Adjust CutOut setting to match product
2 Left side temperature setting is too
Freeze-up. (Product
3 Low overrun setting.
will not dispense
easily.) 4 Low pump pressure.
5 Large air pocket in barrel.
6 Auger turning counter-clockwise.
7 Pump hoses kinked.
1 Seal missing or installed wrong.
Rear auger seal 2 Rear seal o-ring missing, broken or
leaks.
3 Worn or scratched shaft.
1 Spigot parts are not lubricated.
2 Chipped or worn o-rings.
Spigot leaks.
3 O-rings on spigot installed wrong.
4 Nicks or scratched on front door where
POSSIBLE CAUSE
detected.
out.
high.
Standby position
low.
not lubricated.
spigot is located.
1 Check power to machine.
2 Check, must be ±10% of nameplate voltage.
3 Increase overrun. (See Section 4.9)
4 Install front door securely.
1 Check power to machine.
2 Wait for 15-20 minutes for the thermal overload
to reset.
3 Check, must be ±10% of nameplate voltage.
4 Check condenser (air cooled) (See Sect. 4.14),
or water supply (water cooled).
5 Install front door securely.
1 Adjust CutOut setting to match product
requirements. (See Section 3.12)
2 Adjust the temperature. (See Section 4.2)
3 Fill with fresh product.
4 Place the Standby/Serve switch in the Serve
position.
requirements. (See Section 3.12)
2 Adjust the temperature. (See Section 4.2)
3 Increase overrun. (See Section 4.9)
4 Check pump pressure.
5 Purge air from barrel.
6 Change rotation to clockwise.
7 Check pump hoses for bending or kinking.
1 Install correctly. (See Section 3.9 and 3.10)
2 Inspect for breakage and lubricate properly.
(See Section 3.9 and 3.10)
3 Replace shaft.
1 Lubricate. (See Section 3.9 and 3.10)
2 Replace o-rings.
3 Remove spigot and check o-rings.
4 Replace front door.
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REMEDY