Vollrath F431 User Manual
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5.3 TROUBLESHOOTING - MACHINE
PROBLEM
POSSIBLE CAUSE
REMEDY
Drive motor (auger)
“kicks-out”, or
does not run.
1. Power to machine is off.
1. Check power to machine.
2. Low line voltage.
2. Check, must be ±10% of nameplate voltage.
3. Product too hard.
3. Raise overrun. (See Section 4.8)
4. Front door not installed securely.
4. Install front door securely.
Compressor does
not operate.
1. Power to machine if off.
1. Check power to machine.
2. Low line voltage.
2. Check, must be ±10% of nameplate voltage.
3. Compressor internal overload is cut-
out.
3. Check condenser (air cooled)(See Sect. 4.13),
or water supply (water cooled).
4. Front door not installed securely.
4. Install front door securely.
Product too soft.
1. CutOut setting is too low
1. Adjust CutOut setting to match product
requirements.(See Section 3.10)
2. Product break down.
2. Fill with fresh product.
Freeze-up. (Product
will not dispense
easily.)
1. CutOut setting is too high.
1. Adjust CutOut setting to match product
requirements.(See Section 3.10)
2. Low overrun setting.
2. Raise overrun. (See Section 4.8)
3. Low pump pressure.
3. Check pump pressure.
4. Large air pocket in barrel.
4. Purge air from barrel.
5. Auger turning counter-clockwise.
5. Change rotation to clockwise.
Rear auger seal
leaks.
1. Seal missing or installed wrong.
1. Install correctly. (See Section 3.8)
2. Rear seal o-ring missing, broken or
not lubricated.
2. Inspect for breakage and lubricate properly
(See Section 3.8)
3. Worn or scratched shaft.
3. Replace shaft.
Spigot leaks.
1. Spigot parts are not lubricated.
1. Lubricate. (See Section 3.13)
2. Chipped or worn o-rings.
2. Replace o-rings.
3. O-rings on spigot installed wrong.
3. Remove spigot and check o-rings.
4. Nicks or scratched on front door where
spigot is located.
4. Replace front door.
Drive belts slipping
or squealing.
1. Drive belt tension not correct.
1. Adjust belt tension. (See Section 4.12)
2. Worn belt(s).
2. Replace belts.
3. Low overrun.
3. Check for air leak.
Mix temperature
too warm in cab.
1. Temperature control set too warm.
1. Decrease CabCtOut and CabCutIn (See
Section 4.7)
2. Cab door is open.
2. Close the cab door.