Troubleshooting - Grindmaster 3312 User Manual

GENERAL TROUBLESHOOTING
Freezer problems typically originate from three sources - improper operation, mix problems or mechanical
malfunction. Always check for improper operation and mix problems first, as they are the most common cause of
most equipment problems.
Always disconnect power before attempting any maintenance procedures.
Only a qualified service technician should perform electrical and mechanical adjustments or repairs.
PROBLEM
Machine will not run or freeze down
Product too soft
Product too stiff
Product will not dispense
Leakage from drain tube, front of freezer
above drip tray
Excessive Dispensing Valve Leaks
Clicking sound from inside machine
Thumping sound from inside machine
Scraping sound during freeze down
Premature seal wear
Merchandiser light flickers when freezer
cycles
If you still need help, call our Service Department at (800) 695-4500 (USA & Canada only) or (502) 425-4776 (Monday through Friday 8am -
6pm EST) or an authorized service center in your area. Please have the model and serial number ready so that accurate information may
be given. Prior authorization must be obtained from Grindmaster's Technical Services Department for all warranty claims.
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CAUTION
PROBABLE CAUSE
• Machine not plugged in
• Circuit breaker tripped or fuse blown
• Machine in CLEAN or OFF position
• Obstructed condenser air flow
(Air-cooled units)
• Compressor not operating
• Dasher not installed
• Low refrigerant charge
• Consistency setting too loose
• Consistency setting at maximum
(red spring)
• Product BRIX level too high
• Too much alcohol in mix
• Consistency adjuster set too firm
• Product BRIX level too low
• Power switch OFF
• Inadequate mix in hopper. Red MIX
LOW light on
• Consistency adjuster set too firm
• Carburetor inlet hole clogged
• Drive belt broken or off pulley
• Drive shaft worn
• Drive motor failure
• Worn or defective shaft seal
• Seal installed incorrectly
• Worn or defective o-ring(s)
• Low voltage
• Extension cord is used
• Worn belt
• Frozen product scraping off of
cylinder walls
• No product in machine
• Incorrect installation of dasher
• Improper drive shaft clearance
• Incorrect shaft alignment
• Low voltage
REMEDY
• Plug machine in
• Reset breaker or replace fuse
• Switch to ON position
• Clean condenser. Allow 6" (15 cm)
on both sides
• Check for cause and correct
• Install dasher (auger)
• Check for leaks, repair and recharge
• Readjust consistency control
• Change to yellow consistency spring
• Lower liquid product BRIX level
• Lower alcohol content
• Readjust consistency setting or change
to red spring
• Increase product BRIX level
• Turn power switch ON
• Refill hopper
• Readjust consistency setting
• Unclog carburetor inlet hole
• Repair or replace
• Inspect square drive shaft pocket for
excessive wear, replace
• Replace motor
• Replace seal and then lubricate at
each cleaning
• Remove and install seal
• Replace and lubricate
• Use dedicated circuit with proper
rating
• Connect directly to power source or
use power cord of proper size
• Replace belt
• Sound should go away when product
is frozen to proper consistency
• Fill with product
• Advise careful installation
• Adjust to proper
• Align shaft
• Connect freezer to dedicated circuit
with proper rating
Model 3312