DONPER XF124 - GENERAL TROUBLESHOOTING

Page 14
Model 3311
GENERAL TROUBLESHOOTING
Machine problems 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.
&
CAUTION: Always disconnect power before attempting any maintenance procedures.
Only a
qualified service technician should perform electrical and mechanical adjustments or repairs.
PROBLEM
PROBABLE CAUSE
REMEDY
Machine will not run or freeze down
• 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
• Beater bar not installed
• Low refrigerant charge
• 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 beater bar (auger)
• Check for leaks, repair and recharge
Product too soft
• Consistency setting too loose
• Consistency setting at maximum
(red spring)
• Product BRIX level too high
• Too much alcohol in mix
• Readjust consistency control
• Change to yellow consistency spring
• Lower liquid product BRIX level
• Lower alcohol content
Product too stiff
• Consistency adjuster set too firm
• Product BRIX level too low
• Readjust consistency setting or change
to red spring
• Increase product BRIX level
Product will not dispense
• Power switch OFF
• Inadequate mix in hopper. Red MIX
LOW light on
• Consistency adjuster set too firm
• Feeduretor inlet hole clogged
• Drive belt broken or off pulley
• Drive shaft worn
• Drive motor failure
• Turn power switch ON
• Refill hopper
• Readjust consistency setting
• Unclog feeduretor inlet hole
• Repair or replace
• Inspect square drive shaft pocket for
excessive wear, replace
• Replace motor
Leakage from drain tube, front of
machine above drip tray
• Worn or defective shaft seal
• Seal installed incorrectly
• Replace seal and then lubricate at
each cleaning
• Remove and install seal
Excessive Dispensing Valve Leaks
• Worn or defective o-ring(s)
• Replace and lubricate
Clicking sound from inside machine
• Low voltage
• Extension cord is used
• Use dedicated circuit with proper
rating
• Connect directly to power source or
use power cord of proper size
Thumping sound from inside machine
• Worn belt
• Replace belt
Scraping sound during freeze down
• Frozen product scraping off of
cylinder walls
• No product in machine
• Sound should go away when product
is frozen to proper consistency
• Fill with product
Premature seal wear
• Incorrect installation of beater bar
• Improper drive shaft clearance
• Incorrect shaft alignment
• Advise careful installation
• Adjust to proper
• Align shaft
Merchandiser light flickers when
machine cycles
• Low voltage
• Connect machine to dedicated
circuit with proper rating
If you still need help, call our Service Department at (800) 695-4500 (Monday through Friday 8am - 8pm 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.