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Models 750, 751, 754, 774, 794Troubleshooting Guide
PROBLEM PROBABLE CAUSE REMEDY PAGE
REF.
5. The mix in the mix hopper
is too warm.
a. The temperature is out of
adjustment.
a. Call service technician to
adjust the mix hopper
temperature.
-- -- --
b. Missing or defective mix
hopper gasket.
b. Replace/install the gas ket
around the m ix hopper.
22
c. The m ix hopper cover is
not in position.
c. Place the cover in
position.
23
d. The MIX REF light is not
lit.
d. Press the MIX REF key.
13
6. The drive s haft is stuck in
the drive coupling.
a. Rounded corners of drive
shaft, coupling, or both.
a. Call service technician to
correct cause, and t o
replace the necessary
components. Do not
lubricate the hex end of
the drive shaft.
-- -- --
b. Mix and lubricant collected
in the drive coupling.
b. Brush clean the rear shell
bearing area regularly.
24
7. The freezing cylinder walls
are scored.
a. The beater assembly is
bent.
a. Call service technician to
repair or r eplace the
beater and to correct the
cause of i nsufficient mix
in the freezing c ylinder.
-- -- --
b. The front bearing is
missing or worn on t he
freezer door.
b. Install o r replace the front
bearing.
16
8. Excessive mix leakage
into the rear drip pan.
a. Missing or wor n drive
shaft seal on drive shaft.
a. Install o r replace regularly.
15 / 30
b. The rear s hell bearing is
worn.
b. Call service technician to
replace rear shell bearing.
-- -- --
9. Excessive mix leakage
from door spout.
a. Missing or wor n draw
valve o-rings.
a. Install o r replace regularly.
18 / 30
b. Inadequate lubrication o f
draw valve o-rings.
b. Lubricate properly.
18
c. Wrong type of lubricant is
being used (example:
petroleum base lubricant).
c. Use t he proper lubricant
(example: Taylor Lube).
15
10. No freezer operation a fter
pressing the AUTO key.
a. Unit is unplugged. a. Plug into wall receptacle.
-- -- --
b. The circuit breaker is off
or the fuse is blown.
b. Turn the breaker on, or
replace the fuse.
-- -- --
c. The beater m otor i s out on
reset.
c. Reset the f reezer.
14