52
Troubleshooting
Models C708/C709/C716/C717
General Troubleshooting Guide
PROBLEM
CAUSE
REMEDY
1. Compressor will not run.
a. The power switch is in the “OFF”
position.
a. Place the switch in the “ON”
position.
b. An error has been made in key
pad selection.
b. Press the correct key for AUTO
operation.
c. The contactor is faulty.
c. Replace the contactor.
d. The compressor has burned out.
d. Replace the compressor.
e. The fuse or circuit breaker has
blown.
e. Replace the fuse, or turn on the
breaker.
f.
Tripped overload (compressor).
f.
Place the power switch in the
“OFF” position. Allow the
compressor to cool and the
overload to close before returning
the power switch to the “ON”
position. Check the connections of
the TXV bulbs.
g. Off on reset (beater motor).
g. Press the reset button.
2. Unit operates long.
a. Scraper blades are worn.
a. Replace scraper blades.
b. High overrun product
(C708/C716).
b. Check pump operation for correct
air/mix ratio.
3. Head pressure is too high.
a. Condenser is dirty.
a. Clean condenser.
b. Water valve is out of adjustment or
is restricted.
b. Check the adjustment and the
water supply.
c. Insufficient air space around unit.
c. Make sure there is sufficient air
space surrounding the unit (see
“Specifications”).
d. Refrigerant overcharge.
d. Correct refrigerant charge.
e. Blower is faulty.
e. Replace the blower.
4. Head pressure is too low.
a. Refrigerant shortage.
a. Repair leak and recharge.
5. Liquid line is hot.
a. Shortage of refrigerant.
a. Repair leak and recharge.
6. Excessive mix leakage through
the rear of the unit into the drip
pan.
a. Worn or missing drive shaft seal.
a. If worn, nicked or missing, replace
the drive shaft seal.
b. Inadequate lubrication.
b. Lubricate properly.
c. Drive shaft rotates forward.
c. Check gear alignment.
Summary of Contents for C708
Page 1: ...Models C708 C709 C716 C717 Heat Treatment Soft Serve Freezers Service Manual 059061 S 6 15 05 ...
Page 2: ......
Page 6: ...Table of Contents Models C708 C709 C716 C717 Notes ...
Page 22: ...16 Introduction Models C708 C709 C716 C717 Notes ...
Page 49: ...43 Models C708 C709 C716 C717 Systems Controls and Operations C708 C709 Control Overview ...
Page 50: ...44 Systems Controls and Operations Models C708 C709 C716 C717 C716 C717 Control Overview ...
Page 53: ...47 Models C708 C709 C716 C717 Systems Controls and Operations Refrigeration Schematic ...
Page 70: ...64 Troubleshooting Models C708 C709 C716 C717 Notes ...
Page 73: ...67 Models C708 C709 C716 C717 Parts Notes ...
Page 74: ...68 Parts Models C708 C709 C716 C717 Model C708 Exploded View ...
Page 78: ...72 Parts Models C708 C709 C716 C717 Model C709 Exploded View ...
Page 82: ...76 Parts Models C708 C709 C716 C717 Model C716 Exploded View ...
Page 86: ...80 Parts Models C708 C709 C716 C717 Model C717 Exploded View ...
Page 133: ...C708 C709 057010 27 Rev 6 05 ...
Page 134: ...C708 C709 057010 33 Rev 6 05 ...
Page 135: ...C708 C709 057010 40 Rev 6 05 ...
Page 136: ...C708 C709 057010 58 Rev 6 05 ...
Page 137: ...Model C716 059900 27 Rev 2 06 ...
Page 138: ...Model C716 059900 27 Inset 1 2 06 ...
Page 139: ...Model C716 059900 27 Inset 2 2 06 ...
Page 140: ...Model C716 059900 33 Rev 2 06 ...
Page 141: ...Model C716 059900 40 Rev 2 06 ...
Page 142: ...Model C716 059900 58 Rev 2 06 ...
Page 143: ...Model C717 059901 27 6 05 ...
Page 144: ...Model C717 059901 27 Inset 1 6 05 ...
Page 145: ...Model C717 059901 27 Inset 2 6 05 ...
Page 146: ...Model C717 059901 33 6 05 ...
Page 147: ...Model C717 059901 40 6 05 ...
Page 148: ...Model C717 059901 58 6 05 ...