General Troubleshooting Guide - Taylor C712 Service Manual

TROUBLESHOOTING

General Troubleshooting Guide

Problem
1. Compressor will not run.
3
2. Machine operates long
(cycles off on the 11
minute safety timer.
3. Head pressure is too
high.
4. Head pressure is too low.
5. Liquid line is hot.
6. Excessive mix leakage
through the rear of the
unit into the drip pan.
7. Low overrun.
3-2
Table 3-1
Probable Cause
a. The power switch is in the OFF position.
b. An error has been made in key pad
selection.
c. The contactor is faulty.
d. The compressor has burned out.
e. The fuse or circuit breaker has blown.
f. Tripped overload (compressor).
g. Off on reset (beater motor).
a. Dirty condenser.
b. Scraper blades are worn.
c. Shortage of refrigerant.
d. Air in the system.
e. High overrun product (C712).
a. Condenser is dirty.
b. Water valve is out of adjustment or is
restricted.
c. Insufficient air space around machine.
d. Refrigerant overcharge.
e. Blower is faulty.
a. Refrigerant shortage.
a. Shortage of refrigerant.
a. Worn or missing drive shaft seal.
b. Inadequate lubrication.
c. Drive shaft rotates forward.
a. Bad scraper blades.
b. Faulty air/mix pump components (C712).
c. Restricted air intake (air/mix pump) (C712).
d. Long ON cycles.
Models C712/C713
Remedy
a. Place the switch in the ON position.
b. Press the correct key for Auto operation.
c. Replace the contactor.
d. Replace the compressor.
e. Replace the fuse or turn on the breaker.
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.
g. Press the reset button.
a. Clean the condenser.
b. Replace scraper blades.
c. Repair the leak and recharge the machine.
d. Purge and recharge the system.
e. Check pump operation for correct air/mix
ratio.
a. Clean condenser.
b. Check the adjustment and the water supply.
c. Make sure there is sufficient air space
surrounding the machine (see
"Specifications").
d. Correct refrigerant charge.
e. Replace the blower.
a. Repair leak and recharge.
a. Repair leak and recharge.
a. If worn, nicked, or missing, replace the drive
shaft seal.
b. Lubricate properly.
c. Check gear alignment.
a. Replace scraper blades.
b. Inspect air/mix pump components and
replace those found faulty.
c. Clear restriction.
d. See problem 2.
Troubleshooting