Troubleshooting Guide; Temp-Cool Unit - Temp-Cool TC-18B Owner's Manual

Troubleshooting Guide

Problem
Unit does not run
Evaporator fan runs but
compressor and con-
denser fan do not.
TEMP-COOL Owner's Manual
™
Cause
Power interruption
Condensate tank-full (tF indicated)
Thermostat set incorrectly
Thermostat inoperable
Thermostat displays error code
rE
FE
CF
Fr
tF
Electrical Panel Problem
- 24 volt transformer defective
- Fuse blown/overload tripped (TC-60B)
- Loose wire
- Contactor coil defective
- Contactor stuck open, burned or dirty
Thermostat satisfied
Thermostat is in the compressor start delay
mode
Thermostat set for the wrong MODE
Condensate jumper plug or condensate
pump not installed
High pressure switch tripped or defective
Loose or defective wires
Shorted or open run capacitor
Defective compressor
Remedy
Check external power supply. Reset LCDI cord
control. Check circuit breakers and fuses. Re-
place or reset if necessary.
Empty tank
Check Mode setting and temperature setpoint
vs. room temperature. Reset if necessary.
Check for display on thermostat. Press power
switch and mode switches to determine if
thermostat responds. Replace thermostat if
necessary.
room sensor failure Repair or replace room sensor.
freeze sensor failure Repair or replace freeze sensor.
compressor failure Check for compressor problems.
coil freezing Space too cold or refrigerant level low.
condensate tank full Condensate tank must be emptied
- Replace transformer.
- Check and replace or reset if necessary.
- Check and tighten if necessary.
- Replace contactor.
- Repair or replace contactor.
The evaporator runs anytime the thermostat is
on. The compressor and condenser only run if
there is a demand for cooling.
Make sure there is a call for cooling then wait at
least five minutes for compressor to start.
Set MODE to COOL.
Install jumper if a condensate tank is being
used. Attach pump if pump is used.
Press reset button on high pressure switch.
Replace switch if necessary.
Check for loose or shorted conductors. Secure
contact between wires and connectors. Repair
or replace as required.
Replace capacitor.
Check for shorts, opens and grounds. Com-
pressor replacement should be done by a
service technician.