Koldwave 2AK1411M - Page 17

17
KOLDWAVE 2AK (AIRMASTER)
TROUBLE SHOOTING GUIDE continued
PROBLEM SYMPTOM POSSIBLE CAUSE REMEDY
Entire unit does not
operate.
Unit starts, but stops
immediately.
Unit operates, but
stops after a few
minutes.
Insufficient air flow
through evaporator.
Evaporator discharge
air not cool.
Compressor motor not
running.
Evaporator blower
motor not running.
1. Power Interruption.
2. Defective tank full unit cut-
out switch.
3. Condensate tank could be
full, but red light might be
defective.
1. Defective compressor
overload relay.
2. Defective compressor motor.
3. Defective run capacitor.
1. Defective compressor motor.
2. Defective overload relay.
3. Defective high pressure
switch.
4. Loose connection in
electrical circuit.
5. Manual reset button out on
HPC.
6. Unit overcharged.
7. Dirty condenser coil and
filter.
8. Condensate tank right at trip
point.
9. Condenser fan running at
high ESP.
1. Improper size of unit.
1. Dirty air filter in unit.
2. Dirty evaporator or
condenser.
3. Ice on evaporator coil.
4. Obstructed intake.
5. Defective condenser fan
motor or its capacitor.
1. Refrigerant leak.
1. Defective compressor motor.
2. Defective compressor
capcitor.
3. Defective overload relay.
4. Defective thermostat.
5. Defective wiring connection.
6. Defective wiring.
1. Defective fan motor.
2. Defective fan motor
capacitor
3. Defective wiring connection.
4. Defective fan speed switch.
5. Defective thermostat.
1. Check external power supply.
2. Check and replace.
3. Check tank and replace red
light if defective.
1. Replace after checking current.
2. Remove and replace.
3. Check and repalce.
1. Check and replace.
2. Replace after checking current.
3. Check cut-out setting and
replace if defective.
4. Trace loose wire(s) and firm up
connection.
5. After diagnosing and correcting
cause for unit trip out, begin
unit operation by depressing
the red button located in the
back panel.
6. Purge some refrigerant.
7. Clean filter and condenser coil.
8. Empty tank.
9. Check fan speed and correct.
1. Check if the unit is undersized
for the load, Add supplemental
unit(s).
1. Clean air filter.
2. Unusual condition requires
cleaning.
3. Defrost. Use fan only by
depressing the upper rocker
switch to right.
4. Remove obstuction.
5. Check and replace.
1. Locate leak and repair.
Evacuate and recharge.
1. Check and replace.
2. Check and replace.
3. Check and replace.
4. Check and replace.
5. Check and repair.
6. Check and replace.
1. Check and replace.
2. Check and replace.
3. Check and repair.
4. Check and replace.
5. Check and replace.
Unit does not
operate.
Insufficient cooling.
No cooled air discharge.