Koldwave 2AK1411M - Page 18

18
KOLDWAVE 2AK (AIRMASTER)
PROBLEM SYMPTOM POSSIBLE CAUSE REMEDY
Room air temperature
discharged through
grilles.
1. Low voltage to unit.
2. Defective motor capacitor.
3. Blower wheel rubbing
against housing.
1. Low voltage to unit.
2. Thermostat.
3. Loose or defective wires.
4. Stuck compressor.
5. Compressor shorted, open
or burned.
6. Shorted or open run
capacitor.
7. HPC holding unit off.
1. Loose compressor mounting
nuts.
2. Defective, improper or worn
rubber grommets on the
compressor mounting bolts.
3. Copper Tube vibrating.
4. Loose cabinet or internal
component
5. Loose blower wheel.
6. Blower wheel hitting shroud.
7. Blower bearing defective.
1. Leaking evaporator or
condensate pan.
2. Dirty evaporator coil.
3. Defective drain hose
(clogged or loose
connection).
4. Defective microswitch
causing condensate tank to
overflow.
5. Hole or crack in condensate
tank.
1. Determine reason and correct.
2. Replace capacitor.
3. Inspect wheel alignment and
correct.
1. Check power supply for proper
voltage at unit; ± 10% of rated
nameplate voltage.
2. Check the temperature control
for loose wires. Firm any loose
connections. Replace if
defective.
3. Tug on wires to see if they will
separate from connections.
Replace terminals if necessary.
4. Try a start capacitor across the
run capacitor momentarily
(three seconds).
5. Check for shorts, opens and
grounds. Remove and replace
compressor.
6. Remove and replace.
7. Check condenser fan.
1. Tighten.
2. Replace.
3. Adjust by bending slightly to
firm position. Separate tubes
touching cabinet or each other.
4. Check and tighten loose
screws.
5. Tighten scres on blower wheel
to shaft.
6. Adjust wheel position on motor
shaft.
7. Replace blower motor.
1. Locate leak and repair pan.
2. Check to see if the elevation is
over 11 ft. (if it is over 11 ft., a
larger condensate pump is
required). Otherwise, replace
pump if defective. Pump will
operate properly against 11 ft.
of water total head pressure on
pump. If combination of vertical
height and horizontal drain line
exceeds 11 ft. of water
pressure drop, problems may
arise.
3. Repair or replace.
4. Remove and replace.
5. Remove and replace.
Evaporator blower not
running up to full speed.
Evaporator fan runs,
but compressor does
not start.
Abnormal noise.
Water leaking from unit