17
KOLDWAVE KOMPAC SERIES (KOOLETTE, KOMPAC, AND KING KOMPAC)
PROBLEM POSSIBLE CAUSE REMEDY
Insufficient heating
(heat pump models only)
Noisy operation.
Water leaking from unit.
Unit give electric shock.
1. Electric water bypass valve closed
or not operating.
2. Water inlet temperature too cold.
3. Reverse cycle valve stuck open.
Solenoid coil not switching valve to
heating.
4. Thermostat not set for heating
1. Loose connection in electrical
circuit.
2. Air restriction.
3. Partial restriction in refrigeration
system.
4. Water regulating valve inoperative
or restricted.
5. Water temperature too high.
6. Water to unit not turned on, or
adjusted correctly.
1. Copper Tubing vibrating.
2. Loose cabinet or internal
component.
3. Loose blower wheel.
4. Machine vibrating out of level.
5. Blower motor bearing defective.
6. Blower wheel hitting housing.
1. Leaking drain pan.
2. Defective condensate pump or
excessive lift on pump.
3. Loose evaporator drain or
condensate pump hose.
1. Grounded electric circuit.
1. Check 115 volt circuit for power at
valve. Also see if valve coil is open
(use ohmmeter).
2. Check water inlet temperature using
a thermometer. Inlet water
temperature should never be below
50°F.
3. Check for power to solenoid coil, to
verify that coil is functional. If the
unit still does not switch to heating,
replace reversing valve, evacuate
and recharge unit.
4. Refer to “Check of Unit Operation”
section.
1. Trace and repair.
2. If air filter is dirty or if another air
restriction exists, determine
problem cause and control.
3. Restriction can be located by
inspecting refrigerant lines for
temperature changes. Remove
restriction, evacuate and recharge.
4. Flush or blow dirty out of valve if
necessary.
5. “Water Out” not to exceed 110°F.
6. Turn water on before starting unit.
Adjust flow rate if necessary.
1. Adjust by bending slightly to firm
position. Separate tubes touching
cabinet or each other.
2. Check and tighten loose screws.
3. Tighten screws on blower wheel to
shaft.
4. Level unit base.
5. Replace blower motor.
6. Adjust wheel position on motor
shaft.
1. Locate leak and repair.
2. Check to see if elevation is over 11
ft. (if it is over 11 ft., a larger 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, problem
may occur.
3. Tighten connections.
1. Test with an ohmmeter or high
potential tester. Determine what is
grounded and replace or rewire.
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