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8. CAUSE) Shorted or open run capacitor (FIXING) Remove and replace.
9. (CAUSE) Defective tank full unit cut-out switch. (REMEDY) Check and replace.
10 (CAUSE) Condensate tank could be full, but, red con display not appearing in display window.
(REMEDY) Check tank and replace red light if defective.
PROBLEM: COMPRESSOR STARTS AND RUNS, BUT, EVAPORATOR FAN DOES NOT RUN.
1. (CAUSE) Faulty power module (REMEDY) Replace
2. (REASON) Open fan motor coil circuit (FIXING) Replace fan motor.
3. (CAUSE) Shorted or open fan motor capacitor (REMEDY) Replace capacitor.
4. (REASON) Loose or defective wires (REMEDY) Trace and repair
18
PROBLEM: INSUFFICIENT COOLING/HEATING
1. (CAUSE) Insufficient air flow through evaporator coil due to:
A. Dirty air filter in unit B. Dirty evaporator coil
C. Ice on evaporator coil D. Obstructed air intake
(REMEDY) Correct as noted:
A. Clean filter (see "Preventive Maintenance" section of this manual)
B. Clean coil with a vacuum cleaner & hose.
C. Defrost; turn on fan only.
D. Remove obstruction
2. (REASON) IMPROPER SIZING OF UNIT
(FIXING) Check to make sure unit is properly sized for load. Add supplemental unit if required.
Problem: Unit does not switch from heating to cooling or cooling to heating .
Fixing: a) Check reversing valve.
b) Check reversing valve coil.
PROBLEM: NOISY OPERATION
1.(CAUSE) Copper tubing vibrating
(REMEDY) Adjust by bending slightly to firm position. Segregate tubes touching cabinet or each other.
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