SUPER DIGITAL
SUPER DIGITAL
SUPER DIGITAL
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Check<br />
code<br />
Outdoor<br />
LED display<br />
<br />
Check and troubleshooting<br />
(Item without special mention Indicates part of outdoor unit.)<br />
[P20]<br />
<br />
¡ l<br />
¡ l<br />
¡ ¥<br />
l l<br />
¡ ¥<br />
¡ ¡<br />
[High pressure protective operation]<br />
Is valve fully opened?<br />
YES<br />
Reset the power supply<br />
and then perform test run<br />
matching to the season.<br />
NO<br />
Cooling season<br />
Cooling operation<br />
Open valve fully.<br />
Heating season<br />
Heating operation<br />
Is there no problem<br />
on outdoor TL sensor?<br />
(Measurement of resistance value)<br />
YES<br />
NO<br />
Replace sensor.<br />
Is there no crack or<br />
loosening of outdoor fan?<br />
NO<br />
YES<br />
Check outdoor fan.<br />
Defect → Replace, retightening<br />
Does not the outdoor fan<br />
perform abnormal operation?<br />
NO<br />
YES<br />
Check the same items as<br />
[P22] error.<br />
Is there no element<br />
which interfere heat exchange<br />
of outdoor unit?<br />
• Clogging of heat exchanger<br />
• Short circuit<br />
YES<br />
NO<br />
Eliminate interfering element.<br />
Check overcharge of refrigerant, clogging of cycle,<br />
broken pipe, abnormal overload, etc.<br />
Defect → Correct defective position.<br />
Does indoor fan<br />
normally operate?<br />
NO<br />
Are indoor fan motor<br />
and connector normal?<br />
NO<br />
YES<br />
YES<br />
Repair defective position.<br />
Are resistance values<br />
of indoor TC and TCJ<br />
sensors normal?<br />
NO<br />
Replace<br />
sensor.<br />
Is there no element which<br />
interfere heat exchange of indoor unit?<br />
• Clogging of filter<br />
• Clogging of heat exchanger<br />
• Short circuit<br />
NO<br />
YES<br />
YES<br />
Check indoor P.C. board.<br />
Defect → Replace<br />
Eliminate interfering element.<br />
Check overcharge of refrigerant, clogging of cycle,<br />
broken pipe, abnormal overload, etc.<br />
Defect → Correct defective position.<br />
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