Troubleshooting: Cooling Sequence of Operation
COOLING SEQUENCE OF OPERATION | |||
POWER ON |
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| YES | SIGNAL POLARITY REVERSED. | |
| CONTROL WILL CONTINUE TO CALL FOR COOLING | ||
IS POLARITY REVERSED? |
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| IN THIS CONDITION. | ||
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| STATUS ERROR CODE 5 + 4. | |
NO |
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| NO | SIGNAL IMPROPER GROUND AT LED. | |
IS THERE | CONTROL WILL CONTINUE TO CALL FOR COOLING | ||
| |||
PROPER GROUND? |
| IN THIS CONDITION. | |
|
| STATUS ERROR CODE 5 + 3. | |
YES |
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| |
THERMOSTAT CALLS FOR FIRST−STAGE COOL. |
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COMPRESSOR AND CONDENSER FAN |
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ENERGIZED. |
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INDOOR BLOWER ENERGIZED ON FIRST STAGE |
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COOL SPEED AFTER 2 SECOND DELAY. |
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| YES | COMPRESSOR AND CONDENSER FAN DE−ENERGIZED. | |
FIRST−STAGE DEMAND FOR COOL SATISFIED? | |||
INDOOR BLOWER DE−ENEGIZED. | |||
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NO |
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THERMOSTAT CALLS FOR SECOND−STAGE COOL. |
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INDOOR BLOWER RAMPS UP TO SECOND−STAGE COOL SPEED. |
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SECOND−STAGE DEMAND FOR COOL SATISFIED? |
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YES |
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UNIT RETURNS TO FIRST STAGE COOL |
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