PACKAGE AIR CONDITIONER VOLTAGE LIMITS
NAME PLATE RATING | MINIMUM | MAXIMUM |
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380 V | 342 V | 418 V |
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220 V | 198 V | 242 V |
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380 - 415 V | 342 V | 456 V |
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No cooling and heating operation performed
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| WHAT TROUBLED | COMPLAINTS | HOW TO CHECK | REMEDY |
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Other parts than the unit | Electric supply interrupted | Measure it with a tester in | Repair a switch box and | ||
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| Defective power wiring Cut | case that the same | ||
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| of power fuse | power source is supplied | is relative instrument. | |
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| to other equipment than | Replacement of fuse | |
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| the unit, what and where | Request a power | |
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| trouble can be discovered | ||
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| supplier to repair. | ||
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| by checking the operation | ||
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| of other equipment. |
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| Too low voltage | Measure it with a tester. | Check the power source. | |
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| Use a thick cable if | |
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| necessary. | |
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Magnetic switch for | Control point is on | Make | Replace it if necessary. | ||
compressor & fan motor | condition of "OFF" due to | measure it with a tester. |
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| trouble. |
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Operating switch | Troubled or defective | Check it with the eyes or | Repair or replace it. | ||
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| contactor | tester. |
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Protection devices | Opened the contact point | Check it with the eyes or | Discover the trouble | ||
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| with trouble | tester. | cause and push the rest | |
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| button. | |
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2) Only blowers do not work
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| WHAT TROUBLED | COMPLAINTS | HOW TO CHECK | REMEDY |
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| Air volume change over | Troubled or defective | Check it with the eyes or a | Repair or replace it. | |
| switch | contact point | tester |
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| Capacitor | Defected | Check it with a tester. | Replace it. | |
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