Heat Controller, Inc. | Portable Dehumidifier with | ||
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Complaint | Cause | Remedy |
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| Fan | Replace the fan if cracked, out of balance, or partially | |
| missing. |
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| Blower | Replace the blower if cracked, out of balance, or partially | |
Fan motor noise | missing. |
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Loose screws | Tighten them. |
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| Replace the motor if knocking sounds continues when | |
| Worn bearings | running, or if the motor hums or noise appears to be internal | |
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| while running. |
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| Voltage | Check voltage. Call an electrician if not within limits. | |
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| Check the wire connections, if loose, repair or replace | |
| Wiring | the terminal. If wires are off, refer to wiring diagram for | |
| identification, and replace. Check wire locations. If not per | ||
Compressor fan motor runs |
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| wiring diagram, correct. |
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only |
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Main PCB failure | Replace the main PCB. |
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| Capacitor (Discharge | Check the capacitor. Replace if not within 10% of | |
| capacitor before testing) | manufacturer’s rating. Replace if shorted, open, or damaged. | |
| Humidity sensor | Replace if shorted, open, or damaged. | |
| Compressor | Check the compressor for open circuit or ground. If open or | |
| grounded, replace the compressor. |
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| Air filter | Clean if restricted. |
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| Condenser and | Clean if restricted. |
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| Evaporator |
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| Fan motor | Check the fan capacitor and replace if not within 10% of | |
| manufacturer’s rating. |
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| Room structure | Ensure that the room the unit is operating in is sealed well. | |
| Close any open doors or windows. |
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Insufficient capacity | Air flow | Clean or remove any barrier that blocks the inlet/outlet air | |
| flow of the unit. |
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| Less refrigerant | Check the lines for leakage. Recycle the refrigerant, correct | |
| the leakage points and recharge. |
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| Capillary tube | Regulate the flow of capillary tube and make the evaporating | |
| temperature appropriate if the evaporator is frosted. | ||
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| The inlet and outlet valve of the compressor is damaged, | |
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| making the low pressure connected with the high pressure. | |
| Compressor | The refrigerating system is difficult to produce high pressure | |
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| and low pressure. Replace the compressor after checking | |
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| for the failure. |
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The compressor does not stop | Humidity sensor | Check and replace if the Humidity sensor, if open or | |
even if the room humidity has |
| damaged. |
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reached the set RH%. |
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Main PCB | Check and replace the main PCB |
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| Power supply | The input power supply voltage is too low. Call an electrician | |
| if not within limits. |
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The unit starts and stops |
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Humidity sensor | Check and replace if the Humidity sensor, if open or | ||
frequently. | damaged. |
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| Main PCB | Check and replace the main PCB. |
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