Tempstar
Poor Dehumidification
Tempstar air conditioner causes high humidity indoors even when cooling
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Oversized system, Blower speed set too high, Short cycling, Low refrigerant charge
How to Fix / Troubleshooting
Safety first: Turn OFF power before adjusting blower settings; many adjustments should be done by a technician.
Steps:
- 1. Set fan to AUTO: Ensure thermostat fan mode is AUTO, not ON. Continuous fan can re-evaporate moisture.
- 2. Check runtime: If the Tempstar system only runs for very short periods, it may be oversized or short cycling; see short cycling entry.
- 3. Discuss blower speed: Ask your HVAC technician to verify that blower speed is set correctly for dehumidification per Tempstar specifications.
- 4. Consider controls: A professional can add dehumidification controls or adjust CFM/ton if appropriate.
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Repair Difficulty
Medium
3/5
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