Bosch
Short Cycling / Control or Sizing Issue
Unit frequently turns on and off (short cycling) without maintaining temperature.
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Possible Causes
Oversized Bosch unit for room size, Dirty filters causing rapid temperature swings, Faulty room temperature sensor placement, Incorrect thermostat settings
How to Fix / Troubleshooting
Steps:
- Clean filters: Ensure good airflow to reduce rapid temperature changes at the sensor.
- Check sensor location: Make sure the indoor unit is not directly above a heat source or in direct sunlight.
- Adjust setpoint and mode: Use Auto fan and avoid setting the temperature extremely low or high.
If short cycling continues: A technician should check sensor calibration and system sizing.
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Repair Difficulty
Easy
2/5
Required Part
Indoor Ambient Temperature Sensor
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