Bosch LV070 User Manual (English)

Questions and Answers:

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Ricardo JenkinsAug 22, 2025
Why is my Bosch LV070 Heat Pump not shifting into cooling?
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  Michelle JamesAug 22, 2025
  If your Bosch Heat Pump isn't shifting into cooling mode, check that the reversing valve solenoid is receiving 24 VAC. If it is, check the resistance of the solenoid; an open circuit may indicate a burned out solenoid. Also, check that the reversing valve thermostat wire is connected to the 'O' terminal of the thermostat and check for a contact closure between 'O' and 'R'. Finally, check that the wires from the thermostat to the unit are securely connected and that the wires from the electrical box to the reversing valve are connected.
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andrewsmithAug 23, 2025
How to reduce objectionable noise levels from my Bosch LV070?
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  Kathryn WhitakerAug 25, 2025
  If you're experiencing objectionable noise levels from your Bosch Heat Pump, ensure the duct work and grilles are properly sized for unit air flow. If the fan speed setting is too high, consult the blower performance table and reduce fan speed if possible. To address structure borne noise, mount the unit on a vibration pad. Also, install the unit in accordance with the provided instructions and adjust the unit location to prevent it from touching the structure.
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Nicholas JordanAug 25, 2025
What to do if my Bosch LV070 Heat Pump compressor isn't running and the fan is on, but I suspect low refrigerant?
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  Mr. Roger BentleyAug 26, 2025
  If your Bosch Heat Pump's compressor isn't running but the fan is, it could be due to a low-pressure fault caused by low refrigerant. Check the refrigerant pressure with a gauge set.
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thomassethAug 27, 2025
What to do if the compressor of my Bosch LV070 Heat Pump doesn't work but the fan runs and there is a freeze fault?
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  Matthew PollardAug 27, 2025
  If your Bosch Heat Pump's compressor isn't running but the fan is, it could be due to a freeze fault in the water coil caused by no or low water flow. Check the water valves and/or pumps to ensure they are operating correctly. Also, check the water coil for any blockages.
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jessicaturnerAug 27, 2025
Why is my Bosch Heat Pump compressor not running but the fan is, possibly due to high water temperature?
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  Keith MartinezAug 28, 2025
  If your Bosch Heat Pump's compressor isn't running but the fan is, it could be due to a high-pressure fault caused by high water temperature. Check the water temperature to ensure it is within the appropriate range.
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imasseyAug 29, 2025
How to troubleshoot a Bosch LV070 Heat Pump with no compressor operation but running fan, possibly due to a fouled water coil?
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  Roger SwansonAug 29, 2025
  If your Bosch Heat Pump's compressor isn't running but the fan is, it could be due to a high-pressure fault caused by a fouled or scaled water coil. Check for proper flow rate and water temperature, especially looking for a low water side temperature rise during cooling.
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Rita CallahanAug 30, 2025
What to do if my Bosch LV070 Heat Pump compressor isn't running but the fan is, and I suspect airflow issues?
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  Louis ChapmanAug 30, 2025
  If your Bosch Heat Pump's compressor isn't running but the fan is, it could be due to a high-pressure fault caused by no or low airflow. Check the fan motor to ensure it is operating correctly.
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afrazierAug 31, 2025
Why is my Bosch LV070 compressor not running but the fan is, possibly due to low airflow?
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  Isaac PaulSep 1, 2025
  If your Bosch Heat Pump's compressor isn't running but the fan is, it could be due to a low-pressure fault caused by no or low airflow. Check the fan motor to ensure it is operating correctly.
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Rachel RobertsSep 2, 2025
What to do if my Bosch LV070 compressor isn't running but the fan is on and I suspect an overloaded control circuit?
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  Ricardo DavisSep 2, 2025
  If the compressor of your Bosch Heat Pump is not working, but the fan is running, it might be due to a brown-out fault caused by an overloaded control circuit. Check the control voltage; if it's below 18V, inspect the accessories connected to the unit and ensure they don't exceed the VA draw.
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Mrs. Lauren LopezSep 3, 2025
How to troubleshoot a Bosch Heat Pump with no compressor operation but running fan, possibly due to a bad thermostat connection?
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  Kelsey HardinSep 3, 2025
  If the compressor of your Bosch Heat Pump is not working, but the fan is running, it might be due to a brown-out fault caused by a bad thermostat connection. Check that the thermostat wiring is of the proper gauge and length, is undamaged, and that all connections at the thermostat and heat pump are secure.