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Ruben JonesSep 15, 2025
What to do if my Bosch Heat Pump turns off on low pressure control?
- SSarah FarleySep 15, 2025
If your Bosch Heat Pump is turning off due to low pressure, here are some possible causes: * **Low Suction Pressure:** In cooling mode, this can be caused by a lack of or inadequate airflow, or excessively cold entering air temperature. Check for an inoperative blower, clogged filter, or restrictions in the ductwork. In heating mode, it can be caused by a lack of or inadequate water flow, or excessively cold entering water temperature. Check for a scaled or plugged condenser. * **Low Refrigerant Charge:** The unit may be low on refrigerant. Check for refrigerant leaks, repair them, evacuate the system, and recharge with the factory-recommended charge. * **Defective Low Pressure Switch:** Check for a defective or improperly calibrated low-pressure switch.
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