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Nancy WileyAug 3, 2025
Why is my Bosch Heat Pump unit off on high pressure control?
- KkatherinecoxAug 3, 2025
The Bosch Heat Pump may be shutting off due to high pressure. This can occur if the discharge pressure is too high because of inadequate water flow, the entering water temperature is too warm, or the condenser is scaled or plugged in cooling mode. In heating mode, it may be due to lack of air flow because the blower is inoperative, the filter is clogged, or there are restrictions in the duct work. Also, the unit might be overcharged with refrigerant, or there may be a defective or improperly calibrated high-pressure switch.
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