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Stephanie ReynoldsAug 17, 2025
What to do if my Filtermaster HP3.8B Heat Pump shows high pressure protection?
- SStephen MercerAug 17, 2025
If your Filtermaster Heat Pump displays a high pressure protection error, it indicates that the refrigerant system pressure is too high. You should check the pressure gauge and increase the water volume to resolve this issue.

