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lauren07Aug 6, 2025
What to do if the high pressure switch is open on my Friedrich VERT-I-PAK VHA18K34RTQ?
- NNicholas FernandezAug 6, 2025
If the high pressure switch is open in your Friedrich Heat Pump, it could be due to a faulty pressure switch or the discharge pressure being too high. Check the connection points and confirm system pressures and operation. If operating in cooling mode, ensure the outdoor condensing fan motor is running.