No Heat Pump Operation
- Check SV spa controller settings. Confirm that H.PMP setting has not disabled the heat pump.
- Check if a heat pump error code is present. The error should scroll across the screen every 30 seconds & the display should show a hammer & spanner symbol
- Check the heat pump thermistor reading to ensure the spa & heat pump are communicating. 00 = No communication
- Replace data cable if problem unresolved (use double‐shielded CAT5/CAT6 Ethernet cable)
- Confirm ambient air temperature is within heat pump operational limits of -2°C – 40°
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