Sundance Spa Error Code Troubleshooting Guide

Flow/Pressure Switch Issues

FL1: Flow/pressure switch not closed when pump is running.
Troubleshooting: Clean/replace filter, check for blockages, inspect pressure switch.

FL2: Flow/pressure switch closed when pump is off.
Troubleshooting: Check for debris in pressure switch, test for electrical faults.

FLO: Pressure switch issue (clog/debris).
Troubleshooting: Clean filter, inspect plumbing for obstructions, verify switch function.

LF: Persistent low flow.
Troubleshooting: Clean filter, ensure proper water level, check pump function.

HFL: Heater flow issue (temperature sensor discrepancy).
Troubleshooting: Clean filter, confirm adequate flow, inspect temperature sensors.

Heater and Temperature Sensor Issues

Sn1: High-limit sensor malfunction (spa shutdown).
Troubleshooting: Check sensor connections, reset spa, replace faulty sensor.

Sn3: Heater deactivated.
Troubleshooting: Inspect heater circuit breaker, test heater element for continuity.

OH/OHH/OHS: Overheating detected.
Troubleshooting: Allow water to cool, ensure proper flow, check thermostat settings.

TH1/TH2/TH3: Temperature probe failure.
Troubleshooting: Test sensor resistance, replace defective probes.

Other Common Errors

pd: Power supply on backup battery.
Troubleshooting: Verify main power source, reset control panel.

Cool: Water temperature 20° below set point.
Troubleshooting: Adjust heater settings, confirm heater operation.

ICE: Freeze risk detected.
Troubleshooting: Ensure heater is functional, increase temperature, insulate equipment.

ILOC: Spa deactivated (control lock).
Troubleshooting: Unlock via control panel, reset system.

General Troubleshooting Tips

Maintenance: Regularly clean filters and check for debris in pumps/plumbing.

Sensors: Inspect wiring and connections for corrosion or damage.

Power: Reset the spa by turning power off/on at the breaker.

Call Live Tech 858-210-8062.  10AM-1PM San Diego Time.  Have ready Year, Make, Model of your hot tub.