What It Means
Thermostat Failed High
Likely Causes
- Sensor/thermostat stuck or shorted (reads temp too high)
- Control board failure
- Damaged temperature sensor wiring
Next Checks
- Check wiring harness connections to temp sensors
- Test thermostat resistance (should read ~10kΩ at room temp)
- Replace thermostat if reading out of range
Verify Before Repair
SplashLens is a field reference, not a repair guarantee. Confirm the visible code, exact model, and current manufacturer procedure before replacing parts, bypassing safeties, or quoting a customer.
SplashLens is independent and is not affiliated with Hayward or other equipment manufacturers.
Use SplashLens At The Pad
Manual error-code lookup works after the app has loaded once. AI scan features require internet and should be treated as a second set of eyes.