What It Means
Thermostat Failed Low
Likely Causes
- Temp sensor open circuit (reads too low)
- Damaged sensor wiring
- Defective control board
Next Checks
- Inspect sensor connector at control board
- Check sensor wire continuity
- Replace sensor if resistance reads infinite (open)
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.