What It Means
Stack Flue Overheat
Likely Causes
- Blocked flue or exhaust
- Recirculating flue gases (bad location / near wall)
- Combustion air starvation
- Dirty burners
Next Checks
- Clear any debris from flue outlet
- Check minimum clearances to walls/enclosures
- Inspect burners for carbon buildup
- Ensure adequate combustion air supply
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.