What It Means
Heater Communication / Control Fault
Likely Causes
- RS-485 cable fault between IntelliTouch and MasterTemp/Max-E-Therm
- Heater board failed
- Heater not getting 24VAC from IntelliTouch relay
Next Checks
- Check 24VAC output at IntelliTouch heater relay when heat is called
- Test RS-485 cable from IntelliTouch to heater fireman switch interface
- Inspect heater control board for burn marks or moisture
- Re-pair heater in IntelliTouch programming (Heater → Protocol → Configure)
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 Pentair Automation (IntelliTouch / EasyTouch) 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.