What It Means
Communication Loss Alarm
Likely Causes
- MSP/MPP communication wiring fault
- Loose Ethernet-style cable between panels
- Board power issue
- Damaged low-voltage communication cable
Next Checks
- Open alarms and identify which module is reporting communication loss
- Reseat MSP/MPP communication cable and inspect for corrosion
- Verify low-voltage power supply outputs before replacing boards
- If valves or relays are frozen by comm loss, resolve communication first
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.