SplashLens / Raypak / Raypak Gas Heater

Raypak E4: Temperature Sensor Fault

Raypak E4 reference for Raypak Gas Heater: likely causes, next checks, and manual-verification reminders for pool service techs.

Raypak Raypak Gas Heater MEDIUM Certified tech recommended

What It Means

Temperature Sensor Fault

Likely Causes

Next Checks

  1. Test sensor resistance (~10kΩ at 77°F)
  2. Replace if out of spec

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 Raypak 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.