Error Code EC on your Rheem Heat Pump (551180) indicates an over-temperature fault. The system detects the water temperature is too high, causing both the heat pump and electric backup heating to stop operating temporarily until the temperature falls to safe levels.
For your safety, immediately turn off the power at the isolation switch and close any hot water taps. Allow the water heater to cool down. This issue may involve malfunctioning sensors or thermostat components that require professional attention. Contact Hilton Plumbing promptly to arrange a detailed inspection and resolution.
Book online or call us directly at 1300 872 343.
