Error Code Fd on your Rheem Heat Pump (551180) indicates the activation of the system’s freeze protection feature. This protection occurs when the unit detects extremely low temperatures that could damage components due to freezing.
First, ensure the electrical supply to the water heater is switched on, as the freeze protection relies on electricity to operate effectively. Close any open taps and ensure the system remains powered to allow the freeze protection to function correctly. If this error persists or frequently occurs, professional evaluation is needed to ensure your system operates safely. Contact Hilton Plumbing for assistance.
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