Sime Planet Dewy BFR Fault codes & diagnostics

0 fault codes with plain-English explanations, severity ratings, DIY guidance, and repair cost estimates.

Heat Only Natural Gas 1995-2008 Discontinued
GC Numbers 41-283-0341-283-11
Download the Sime Planet Dewy BFR manualThe official installation and service manual (PDF), the document these fault codes were read from. PDF

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17 operating states & engineer diagnostics

Not faults — these are normal operating states. Tap to expand.

51 Diagnostic Your boiler is simply protecting itself from freezing by temporarily warming its internal components while in standby mode. 52 Diagnostic Your boiler is struggling to automatically detect whether it should be in heating mode or summer hot-water-only mode due to a sensor signal error. 53 Diagnostic Your boiler's internal settings have become misaligned, preventing it from correctly communicating with your home's temperature controls. 54 Diagnostic Your boiler is struggling to accurately read the room temperature, which may cause your heating to turn on or off at the wrong times. 55 Diagnostic Your boiler has detected that the water inside the system is becoming dangerously hot and has shut itself down to prevent damage. 56 Diagnostic Your boiler is temporarily slowing down its heating process because it has detected that the water temperature is rising too quickly, likely due to a flow issue. 57 Diagnostic Your boiler is currently recalibrating its internal settings to adjust to your home's heating system requirements. 58 Diagnostic Your boiler is currently adjusting its internal startup settings and is not reporting a functional error, but rather confirming a configuration state. 59 Diagnostic Your boiler is struggling to heat your radiators at the expected speed, likely due to a poor connection or an internal sensor reading that something is wrong with the heat flow. 60 Diagnostic Your boiler is currently in a setup or configuration mode rather than a fault state, meaning it is waiting for a timer instruction to be programmed correctly. 61 Diagnostic Your boiler has detected that the internal settings for your hot water temperature are lower than they should be, likely due to a minor sensor error or control board glitch. 62 Diagnostic Your boiler is struggling to detect the demand for hot water, which means it may fail to heat the water when you turn on a tap. 63 Diagnostic Your boiler has entered a diagnostic information mode that shows settings on the display but does not indicate a system fault or breakdown. 64 Diagnostic Your boiler is receiving an conflicting signal from an external accessory, such as a timer or thermostat, preventing it from starting up correctly. 65 Diagnostic Your boiler is receiving a signal from an external accessory, such as a smart thermostat or weather sensor, that is preventing it from firing up. 66 Diagnostic Your boiler is struggling to read the temperature from an external sensor, which is preventing it from heating your home correctly. 69 Diagnostic Your boiler is currently running a scheduled high-temperature cycle to ensure the water inside your hot water tank remains hygienic and free from bacteria.