BoilerFaultCodesJohnson Starley 0.59 Fault Code
Also written as 059 — same fault.
The Johnson Starley 0.59 fault code means: your boiler's internal computer is having trouble processing information and needs to be reset to try and clear the error.. It appears on 1 Johnson Starley model in our database.
Technical description: 88
DIY fix possible
Locate the reset button on your boiler control panelPress and hold the reset button for 3-5 secondsWait 5 minutes for the system to restart and monitor if the fault returns
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Johnson Starley models that show the 0.59 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Johnson Starley 0.59 fault code information on this page is sourced and cross-checked against the official Johnson Starley service / installation manuals for each affected model.
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026