BoilerFaultCodesIdeal BLANK DISPLAY Fault Code
Also written as BLANKDISPLAY — same fault.
The Ideal BLANK DISPLAY fault code means: your boiler has no power or the control screen has failed, meaning the heating and hot water will not work until electricity is restored to the unit.. It appears on 4 Ideal models in our database.
Technical description: Blank Display.
What causes the Ideal BLANK DISPLAY fault?
This fault occurs when the boiler's control system loses electrical power or the communication between the internal components is broken. The most common reasons are a blown internal fuse caused by a temporary power surge or a hardware failure within the main circuit board or display screen.
This issue can be more common during the winter months or during stormy weather, when power fluctuations and grid surges are more likely to occur.
DIY fix possible
Check if other appliances in the house are working to rule out a general power cut.Inspect your main fuse box/consumer unit to see if the heating circuit tripper switch has flipped to 'OFF'.Check the fused spur switch (usually a red neon light switch near the boiler) to ensure it is turned on and the fuse hasn't blown.
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A cover plan would handle faults like BLANK DISPLAY: no call-out fees, no surprise bills.
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Ideal models that show the BLANK DISPLAY fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Ideal BLANK DISPLAY fault code information on this page is sourced and cross-checked against the official Ideal service / installation manuals for each affected model.
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026