BoilerFaultCodesIdeal Flashing lamp Fault Code
Also written as FLASHINGLAMP — same fault.
The Ideal Flashing lamp fault code means: your boiler has detected that the water inside the unit is getting too hot, so it has safely shut itself down to prevent damage.. It appears on 1 Ideal model in our database.
Technical description: Excessive temperature on primary circuit
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
Find a Gas Safe engineer
Search the official register for a qualified engineer in your area.
Gas Safe Register →Avoid the next call-out bill
A cover plan would handle faults like Flashing lamp: no call-out fees, no surprise bills.
Affiliate links. We may earn a commission at no extra cost to you.
Ideal models that show the Flashing lamp fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Ideal Flashing lamp 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