D.81 Low
This is an information code rather than a fault, showing you the total number of hours your boiler has spent heating up your water.
Technical description: Operating hours hot water generation
Typical repair cost: £0 (including labour)
DIY fix possible
Press the 'Back' or 'i' button to exit the status menuMonitor your boiler for any actual fault codes starting with 'F'No action is required as this is a normal operational reading
Protect yourself from future repair bills
A boiler cover plan would cover faults like D.81 — no call-out fees, no surprises.
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