Burnham Error 5: DHW High Limit Exceeded Setpoint
Hard lockout: the Sage control's domestic hot water (DHW) sensor detected temperatures in excess of the setpoint. Requires manual reset after the cause is corrected. We diagnose and repair it across Greater Vancouver — same-day and after-hours.
Hard lockout: the Sage control's domestic hot water (DHW) sensor detected temperatures in excess of the setpoint. Requires manual reset after the cause is corrected.
Burnham fault codes can vary by model and series. Use this as a guide — the same code can have more than one cause. Our Technical Safety BC–licensed technicians read the code, confirm it against your unit's manual, and diagnose the true cause before any repair.
Likely causes of Burnham error 5
- Defective or mis-positioned DHW temperature sensor
- DHW circulator continuing to run or stuck diverter valve
- Indirect tank aquastat or control set too high
- No draw / dead-headed flow allowing overshoot in the indirect tank
What you can safely check
- Confirm the domestic hot water setpoint is at a reasonable level
- Press Reset once; if it recurs, call a licensed technician to check the DHW sensor and pump
Beyond these checks, do not open the unit or touch gas/electrical parts — BC law requires a licensed gas fitter. Call us for a proper diagnosis.
Error 5 usually leaves you without heat or hot water and can indicate a safety-related fault. Don't keep resetting it — call for priority after-hours Burnham repair.
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Parts often behind Burnham error 5
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Burnham Error 5 Repair Across Metro Vancouver
Related Burnham Safety & Overheat Codes
Frequently Asked Questions
Fix Burnham Error 5 Today
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