What does Accutemp Err mean?

On the AccuTemp XLR8 heated platen, the digital control shows "Err" when the control board cannot detect a temperature sensor connection. The platen uses three RTD sensors (front, middle and back) wired to control-board terminals J3, J4 and J5.

What does Accutemp OVERTEMP mean?

The OVERTEMP warning light on an AccuTemp Evolution steamer means the steamer has overheated. The most common reason is that it ran out of water, so the heating element kept driving temperature up with no water to boil.

What does Accutemp LOW WATER mean?

The LOW WATER warning light on an AccuTemp Evolution steamer means the steamer is low on water or the water sensors need to be cleaned.

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By Octavian Ghindea

Co-founder & CTO · Reviewed July 2026

What error codes does Accutemp display?

Err

Control board does not detect a temperature sensor (RTD) connection

OVERTEMP

Steamer has overheated, often because it ran out of water

LOW WATER

Steamer is low on water or the water sensors need cleaning

HIGH WATER

Too much water in the steamer (connected models only) - do not open the door

Common questions about Accutemp equipment

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