SHARK·FAULT ERR 27 WARN
Shark Error 27 — Inclination error
Severity: Warning — robot refuses to work on what it reads as a sloped surface PowerDetect
DIRECT ANSWER
Error 27 means the robot detects an un-level surface. Put the dock on level floor, start missions from level ground, and wipe the cliff sensors — they feed the tilt reading.
#meaning · #causes · #fix — link straight to any section
COMMON CAUSES · RANKED
1
Dock on a slope or uneven floor MOST COMMON
Shark's quick fix starts with the dock — a base on a ramp or thick rug tilts every mission start.
2
Mission started on an incline
Starting the robot on a threshold or ramp makes its first sensor reading a slope.
3
Dirty cliff sensors skewing the reading
The official procedure has you wipe the cliff sensors — dust makes level floor read as tilted.
HOW TO FIX IT
No battery or electrical work involved in this fix.
Relevel the dock
Move the charging base onto firm, level floor and keep ramps and rug edges out of the approach.
Wipe the cliff sensors
Power off, turn the robot over, and wipe the cliff sensors under the bumper with a clean, dry cloth.
Restart from level ground
Start the next mission from the dock on level floor, and add no-go zones over ramps or thresholds that keep triggering the error.
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Sources
Corrections
Spotted an error? Report a correction — fixes ship within 48h and are logged on this page.