8
E
Troubleshooting
The LED is Blinking
The battery power is low.
• Check the AAA batteries to make sure:
• Each battery is installed correctly, according to (+) and (–)
listed inside the battery compartment.
• The battery contacts are clean and free of rust or
corrosion.
• The batteries are new, high-quality batteries to reduce the
chance of battery leakage.
• Make sure the AAA batteries are in proper working condition.
If in doubt, try installing new batteries.
The LED does not Turn On
There is no battery power.
• Install two new, high-quality, name-brand AAA batteries
in the stud sensor.
• Make sure each battery is installed correctly, according to
(+) and (–) listed inside the battery compartment.
The Stud Sensor is not Finding Studs
• Make sure the batteries are working.
• Make sure you have placed the stud sensor on a wall
made of drywall or another common building material.
The stud sensor will not work on walls made of concrete,
mortar, block, brick work, plaster, carpeting, foil- faced
materials, metallic surfaces, or ceramic tile.
• Make sure you have placed the stud sensor at against
the wall, the stud sensor is in a vertical position (parallel
to a door or window), and you are pressing and holding
the center button as you move the stud sensor SLOWLY
against the wall.
• Make sure the wall is not too thick. STHT77587 can be
used on walls < .75” (19mm) thick and STHT77588 can
be used on walls < 1.5” (38mm) thick.
• Make sure the wall has a smooth surface.
• Make sure the temperature is within the specied
Operating Range and Relative Humidity.
Service and Repairs
Note: Disassembling the tool will void all warranties on the
product.
To assure product SAFETY and RELIABILITY, repairs,
maintenance and adjustment should be performed by
authorized service centers. Service or maintenance performed
by unqualied personnel may result in a risk of injury. To locate
your nearest STANLEY service center, go to
http://www.STANLEYTOOLS.com.
Limited Warranty
During the period of one (1) year, if this product fails to perform
due to defects in material or workmanship, we will replace it.
DO NOT RETURN PRODUCT TO STORE. Please call
1-800-262-2161 (M-F, 8-5 EST) or visit
www.STANLEYTOOLS.com for details.
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