Craftsman CMHT77620 Mode D'emploi page 8

Troubleshooting
E
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 flat 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. CMHT77620 can be
used on walls < .75" (19mm) thick and CMHT77621 can be
used on walls < 1.5" (38mm) thick.
• Make sure the wall has a smooth surface.
• Make sure the temperature is within the specified
Operating Range and Relative Humidity.
8
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 unqualified
personnel may result in a risk of injury. To locate your nearest
CRAFTSMAN service center, go to http://www.CRAFTSMAN.com.
Limited Warranty
Duration of coverage may vary; check product instructions for
precise length of coverage.
WARRANTY SERVICE
To obtain the warranty coverage stated below, return a defective
product with proof of sale to the retailer from which it was
purchased.
CRAFTSMAN LIMITED WARRANTY
FOR ONE YEAR from the date of sale, this product is warranted
against defects in material or workmanship.
WITH PROOF OF SALE, a defective product will be replaced free
of charge.
This warranty does not cover expendable parts that can wear out
from normal use within the warranty period.
This warranty applies for only 90 days from the date of sale if this
product is ever used while providing commercial services or if
rented to another person.