Jaytech CK1500 Manual page 10

function. When this function works, you can't open the door until press the
"unlock" button first.
Press and hold SET, it displays "P1", press UP four times, it displays "P5", press SET to show
current situation. press UP, it displays "Lc", lock door function works, press DOWN, It displays
"uL", the lock door function doesn't work. Press SET to confirm the function you need.
7.Owners' Guide
7.1 Attention in use
7.1.1 Use the transmitters only when door is in sight. Do not stand or walk
under a moving door. The transmitters should be kept out of reach of
children.
7.1.5 Check at least twice a year to make sure the door is properly
balanced and that all working parts are in good working condition. Have
the door professionally serviced annually.
7.2 Examination Guide
Problem
The door is noisy
>>
Causes
Lack of lubrication or servicing
10
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Solution
Call professional service