Craftsman 139.53225SRT - Manual (Page 35)

Having a Problem?
(continued}
Situation Probable Cause
&
Solytion
The door opens but
won't close: 1. If the opener lights blink, check the safety reversing sensor, ô.m p vje 23.
2, If the opener lights do not blink arrd it is a new installation, check the down force.
See Adjustment Step 2, page 29. Fo-r an existing installation, see below.
Repeat the safety rmerse lest after ttm adimtmeni is complete.
The -door rewemm for
no apparent reason
and &/xmr MgMs
don't blink:
1. Is something obstructing the door? Pull the red emergency release handle. Operate
the door manually. If it is unbalanced or binding, call for professional garage door
service.
2 Oloar any ice 'v snow itom tfse garage tOcr ,шза whore the door dose:',.
;3 fd.-ivHjw üiíi .idîij'Umf'Miî proiVjfiiri;.'-, on page ?f,*,
4 If doiu roronm-, ici i!ie iuHy doüud p.>s\Uo(\. dor rea ju Ihc; travel (раус 2Щ
Repeat safety reverse test after adjustments to force or travel limits. The need
for occasional adjustment of the force and limit settings is normal Weather
conditions in particular can affect doar travel.
The door reverses for
no ap^mnt rmson
and MgMs
blink for 5 seconds
after mwerslng:
Check the safety revefsing sensor. Remove any obstruction or align the recoiving eye.
See page 23.
The opmer fights:
.. don't turn on:
Replace the light bulbs (75 watts maximum). Use a sfanda/d леек gamge door opener
butb if regular bulb bums out.
... don't turn о fi­
ls the Light feature on? Turn it off.
Tho opener strains or
maximum force is
needed to operate
door:
Tf« door n;.ry hv on! of balança nr the орпгнгг ate hrokon Close the door and use the
arrM.aqericy rnWw lo cli-w.t.>ru'V4.1 the îroîtev Оргт, ,'*ги„[ tíoae the Ьдаг manuallv. А properly
b.ttunceíl do'.'.r wiü aíay tf¡ any potni ut traval wfstlo Lw-ing ouppfjftcd entirnly by rtt; :д;'Пгк];;, ¡f it
üne.'-, not, Пг’,connect the ofXíner and cxiil d г/Г'/.-кгуропа! garage drxjr &er,aceman Da not
increase the force to operafe the opener.
The opener motor
hums briefly, then
won 'i work:
1 Thu garage скал r.prings are broken. Se;y above
2. It îhG problem axtira on tire first operation of tfic opener, door may bo tekt'd Ov-ahle
the door кк:к. 1} ttie chain was removed and feinstallcci, the motor may ho out of phase.
F-ternovo îfie cfiain; cycle the nv)tor io tiio down position Observe the drive sfXFXiket,
7/hen It tuma m a dockwico direction arid stops in the down position, reinstrili îfie cfiain.
Repeat the safety reverse test after the adjustment is complete.
The &p
0
mr won't
operate' due to
power failure:
t U.v; the ' rrtcrq(;fH7/ rnluaco to dtxonniv.i ttic irolley, Thf. Ьеюг can tc opottfxj and douixl
rraniniU Whn 1 tt'o ^v^wor to rodixi -d, prerx. tfw Wnfl t.tontroi push bar and trolley will
automática.!'/ mronnret íunlefs trolley m m kvikout position ) See page 32
2 The Emorfjency Key Reîtiace ассаоьогу (fur uso on garages with no service door)
sJisconnoidG tbr trolky from outside the q.irage in rase of power failure
The citain droops
or sags:
It is noirnai loi the chain to droop slightly iti the dosed door position. Use the
emergency release to disconnect !ho trolley. If the chain returns to normal height when
the tfotloy is disengaged and the door reverses on a one-inch board, no adjustments
are needed (see page 11).
35