Craftsman 139.53225SRT Owner's Manual page 35

For residential use only
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Having
a Problem?
(continued)
Probable
Cause
& Solution
I. tf the opener lights blink, check the safety reversing sensor, See page 23,
won't close:
2. It the opener _ights do not b_ink and: it is a new installation
check the down force.
See Adjustment Step 2, page 29. For an existing installation, see below,
Repeat the safety reverse test after the adjustment
,is complete;
me door reveres
for
1 Is something obstructing timed@or?Puli the red emergency retease handle. Operate
the door manua{ly. It it is unbalanced or binding, cali for professional garage doer
sewice
don't blink:-
2, Clear armyJoe or snow from the garage floor area where the door closes.
3. Review the force adjustment procedures on page 29.
4. _fdoor reverses in the tufty ctosed posit on, decrease the travel limits (page 28),
Repeat safety reverse test a£ter a_iustments
to force or travel limits.
The nc_d
for occasional
adjustment
of the force and limff ,settings is normal
Weather
conditions
in particular
can affect door travel.
_e door rever_s
for
Check the safety reversing sensor_ Remove any obstruction or a_ign _he receiving eye
See page 23.
biiek
for S _ds
.... don't turn on:
Replace the light bulbs (75 watts m_imum)
Use a standard neck garage door opener
bulb it regular bu{b bums out
, , don't turn off:
/s the Light feature on? Turn it off.
The opener strains or
The door may be out of bal&_'_;eor the spdngs are broken C_ose the d_r
art_ u_> the
maximum
force is
emergen@, televise to di_;onne_ the trolley, Open and cio_ _e d_r m_-_ual/y. A property
beJan_d d_r will stay in _y p®int of _ave_ while _ing sup_d6<l entireb/by its spdr_s. If it
door:
d_s not_disconnect _e o_ner _nd c_/I a professional ga_@e de_r _eviceman, Do not
increase the force to o_te
t,5e o_nero
The opener motor
1 The garage door spdngs are broken, See above.
hums briefly,
then
2, It the prob_ern _rs
on the first operation of the opener, dc_r may be k_kc_£ DL_sbte
won't work:
the door/_k:
If the chain was removed and reinstaIl_J, the motor may be out of phase.
Remove t_hechain; cycte the motor to the down _aition
Obsewe the drive spr_Ket.
When _ turns in a citY, vise direction e_d stops in _ne down _s_ion,
reins_!_ the ehan,
Repeat the safety reverse test after the adjustment
is complete,
1, U99 the emerger>_y re}e_e to dis@nne_ iXe trolley. _r_e _@r _
_ o[_en_ a_.t cbs_S
operate due to
manually W_en lf_e r_wer is restore, pre_ __e W_[ _ntrot
pash _
&qd troliey wilt
power failure:
automaticJy
r_nned
(unle_ trolley is in _;ko_
posi_on.) See _ge 32,
2 The Emergency
Key Re_ease accessory (for use on garages with no service d_r)
disconnects the trolley from outside the garage in case of power failure.
The chain droops
It is norma_ for the chain to droop slightly in the c!osed d_r
position° Use the
or sags:
emergency release to disconnect the trolley, It the chain returns to norma_ height when
the trolley is disengaged and the door reverses on a one@_ch board, no adjustments
are needed (see page 11)
35

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