The alarm operates from the door switch which also turns light on. When refrigerator door is open for a set period the alarm sounds, fault is possibly either door switch or alarm panel. Can you operate door switch manually while door is open to see if light goes out? If light stays on then you have a faulty switch.
SOURCE: how do you bypass sensors for craftsman garage door opener
The sensors are safety features so the door won't close on someone. When you hold the wall button down it's over riding the sensors, therefore it works when you hold down the button but will not work when you tap it or use the remote. Line up the photo cells so they stop blinking. If they're blinking they think something is in the way...hence not closing. If you can't get them to line up and stop blinking one may be defective. Contact the manufacturer and see if you can purchase a replacement set. They usually aren't too expensive, maybe $20/$40.
SOURCE: won't open...
Hey this is a great site!
I was having a similar problem with my Toshiba SD-K860. Bobbyj, thanks for the link to the SD-4900 service manual, it was extremely helpful even though it was a different model. I could not find an emergency eject pinhole, and leaving the unit unplugged for a while did not help (two suggestions found on other sites), so I simply took the whole thing apart, got the disc out, found the eject slider on the bottom of the tray, massaged the tray open and closed, and put everything back together again. The connections were solid and the belt was in tact so everything seemed to be fine. Once I reassembled and powered it back up it worked again!
I posted a more detailed solution on my problems to solve site, which is similar to this one:
http://problemstosolve.com/solved/toshiba-sd-k850-wont-eject-solved/
SOURCE: GARAGE DOOR OPENS BUT WILL NOT CLOSE AUTOMATICALLY
is bulb on motor flashing 10 times. then you have electric eye problem. otherwise, sounds like you need to increase down force a hair. adjustement is on logic board, right knob.
SOURCE: kitchen aid open door sensor alarm keeps going off door is closed
Open door and turn power off then on twice. Then press the Overtemp reset.
SOURCE: Does not go through cycle. Door open light
Your door latch wax motor needs replacing.
cut and paste this factory service manual.
https://secured.whirlpool.com/Service/SrvTechAdm.nsf/2cd44500d572193285256a45004fd9d6/6545d78b3f479480852571650061b1ba/$FILE/8178558.pdf
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