My lg model lw1810hr keeps going off for about 45 seconds then comes back on. it has never done this before. other than that works great help please

You have to try resetting the system. First turn the breaker off for the condenser and wait about 20 seconds. After you turn it back on the system should reset. Air Conditioning Tamarac

I assume this unit is a heat pump. It's probably the board.

Check to see if there's power to the reversing valve, if there is, try tapping it slightly with something kind of soft. You should give the reversing valve solenoid a continuity check with an ohmmeter to see if it's open or shorted.

1) Test the main switch, can be shorted, or defective contact you must replaced .see the diagram attached. God bless you

There is another way to reset the router called hard reset..

you need to hold down the reset button for 45 seconds while its turned ON and don't let it go.
After first 15 seconds, take the power cable out but still keep holding down the reset.
After second 15 seconds, insert the power cable back in but still keep holding down reset.
After last 15 seconds, release reset and turn off the router for 30 seconds.

0-15 = Power ON, Reset button Pressed in
15-30= Power OFF, Reset still Pressed in
30-45= Power ON, Reset still Pressed in

If it still doesn't work then you got a bad router, can't be fixed. :-(

Check your heating sensor and also heating element. If it's reversible valve type, check the power to RV.

ok what you should do is 1. turn off the unit.
2.Unplug the unit from the power source and disconnect all other input cable connections if possible.
3. then press and hold the power on/off button for 45 seconds. (this should discharge all electricity inside the unit allowing it to reset itself.)
4. after the 45 seconds have passed, proceed to plug back in all of the connections, then the power cable.
5. turn the unit on and hold the eject button for 30 seconds.
Now depending on when your unit was produced instead of holding the eject button for 30 seconds you may need to hold the stop button for 30 seconds and it should be fixed
what this should have done is reset the unit and reset the cd drive allowing your disk to be ejected.
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If you need further assistance please feel free to follow up with a comment and i will be here to assist you. If this assisted you please feel free to rate the comment 4 thumbs up. thanks and have a great day.

when i send a message, the message sent thing stays on the screen for seriously like 45 seconds its ridiculous...and they have already done the upgrade of the software and it didnt work

I had the same problem with my set. the problem was with the lamp bulb. They don't teel you this, but when a bulb start to go, this can happen. Iuld turn my set on and it would work. After about 45 seconds, the picture would "turn off" (still have the sound). This would last for about 45 - 60 seconds and then the picture woudl come back, but then the cycle would stsart all over again. I took a chance and purchased a new bulb (I bought just the bulb, not the bulb and housing). I took out the current bulb and housing, replaced the bulb in the current housing, and put the bulb/house back in. Problem solved! (have not had the issue since). Hope this is helpful!

Rick

Call a repairman.. Your problem would either be a cold solder or an intermettent part on your tv.