Jump to content


Use this Search Box to Find Appliance Repair Help Now
Need help finding your model number?
365-day return policy on all parts purchased here, even electrical parts that have been installed!


FAQs | Store | Memberships | Repair Videos | Academy | Newsletter | Beer Fund | Contact


Welcome to Appliantology.org, the Web's Premiere Appliance Repair Resource for DIYers!

The world-famous Samurai Appliance Repair Forums


You can post a question and get repair help for FREE! Click here to get started.


Already a member of the Appliantology Academy? Just sign in with your username and password in the upper right-hand corner of the screen.

 


Photo

LG LFC21760 Temp control changing by itself


  • Please log in to reply
3 replies to this topic

#1 bikesrfun

bikesrfun

    Ikkō-ikki

  • Grasshoppah
  • PipPip
  • 21 posts

Posted 22 January 2013 - 08:52 PM

Another wonderful day in the life of owning an LG refigerator.  I am having a problem with the refrigerator temp control changing by itself when the doors are open.  It happens intermittently, but more frequently as time goes on.  I also do not have control of the temp using the microswitches on the control panel.  I have to pull the plug and then plug it back in to get the fridge temp back to 37 degrees.  Any ideas anyone?



Use the Appliantology Parts Search Box to Find What You Need!
Enter your model number, part number, type of appliance, brand, or even a part description.
365-day return policy on all parts purchased here, even electrical parts that have been installed!

#2 Wingerman

Wingerman

    Yamabushi

  • Master Appliantologist
  • PipPip
  • 93 posts
  • Location: USA
  • Flavorite Brew:Cuervo Silver and Lemonade

Posted 22 January 2013 - 09:52 PM

This model is notorious for light staying on, throwing temp control sensor off target temp as doors open and close. Also, the Micom (PCB) takes 3 inputs (Freezer sensor, Refrig Sensor, and Defrost Sensor) and COMPARES voltage inputs (O to 5V) to make temperature control decisions. .5 to 5V is a "normal" operational reading from sensors to Micom--refer to manual for pin numbers. So, with that said, a good place to start is ohming out the three sensors per service manual and proceeding to an operational test with voltages. If sensors pass ohm testing, then suspect the Micom.


Edited by Wingerman, 23 January 2013 - 12:10 AM.


#3 john63

john63

    Dean of LG Appliantology

  • Appliantology Fellow
  • PipPipPipPipPip
  • 2,152 posts
  • Location: USA

Posted 22 January 2013 - 11:02 PM

Post the SERIAL NUMBER.


To eliminate:

Musty odor

L-O-N-G cycle times

Dingy/yellowing whites

Suds error message

Slow spin speeds

Intermittent water leaks (from rear of washer)

And other annoying symptoms which vary brand-to brand.

Read below:

The *correct* amount of HE (High Efficiency) detergent that should be used in any front load or agitatorless top load washer with tub sizes 3.0 cu ft and larger is as follows:

HE: (2) Tablespoons Per Wash Load

HE 2X: (1) Tablespoon

HE 3X: (1) Teaspoon

Perform a TUB CLEAN CYCLE every (4) months.

Use: "Tide Washing Machine Cleaner"

#4 bikesrfun

bikesrfun

    Ikkō-ikki

  • Grasshoppah
  • PipPip
  • 21 posts

Posted 24 January 2013 - 06:25 AM

Post the SERIAL NUMBER.

Serial Number 612KRTA00433.  Already had the LG warranty repair for the lights staying on about two years ago.


Edited by bikesrfun, 24 January 2013 - 06:26 AM.





0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users


FAQs | Store | Memberships | Repair Videos | Academy | Newsletter | Beer Fund | Contact


Use the Appliantology Parts Finder to Get What You Need!
Enter a model number, part number, type of appliance, brand, or even a part description.
365-day return policy on all parts purchased here, even electrical parts that have been installed!

Your Sometimes-Lucid Host:
Samurai Appliance Repair Man
"If I can't help you fix your appliance and make you 100% satisfied, I will come to your home and slice open my belly,
spilling my steaming entrails onto your floor."


The Appliance Guru | Master Samurai Tech

Real Time Analytics