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Customer Questions and Answers for Thermistor by Lg

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Manufacturer Part
4.89 (64)
By: Lg
Part Number: OEM17969862
Manufacturer Part Number: EBG61305805

The Thermistor is an OEM replacement part for LG gas ranges. It serves as a highly sensitive temperature sensor mounted inside the oven cavity. 

Symptoms of a bad thermistor include:  

  • Inability to select certain cooking modes like bake or convection that involve temperature control
  • Fluctuating or inaccurate temperature readouts on oven displays
  • Irregular cooking outcomes like hot/cold spots inside the oven
  • Repeated error codes regarding temperature sensing issues

Causes can be attributed to prolonged exposures to heat and intermittent combustion byproducts inside the oven. Over a decade of use, these conditions may degrade the thermal and electrical properties of sensor components. 

This genuine LG replacement thermistor installs effortlessly. Installing a new thermistor restores temperature monitoring required for reliable gas oven performance. 

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Questions & Answers

For Lg Thermistor (Part Number: OEM17969862)

1 Answer

J, if the model number of your appliance could be provided in a new question, this will allow the most accurate information to be presented.

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Greg for Model Number LSB5611SS

_Oven set for 350 deg. _Oven overheats to nearly 500 deg and keeps climbing, indicated by portable temp gauge in oven, burns up whatever is in the oven. _Does not regulate temp. _Shutoff oven from front panel. It is really really hot over the 350 deg. as shown on the display. (1) Changed the expensive processor Bd. - Same overheat problem. (2) Checked the Thermistor at room temp. - is 1090 ohm (within range). The only thing left is the relay board (quite expensive). Do you recommend replacing the relay bd. ?, or is there some other component thats affecting the oven overheat problem ?. Heard that the broiler plays a part in pre-heating the oven ?. Do you believe that it is the relay bd is the problem Thanks for your help.

1 Answer

Jon, the thermostat on your model would be in line with the door lock assembly and would not prevent voltage from reaching the elements. If the heating elements and the oven sensor tested good, then the most likely failure is going to be the oven relay board EBR74164801 and can be tested for 240VAC output from the terminal at the relay 106 to the bake terminal at relay 104 while set to the bake setting. If there is only 120VAC, or no voltage at all, then the relays are not closing properly.

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1 Answer

Shaun, Before replacing anything test the oven temp sensor for 1100 ohms give or take 10 % at room temp. So possible readings are from 1000 to 1100 ohms of resistance. This is usually the cause for an oven not staying within temps.

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1 Answer

Steve, It is possible that the connector in the harness is the reason it could be not reading the temps. You can check thru the harness at the board and see if you still read 1080 at room temp. If so it would most likely be the control not reading it correctly. EBR73710101

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1 Answer

Akmal, This thermistor will have a resistance reading of 1090 ohms at room temp. There would not be a voltage reading on it. The resistance will change with the change in temp. For every degree of temperature rise there would be 2 ohms of resistance.

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