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LG LMAN120HNS Control Board
The entire heating and cooling system will not run at all unless this important circuit board is installed as it should be according to the manufacturer. The control board is constructed to oversee the gas valve, the igniter, the flame sensor and the blower all in one unit. It is imperative that you select wisely while picking a new replacement board due to the many differences between models and types. The board you select should match the model number with both the make and model of the unit you have installed.
Signs of a failing main circuit board
- There may be a flashing error code lit up on the front of the control board
- The HVAC system needs to be reset quite often for everything to run again
- The whole unit is not able to operate correctly
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If you are going to be buying or purchasing any LG LMAN120HNS replacement part, do your due diligence and double check the model number as well as make a visual comparison so that you are positive that the right control board is the one being purchased. The installing of a new control board can be quite easy assuming you have the time and have the proper tools to do it right.
Feel free to download your manual for help.
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