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Mitsubishi MSZ-A09NA Defrost Sensor Board
The defrost sensor control board commences the defrost cycle in order to keep the outdoor unit free from frost build-up. The defrost board depends on a defrost sensor that can be found near the condenser, in order to verify when the defrost cycle should begin.
Important signs your Mitsubishi defrost sensor board will need to be replaced
- The main board might give out an error of some type produced when the defrost control board fails to receive a signal
- The defrost sequence never begins despite that there is a large amount frost built up
- The system may not run due to lack of airflow through the outdoor unit
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Before you decide on buying or ordering a replacement defrost sensor board for your Mitsubishi MSZ-A09NA do your best and cross-check the model number and also make a visual inspection in order to be sure the right defrost sensor board is being ordered. There is no need to install the part by yourself. Locate a pro in your area to replace the part.
Feel free to download your manual for help.
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