Description
The Mitsubishi U01A04307 is a genuine OEM indoor coil thermistor engineered for use in compatible Mitsubishi mini-split and heat pump systems. This precision temperature-sensing component monitors coil temperatures in real time, feeding critical data to the system’s control board to maintain efficient heating and cooling operation.
Why the Indoor Coil Thermistor Matters
The indoor coil thermistor plays a vital role in system performance and protection. By continuously measuring the evaporator coil temperature, it enables the control board to regulate refrigerant flow, prevent freeze-up, and optimize energy efficiency. A failed or out-of-spec thermistor can trigger fault codes, cause erratic operation, or result in system shutdown — making timely replacement with an authentic OEM part essential.
Key Features
- Genuine Mitsubishi OEM replacement part — ensures precise fit and function
- Designed for accurate indoor coil temperature sensing
- Supports proper refrigerant cycle management and freeze protection
- Helps maintain peak system efficiency and prevent nuisance fault codes
- Direct replacement for compatible Mitsubishi mini-split and heat pump indoor units
Installation Notes
Always verify compatibility with your specific Mitsubishi model before installation. Refer to the unit’s service manual for thermistor location, resistance specifications, and proper connector orientation. Disconnect power to the unit before servicing.
Product Specifications
- Brand: Mitsubishi
- Part Number: U01A04307
- Component Type: Indoor Coil Thermistor
- Part Type: Genuine OEM Replacement







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