15K Air Conditioner Heat Pump Thermistor Set (Room and Pipe Sensor Pair) - 15kΩ NTC

Ensuring that air conditioners operate at the correct temperature and transmitting real-time temperature data to the main board, the 15K Air Conditioner Heat Pump Thermistor Set is specially designed to measure room and pipe (coil) temperatures. With red and white connectors for easy installation, this pair of NTC sensors optimizes the heating and cooling performance of your air conditioner and helps prevent faults.

Room and Evaporator (Pipe) Temperature Control

This set sends temperature data to the brain of your air conditioner from two different critical points. The black epoxy-tip sensor (room thermistor) measures the temperature of the air in the room and determines when the compressor stops and starts. The copper-tip sensor (pipe thermistor) contacts the indoor unit evaporator tubes and keeps icing under control in cooling mode and the defrost cycle in heating mode.

Key Technical Specifications and Equipment

The key details of this sensor set, which measures with high precision over wide temperature ranges, are as follows:

• Product Type: NTC Thermistor Temperature Sensor Set
• Resistance Value: 15 kΩ — the value written as "15KW" on the product label does not indicate a kilowatt capacity but a 15 kΩ nominal resistance. Before ordering, verify the resistance value required by the main board (5K, 10K, 15K, 20K).
• Package Contents: 1 x Copper-Tip Pipe Sensor, 1 x Black Epoxy-Tip Room Sensor
• Connectors: 2-pin red and white JST connectors, plug-and-play compatible with the main board.
• Cable: Flexible, insulated black wiring resistant to breaking and bending.
• Application: Indoor units of split and floor-standing air conditioners with a compatible resistance value.

Practical Usage Note for Technicians in the Field

Technician's Note: For temperature sensor faults, which are common in air conditioners (when the main board shows error codes), you can identify the fault by measuring the resistance of the sensors. If one of the sensors has failed, replacing both sensors (as a set) so that the main board works in sync always gives a sounder, longer-lasting repair. When placing the copper sensor in its holder on the evaporator, make sure it makes full contact and that the holder is not loose.