Description
The Lennox Y4035 Tube Temperature Sensor, is a thermistor-type probe used to monitor refrigerant piping within GWH09MA-A3DN series heat pump system. It continuously detects the temperature changes on the tubing surface and sends readings to the control board, allowing proper regulation of heating and cooling cycles in the HVAC systems. It is positioned on the coil or pipe section where accurate thermal feedback is needed for stable operation. It supports system logic for defrost control, compressor modulation, and overall thermal balance inside systems. The sensor plays a key role in maintaining correct operating conditions and ensuring consistent performance in mini-split heat pump setups.
