How to Clean the Heat Sensor on a Lennox AC?

Answer Lennox air conditioners regulate temperature with a thermal expansion valve system, or TEV. Part of the expansion valve, located inside the evaporator, is a heat-sensing bulb. If the air conditioni... Read More »

Top Q&A For: How to Clean the Heat Sensor on a Lennox AC

How to Clean a Flame Sensor on a Lennox Elite Furnace?

All Lennox Elite Series furnaces come with a flame sensor. The sensor is a safety device that permits the furnace to operate. A dirty flame sensor causes a furnace shut down, so it needs occasional... Read More »

How to Clean the Flame Sensor on a Lennox Pulse 21 Model G21Q3-60-1 Furnace?

The Lennox Pulse 21 furnace has a flame sensor that will not allow the furnace to run if it is covered in debris. If the sensor is dirty, the heat will not go on. You can remove the flame sensor an... Read More »

What is the cost of a Lennox heat pump?

In 2010, Lennox heat pump prices range from about $675 to more than $2,500 for standard sizes. Pricing depends on location, size and installation fees. Some heat pumps come with 10-year warranties ... Read More »

At what temperature will a Lennox heat pump work?

A heat pump begins to work depending on the temperature the thermostat is set at. When the thermostat senses the need for heat or cooling, it signals the pump. The pump then either moves warm out o... Read More »