Where the money goes
Part $30–$120Labor $55–$520Typical labor time: 1–2 hrs
You might need this if…
DIY difficulty: moderate•Furnace tries to start but stops before ignition
•Inducer runs, no heat
The part
The pressure switch verifies the inducer is moving combustion gases safely before ignition is allowed.
Error codes that lead to this repair
E1Pressure switch was closed at the wrong timeCall a pro soonE2Pressure-switch circuit did not closeCall a pro soon2 FlashPressure switch was closed at the wrong timeCall a pro soon3 FlashPressure-switch circuit did not closeCall a pro soon23Pressure switch was closed at the wrong timeCall a pro soon31Pressure-switch circuit did not closeCall a pro soon32Pressure-switch circuit did not closeCall a pro soon43Pressure-switch circuit did not closeCall a pro soon271Pressure-switch retry lockoutCall a pro soon272Pressure-switch recycle lockoutCall a pro soon276Pressure-switch calibration lockoutCall a pro soon44Pressure switch was closed at the wrong timeCall a pro soon45Pressure-switch circuit did not closeCall a pro soon23Pressure switch was closed at the wrong timeCall a pro soon31Pressure-switch circuit did not closeCall a pro soon32Pressure-switch circuit did not closeCall a pro soon43Pressure-switch circuit did not closeCall a pro soon2 BlinksPressure switch was closed at the wrong timeCall a pro soon3 BlinksPressure-switch circuit did not closeCall a pro soon6 BlinksPressure-switch cycle lockoutCall a pro soonE1Pressure switch was closed at the wrong timeCall a pro soonE2Pressure-switch circuit did not closeCall a pro soon2 FlashPressure switch was closed at the wrong timeCall a pro soon3 FlashPressure-switch circuit did not closeCall a pro soon44Pressure switch was closed at the wrong timeCall a pro soon45Pressure-switch circuit did not closeCall a pro soon2 FlashPressure switch was closed at the wrong timeCall a pro soon3 FlashPressure-switch circuit did not closeCall a pro soon9 FlashPressure-switch circuit did not closeCall a pro soon23Pressure switch was closed at the wrong timeCall a pro soon31Pressure-switch circuit did not closeCall a pro soon32Pressure-switch circuit did not closeCall a pro soon43Pressure-switch circuit did not closeCall a pro soon2 FlashPressure switch was closed at the wrong timeCall a pro soon3 FlashPressure-switch circuit did not closeCall a pro soon9 FlashPressure-switch circuit did not closeCall a pro soon3 BlinksPressure-switch circuit did not closeCall a pro soon6 BlinksPressure-switch cycle lockoutCall a pro soon2 BlinksPressure switch was closed at the wrong timeCall a pro soon3 BlinksPressure-switch circuit did not closeCall a pro soon6 BlinksPressure-switch cycle lockoutCall a pro soonE1Pressure switch was closed at the wrong timeCall a pro soonE2Pressure-switch circuit did not closeCall a pro soon2 FlashPressure switch was closed at the wrong timeCall a pro soon3 FlashPressure-switch circuit did not closeCall a pro soon2 FlashPressure switch was closed at the wrong timeCall a pro soon3 FlashPressure-switch circuit did not closeCall a pro soon9 FlashPressure-switch circuit did not closeCall a pro soon2 FlashPressure switch was closed at the wrong timeCall a pro soon3 FlashPressure-switch circuit did not closeCall a pro soon9 FlashPressure-switch circuit did not closeCall a pro soon2 FlashPressure switch was closed at the wrong timeCall a pro soon3 FlashPressure-switch circuit did not closeCall a pro soon9 FlashPressure-switch circuit did not closeCall a pro soon2 BlinksPressure switch was closed at the wrong timeCall a pro soon3 BlinksPressure-switch circuit did not closeCall a pro soon2 BlinksPressure switch was closed at the wrong timeCall a pro soon3 BlinksPressure-switch circuit did not closeCall a pro soon
This is general information, not professional advice. Gas, electrical, and combustion repairs can be dangerous — when in doubt, call a licensed technician.