OEM Lennox Humidifier Board — Y5017 (HE150 TrueEASE)
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The genuine OEM Lennox Y5017 circuit board (part 50057547-002) is the control board for the Lennox HE150 TrueEASE Small Advanced bypass humidifier. It manages the humidifier's water solenoid, fan operation, and humidistat signaling, ensuring your home receives properly regulated humidity during the heating season. This board is a direct factory replacement engineered specifically for HE150 TrueEASE units.
A failed humidifier board typically results in a unit that won't produce humidity, a solenoid valve that won't open or stays open, no response to the humidistat, or an unresponsive control with no power. Erratic cycling and continuous water flow are also common symptoms of a degraded board.
Installing the OEM Y5017 guarantees correct voltage handling, connector fit, and control logic matched to the TrueEASE HE150 platform. Generic replacements risk improper solenoid control, water waste, and compatibility faults. The factory board restores precise, reliable humidity control and protects the rest of your Lennox humidifier system.
Shipping Information
- Orders placed before 3PM CST ship same business day
- Standard delivery: 2-5 business days
- Express shipping available at checkout
- Free shipping on orders over $75
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Return Policy
- 30-day returns on unused parts in original packaging
- Electrical parts (capacitors, contactors, control boards) are final sale once installed
- Email info@nationalhvacparts.com to initiate a return
- Refunds processed within 5-7 business days