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This OEM ICP transformer (part number 1177217) steps 120V line voltage down to the 24V control voltage that powers the thermostat, relays, gas valve, and contactor in the ICP / Tempstar / Heil WFAR060B048C1 furnace. Rated at 40VA with a 120V primary and 24V secondary, it is the exact factory component for this system. When a transformer fails, the entire low-voltage control circuit goes dead — the thermostat blanks out and the unit will not respond to any heating or cooling call. Common symptoms include repeatedly blown low-voltage fuses, no 24V at the board, and a burnt smell near the transformer windings.
| Spec | Value |
|---|---|
| Part Number | 1177217 |
| Type | Step-Down Control Transformer |
| Brand | ICP (Tempstar / Heil / Comfortmaker) |
| Rating | 40 VA |
| Primary Voltage | 120V |
| Secondary Voltage | 24V |
| Fitment | OEM Direct Replacement |
Direct OEM fit for the ICP / Tempstar / Heil WFAR060B048C1 gas furnace. This 40VA 120/24V transformer is shared across many ICP-family models using the same control platform. Verify your existing transformer is 120V primary / 24V secondary at 40VA before installing.
Ships same day on orders placed before 3 PM CST. 30-day hassle-free returns. Backed by the National HVAC Parts fitment guarantee.