ICP Transformer 40VA for WFAR080C060A1 — 120/24V | Ships Today

Overview

This OEM 40VA control transformer (part #1177217) steps down 120V line voltage to the 24V control voltage that powers your furnace's thermostat, gas valve, igniter circuit, and control board. When a transformer fails, the entire low-voltage control system goes dead: the thermostat screen may go blank, the furnace won't respond to a call for heat, and you'll often find a blown fuse on the control board or a burnt smell at the transformer windings. Rated at 40VA, this unit supplies ample current for the WFAR080C060A1's control loads while maintaining stable 24V output under demand.

Specifications

Compatibility

Directly fits the ICP / Tempstar / Heil WFAR080C060A1 gas furnace. This 40VA transformer is also a common control-voltage component across many ICP-family air handlers and furnaces — always confirm the original VA rating and voltage tap before installing.

Installation Guide

1. Safety First — Disconnect power at the furnace switch and breaker, then verify zero voltage with a multimeter.
2. Access — Remove the furnace control/blower compartment service panel.
3. Document — Photograph all primary and secondary wire connections before disconnecting.
4. Remove — Disconnect the 120V primary leads and 24V secondary leads, then unbolt the transformer from its mounting bracket.
5. Install — Mount the new transformer, reconnect the line and control wiring exactly per your photo, matching the correct voltage tap.
6. Test — Restore power and verify 24V at the secondary and a normal heat cycle.

Signs You Need a Replacement

• Blank or dead thermostat with no 24V control power
• Repeatedly blown control-board fuse
• Furnace won't start on a call for heat
• Buzzing, overheating, or a burnt smell at the transformer

Shipping & Returns

Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.