ICP 40VA Transformer for WFSR080C060A1 — 120V to 24V Control | Ships Today

Overview

This OEM 40VA step-down transformer (OEM 1177217) converts 120V line voltage to the 24V control voltage that powers the thermostat, control board, gas valve, and relays in your ICP WFSR080C060A1 furnace. A failed transformer means a dead 24V control circuit — no thermostat response, no ignition sequence, and a completely unresponsive furnace, even though line power is present.

Specifications

Compatibility

Direct-fit replacement for the 40VA control transformer in the ICP/Heil/Tempstar WFSR080C060A1 furnace and other ICP-family models using a 120V-to-24V control circuit. Confirm primary voltage and VA rating before installing.

Installation Guide

1. Safety First — Disconnect power and verify zero voltage with a multimeter.
2. Access — Remove the furnace control-compartment service panel.
3. Document — Photograph the primary and secondary lead connections before disconnecting.
4. Remove — Disconnect the leads, remove the mounting screw(s), and take out the old transformer.
5. Install — Mount the new transformer and reconnect the 120V primary and 24V secondary leads per your photo.
6. Test — Restore power and confirm 24V across the secondary and normal furnace operation.

Signs You Need a Replacement

• Furnace completely unresponsive despite having line power
• No 24V reading across the transformer secondary
• Thermostat is dark or won't power up
• Burnt smell, scorching, or visible damage on the transformer

Shipping & Returns

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