ICP Transformer for WFHR060B036A1 — 40VA 120/24V | Ships Today

Overview

This is a genuine OEM 40VA control transformer (part number 1177217) for the ICP / Tempstar / Heil WFHR060B036A1 furnace. It steps incoming 120-volt line power down to the 24-volt control voltage that powers the thermostat, gas valve, igniter circuit, and control board. When a transformer fails, the entire 24V control system goes dead even though line power is present at the unit. Common symptoms include a blank thermostat, a furnace that will not start a heat call, a tripped low-voltage circuit, or a transformer that hums, runs hot, or shows scorch marks. Replacing it restores 24VAC to the control circuit and brings the system back online.

Specifications

Compatibility

Engineered as the factory replacement for the ICP-family model WFHR060B036A1 and shares the same 40VA / 120-24V rating used across many ICP, Tempstar, Heil, and Comfortmaker gas furnaces. Confirm your original transformer is rated 40VA with a 120V primary and 24V secondary 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 service panel to expose the control area.
3. Document — Photograph all primary and secondary wires before disconnecting.
4. Remove — Disconnect the primary (120V) and secondary (24V) leads, then unbolt the failed transformer from its bracket.
5. Install — Mount the new transformer and reconnect each lead exactly per your photo.
6. Test — Restore power and confirm 24VAC at the secondary and a normal heat call.

Signs You Need a Replacement

• Blank or unresponsive thermostat with line power present
• No 24VAC reading at the control board or gas valve
• Transformer is hot to the touch, buzzing, or smells burnt
• Repeated low-voltage fuse blowing on the control board

Shipping & Returns

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