ICP 40VA Transformer for WPG4244060LKA1 — OEM 208/230V to 24V | Ships Today

Overview

This OEM 40VA control transformer (part #1173691) with its 24V terminal barrier (part #1178431) powers the low-voltage control circuit on the ICP WPG4244060LKA1 packaged gas-electric unit. It steps down 208/230V line voltage to the 24V used by the thermostat, control board, contactor coil, and gas valve. Rated at 40VA, it supplies the current the entire control circuit needs to operate. When the transformer fails — usually from a control-circuit short or age — the thermostat goes dark and the system won't respond to any heat or cool call.

Specifications

Compatibility

Factory replacement for the ICP / Tempstar / Heil WPG4244060LKA1 packaged unit's control transformer. Also fits related ICP-family units specifying a 40VA 208/230-to-24V transformer — verify primary tap voltage and VA rating against your original before installing.

Installation Guide

1. Safety First — Disconnect power at the unit and breaker, then verify zero voltage with a multimeter.
2. Access — Remove the electrical control access panel.
3. Document — Photograph the primary and secondary wiring and the barrier terminal positions before disconnecting.
4. Remove — Label and disconnect the primary and 24V secondary leads, then unbolt the old transformer from its mount.
5. Install — Mount the new transformer, install the terminal barrier, and reconnect each lead to the correct voltage tap per your photo.
6. Test — Restore power and confirm 24V at the secondary and that the thermostat and controls power up.

Signs You Need a Replacement

• Blank thermostat and no response to heat or cool calls
• No 24V measured at the transformer secondary
• Repeatedly blown low-voltage fuse or burnt transformer windings
• Burning smell or visibly scorched transformer housing

Shipping & Returns

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