ICP Transformer for WAHL244B1 — 40VA 208/230V to 24V | Ships Today

Overview

This OEM control transformer (part number 1172028) provides the 24V control power for your ICP WAHL244B1 system. It steps line voltage of 208/230V down to a 24V secondary that runs the thermostat, relays, and control board. Rated at 40VA, it delivers consistent low-voltage power to the control circuit. When the transformer fails, the system goes completely unresponsive — no thermostat power, no blower, no call for heat or cool — despite line voltage being present. A burnt smell, a blown control fuse, or no reading at the secondary terminals indicate a shorted or burned-out transformer.

Specifications

Compatibility

OEM replacement for the ICP / Heil / Tempstar / Comfortmaker WAHL244B1 air handler. The dual 208/230V primary tap supports both standard residential line-voltage supplies.

Installation Guide

1. Safety First — Disconnect power at the breaker and verify zero voltage with a multimeter.
2. Access — Remove the service panel to reach the control compartment.
3. Document — Photograph all primary and secondary wiring before disconnecting.
4. Remove — Disconnect the line-voltage and 24V leads, then unbolt the failed transformer.
5. Install — Mount the new transformer, match the correct primary tap to your supply, and reconnect per your photo.
6. Test — Restore power and verify 24V across the secondary terminals.

Signs You Need a Replacement

• No 24V control power — system completely dead
• Burnt smell or scorch marks on the transformer
• Repeatedly blown control fuse
• Zero or unstable secondary voltage reading

Shipping & Returns

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