ICP Transformer for WJA324000K000A2 — 40VA 208/230V to 24V | Ships Today

Overview

This OEM control transformer (part #1173691) steps the 208/230V line voltage down to the 24V required by the low-voltage control circuit on the ICP WJA324000K000A2 condensing unit. Rated at 40VA, it powers the contactor coil, thermostat circuit, and safety controls. The kit also includes the 24V barrier (part #1176032) that isolates and protects the low-voltage terminals. A failed transformer is one of the most common causes of a system that gets a thermostat call but never energizes — the contactor never pulls in because there is no 24V output.

Specifications

Compatibility

Engineered as a direct OEM replacement for the ICP WJA324000K000A2 condensing unit. ICP manufactures equipment sold under the Tempstar, Heil, Comfortmaker, Arcoaire, and KeepRite brands, so this transformer commonly fits matching models across those lines. Always confirm against the wiring diagram on your unit's panel.

Installation Guide

1. Safety First — Disconnect power at the disconnect and breaker. Verify zero voltage at the contactor terminals with a multimeter.
2. Access — Remove the control-panel service cover.
3. Document — Photograph every primary and secondary lead before disconnecting.
4. Remove — Disconnect the line-voltage primaries and the 24V secondaries, then unbolt the transformer from the bracket.
5. Install — Mount the new transformer and barrier, reconnect leads exactly per your photo, matching primary taps to your supply voltage.
6. Test — Restore power, call for cooling, and confirm 24V across the secondary terminals.

Signs You Need a Replacement

• No 24V output measured at the secondary terminals
• Contactor never pulls in on a cooling call
• Repeatedly blown low-voltage fuse or burnt smell at the transformer
• Buzzing, overheated, 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.