ICP 24V Transformer for ZAEB025CLA1 — 40VA Control Power | Ships Today

Overview

This genuine OEM 24-volt control transformer (part #1053004) supplies low-voltage power to the control circuit of your ICP ZAEB025CLA1 air handler. Rated for 40VA with a 24-volt secondary, it converts line voltage down to the safe 24V signal required to operate relays, contactors, and the system thermostat. When a transformer fails, the entire control circuit loses power — the blower will not start, the thermostat goes blank, and no call for heating or cooling is answered. A buzzing transformer, a tripped low-voltage fuse, or zero reading across the secondary terminals all point to a failed unit that needs replacement.

Specifications

Compatibility

Engineered as a direct-fit replacement for the ICP ZAEB025CLA1 and shared platform models across the ICP family of brands including Tempstar, Heil, and Comfortmaker air handlers using the same 24V control architecture.

Installation Guide

1. Safety First — Disconnect power at the breaker and verify zero voltage at the unit with a multimeter before touching any wiring.
2. Access — Remove the service panel to expose the control compartment.
3. Document — Photograph all primary and secondary wire connections before disconnecting anything.
4. Remove — Label and disconnect the line-voltage primary leads and the 24V secondary leads, then unbolt the failed transformer from its mounting bracket.
5. Install — Mount the new transformer, reconnect primary and secondary leads exactly as photographed.
6. Test — Restore power and confirm 24V across the secondary terminals and normal system operation.

Signs You Need a Replacement

• No 24V output at the secondary terminals.
• Blank thermostat with line power present.
• Audible buzzing or burnt smell from the transformer.
• Repeated blown low-voltage fuses.

Shipping & Returns

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