ICP 24V Transformer for ZAEB020CLA1 — 40VA Control Power | Ships Today

Overview

This genuine OEM 24-volt control transformer (part #1053004) feeds low-voltage power to the control circuit of the ICP ZAEB020CLA1. Rated 40VA with a 24-volt secondary, it reduces line voltage to the 24V signal that operates the contactor coil, relays, and thermostat. When it fails, the control circuit goes dead — the system ignores calls for heating or cooling, the thermostat may blank out, and the low-voltage fuse can blow repeatedly. Buzzing, overheating, or a zero reading across the secondary are clear signs the transformer needs replacing.

Specifications

Compatibility

Direct-fit replacement for the ICP ZAEB020CLA1 and shared-platform units across the ICP family of brands — Tempstar, Heil, and Comfortmaker — using the same 24V, 40VA control transformer.

Installation Guide

1. Safety First — Disconnect power at the breaker and confirm 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 primary and 24V secondary leads, then unbolt the old transformer.
5. Install — Mount the replacement transformer and reconnect leads exactly as documented.
6. Test — Restore power, verify 24V at the secondary, and confirm normal operation.

Signs You Need a Replacement

• No 24V output at the secondary terminals.
• Dead thermostat with line power confirmed.
• Buzzing or burnt smell from the transformer.
• Repeatedly blown low-voltage control fuses.

Shipping & Returns

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