ICP 40VA Transformer 120/208/240V to 24V for LUOV090REA1 — Ships Today

Overview

The ICP 50600 is an OEM 40VA control transformer that steps line voltage (120/208/240V) down to the 24V control voltage required by your furnace's circuit board, gas valve, and thermostat. The transformer is the heart of the low-voltage control system — if it fails, nothing in the control circuit powers up: the thermostat goes dark, the board won't energize, and the system simply will not start. Transformers typically fail from a shorted secondary (often caused by a pinched or grounded thermostat wire) that overheats and opens the windings. A correctly rated 40VA replacement restores stable 24V power to all control components.

Specifications

Compatibility

Direct OEM replacement for ICP model LUOV090REA1. Confirm your primary voltage tap and VA rating before installing.

Installation Guide

1. Safety First — Disconnect power at the disconnect or breaker and verify zero voltage with a multimeter.
2. Access — Remove the control compartment service panel.
3. Document — Photograph every primary and secondary lead before disconnecting.
4. Remove — Disconnect the transformer leads, remove the mounting screws, and lift out the old transformer. Inspect thermostat wiring for shorts before powering the new unit.
5. Install — Mount the new transformer, land the primary leads on the correct voltage tap, and reconnect the 24V secondary per your photo.
6. Test — Restore power and verify 24V at the secondary with a multimeter, then confirm the controls energize.

Signs You Need a Replacement

• No 24V control power — thermostat blank and system dead
• Tripped or repeatedly blown control fuse
• Burnt smell or discolored transformer housing
• No measurable voltage at the secondary terminals

Shipping & Returns

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