ICP Transformer for RHS048L0CA0AAA — 24V 40VA Control | Ships Today

Overview

This OEM 24V control transformer/coil component (part 1175367) supplies the low-voltage power that drives the 24V control circuit on the ICP/Tempstar/Heil RHS048L0CA0AAA heat pump. Stepping line voltage down to 24V, it energizes the contactor coil, reversing-valve solenoid, and thermostat circuit. When this component fails, the entire low-voltage side goes dead — the thermostat may go blank, the contactor won't pull in, and the unit will not respond to a call. Common failure modes include an open primary or secondary winding, an internal short from overload, or a tripped circuit caused by a shorted control wire. A correct 24V / 40VA replacement restores reliable control power.

Specifications

Compatibility

Designed for the ICP/Tempstar/Heil RHS048L0CA0AAA heat pump and used across comparable ICP-family heat pumps and condensing units sharing the same 24V control architecture. Verify the primary voltage and secondary VA rating against your existing component before installing.

Installation Guide

1. Safety First — Disconnect power and verify zero voltage with a multimeter.
2. Access — Remove the control/service panel to reach the low-voltage section.
3. Document — Photograph all primary and secondary wiring before disconnecting.
4. Remove — Label leads, disconnect them, and unfasten the old component from its mount.
5. Install — Mount the new unit and reconnect each lead to the matching terminal per your photo.
6. Test — Restore power and confirm 24V across the secondary and normal control operation.

Signs You Need a Replacement

• Blank thermostat or dead low-voltage circuit
• Contactor coil and reversing valve won't energize
• No measurable 24V on the secondary
• Repeated control-circuit failures or burnt smell

Shipping & Returns

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