ICP Transformer for RHS102H0AA0AAAA — 24V Control 40VA | Ships Today

Overview

This OEM 24V control transformer feeds the low-voltage circuit — contactor coil, reversing-valve solenoid, defrost board, and thermostat — on your ICP Tempstar Heil RHS102H0AA0AAAA heat pump. It steps line voltage down to a stable 24-volt secondary rated at 40VA. A failed transformer kills the entire control circuit: the contactor won't energize, the reversing valve won't shift, and the thermostat may go dark. Common warning signs include a blown low-voltage fuse, transformer buzzing, a burnt odor, or no 24V across the R and C terminals.

Specifications

Compatibility

Engineered for the ICP-built RHS102H0AA0AAAA heat pump and equivalent Tempstar, Heil, and Comfortmaker RHS102-series units. Confirm voltage and VA rating against your existing transformer before installing.

Installation Guide

1. Safety First — Disconnect power at the disconnect and breaker, then verify zero voltage with a multimeter.
2. Access — Remove the control-panel service cover.
3. Document — Photograph all primary and secondary wire connections before disconnecting.
4. Remove — Label and disconnect the primary and secondary leads, then unbolt the old transformer.
5. Install — Mount the new transformer and reconnect primary and secondary per your photo.
6. Test — Restore power and confirm 24V across the secondary (R to C).

Signs You Need a Replacement

• No 24V reading on the secondary terminals.
• Repeatedly blown low-voltage or board fuse.
• Buzzing or burnt smell at the transformer.
• Blank thermostat or contactor that won't pull in.

Shipping & Returns

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