ICP Transformer for RHS102H0CB0AAA — 24V 40VA Control Circuit | Ships Today

Overview

This control transformer delivers the 24V low-voltage power that operates the contactor coil, control board, and reversing-valve circuit on your ICP RHS102H0CB0AAA heat pump. It steps 208/240V line voltage down to 24V at 40VA. When it fails, the whole low-voltage control circuit goes dead — the contactor won't pull in, the thermostat may go blank, and the compressor and fan never start even with line power present. Failures stem from voltage spikes, a shorted secondary, or overheating from an overloaded control circuit.

Specifications

Compatibility

Engineered for the ICP/Tempstar/Heil RHS102H0CB0AAA heat pump and shared across the RHS102 series condensing units. Verify your existing transformer's VA and voltage taps 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 connections before disconnecting.
4. Remove — Disconnect the primary and secondary leads and unbolt the old transformer from the bracket.
5. Install — Mount the new transformer, match the primary leads to the correct voltage tap, and reconnect the secondary per your photo.
6. Test — Restore power and confirm 24V across the secondary terminals.

Signs You Need a Replacement

• No 24V at the control board or thermostat
• Contactor won't energize and the system never starts
• Scorched, swollen, or burnt-smelling transformer
• Repeatedly blown low-voltage fuses

Shipping & Returns

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