ICP 40VA 24V Control Transformer for RYB041GAA | Ships Today

Overview

This genuine OEM 24-volt control transformer (part number 24297100) supplies the low-voltage power your ICP RYB041GAA system needs to run its 24V control circuit. The transformer steps line voltage down to a stable 24V to power the thermostat, contactor coil, relays, and safety controls. When a transformer fails — often from a shorted control wire, a stuck contactor coil, or simple age — the entire low-voltage circuit goes dead, leaving the system unable to respond to the thermostat even though line power is present. A 40VA rating provides ample capacity for the control loads on this equipment.

Specifications

Compatibility

Factory replacement low-voltage power supply for the ICP RYB041GAA and compatible ICP, Tempstar, Heil, and Comfortmaker systems using a 24V / 40VA control transformer. Confirm secondary voltage and VA rating against your existing part before installing.

Installation Guide

1. Safety First — Disconnect power at the breaker and verify zero voltage with a multimeter.
2. Access — Remove the control panel cover to reach the transformer.
3. Document — Photograph the primary (line) and secondary (24V) wire connections before disconnecting.
4. Remove — Disconnect the leads, unfasten the mounting, and remove the failed transformer.
5. Install — Mount the new transformer and reconnect primary and secondary leads per your photo.
6. Test — Restore power and verify roughly 24V across the secondary terminals and that the system responds to the thermostat.

Signs You Need a Replacement

• No response from the thermostat despite line power present
• No measurable 24V at the control terminals
• Burned smell, scorched casing, or visibly melted windings
• Repeatedly blown low-voltage fuse

Shipping & Returns

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