ICP Run Capacitor 5 MFD 370V for RGS243LFEA0AAAA — Blower Motor | Ships Today

Overview

This is a genuine OEM run capacitor (part number 1183001, "Capacitor Plate") for the ICP / Tempstar / Heil RGS243LFEA0AAAA gas furnace. Rated at 5 MFD and 370 volts, it supplies the phase-shifted current the blower motor needs to start and run smoothly, keeping motor torque steady through each cycle. As a run capacitor ages it loses capacitance, and when it fails the blower may hum without starting, run slowly, overheat, or trip on thermal overload — stopping the furnace from delivering conditioned air to the home.

Specifications

Compatibility

Engineered as a direct OEM fit for the ICP RGS243LFEA0AAAA gas furnace and equivalent Tempstar, Heil, Comfortmaker, and Carrier-family models built on the same blower platform. Always confirm the printed MFD and voltage rating on your existing capacitor before installing.

Installation Guide

1. Safety First — Disconnect power at the furnace switch and breaker, then verify zero voltage with a multimeter. Capacitors hold a charge — discharge with an insulated resistor before touching terminals.
2. Access — Remove the furnace blower compartment service panel.
3. Document — Photograph all wire connections before disconnecting anything.
4. Remove — Note the lead positions, pull the spade connectors off the old capacitor, and loosen the mounting strap or plate.
5. Install — Mount the new 5 MFD 370V capacitor, secure the strap, and reconnect the leads exactly per your photo.
6. Test — Restore power and confirm the blower starts promptly and runs without humming or overheating.

Signs You Need a Replacement

• Blower motor hums but will not start spinning.
• Blower starts slowly or struggles to reach full speed.
• Bulged, leaking, or burst capacitor top.
• Furnace runs but airflow is weak or the motor overheats and trips.

Shipping & Returns

Ships same day on orders placed before 3 PM CST. 30-day hassle-free returns. Backed by the National HVAC Parts fitment guarantee.