Tempstar 1-Pole 30A Contactor for T4A336GKD100 – 24V Coil | Ships Today

Overview

This is the genuine OEM definite-purpose contactor (part #1172472) for the Tempstar T4A336GKD100 heat pump. It is a 1-pole, 30-amp contactor with a 24V coil and an integrated shunt, used to switch line power to the compressor and condenser fan when the thermostat calls. The 24V coil pulls the contacts closed; the shunt routes power to the run capacitor circuit. Contactors are high-wear components — their contacts pit, burn, and weld over thousands of cycles. A failed contactor is a leading cause of an outdoor unit that won't start, chatters, or stays running after the call ends.

Specifications

Compatibility

Designed for the Tempstar T4A336GKD100 heat pump and shared across ICP-built T4A3 series condensers sold under the Tempstar, Heil, Comfortmaker, and ICP brands. Confirm your existing contactor is a 1-pole, 30A, 24V unit and that the part number matches 1172472 before ordering.

Installation Guide

1. Safety First – Disconnect power at the outdoor disconnect and verify zero voltage with a multimeter.
2. Access – Remove the condenser control panel cover to expose the contactor.
3. Document – Photograph all line, load, and 24V coil connections before removing any wires.
4. Remove – Transfer wires one at a time or label them, then unscrew the old contactor from its mounting feet.
5. Install – Mount the new 1172472 contactor, reconnect each wire to the matching terminal per your photos, including the shunt lead.
6. Test – Restore power, place a call for cooling, and confirm the contactor pulls in cleanly and the compressor and fan energize.

Signs You Need a Replacement

• Outdoor unit won't start even though the coil is getting 24V.
• Loud buzzing, chattering, or humming from the contactor.
• Burned, pitted, or welded contacts that won't open or close.
• Compressor keeps running after the thermostat call ends.

Shipping & Returns

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