Tempstar 40A Contactor for TCA760GKB101 — OEM 1176763 | Ships Today

Overview

This genuine OEM 40-amp contactor (part number 1176763) is the high-voltage switch for the Tempstar TCA760GKB101 condensing unit. When the thermostat calls for cooling, the 24-volt control coil pulls in the contactor, closing its power contacts to energize the compressor and condenser fan motor. Because the contacts carry the full load current, they wear, pit, and burn over time. A failing contactor produces chattering or buzzing, contacts that stick closed (so the unit never shuts off), or contacts that won't pull in at all (so the outdoor unit stays dead while the indoor blower runs). Pitted or melted contacts and a burnt coil are clear signs the part has reached the end of its life.

Specifications

Compatibility

Direct OEM replacement for the Tempstar TCA760GKB101 air conditioning condenser. Confirm the amp rating, pole count, and 24V coil voltage match your original contactor before installing.

Installation Guide

1. Safety First — Disconnect power at the outdoor disconnect and breaker, then verify zero voltage with a multimeter.
2. Access — Remove the condenser service panel to reach the control compartment.
3. Document — Photograph every line, load, and 24V coil wire before disconnecting.
4. Remove — Transfer wires off one at a time, then unscrew the old contactor from its bracket.
5. Install — Mount the new contactor and reconnect each wire to its matching terminal per your photo.
6. Test — Restore power, call for cooling, and confirm the contactor pulls in cleanly and the unit energizes.

Signs You Need a Replacement

• Loud chattering or buzzing at the outdoor unit
• Contacts stuck closed — unit won't shut off
• Pitted, burnt, or melted contact points
• Outdoor unit dead while the indoor blower still runs

Shipping & Returns

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