ICP 1-Pole 40A Contactor for WJA448000KTP0A1 — 24V Coil | Ships Today

Overview

This OEM definite purpose contactor (part 1173690) is a direct replacement for ICP, Tempstar, and Heil model WJA448000KTP0A1. The contactor is the high-current relay that switches line voltage to the compressor and condenser fan motor whenever the thermostat calls for cooling. A 24V control signal energizes the coil, pulling the contacts closed; when the call ends, the coil de-energizes and the contacts open. This is a 1-pole, 40-amp contactor with a 24V coil. Contactors fail from contact pitting and burning, a chattering or open coil, or debris jamming the armature — symptoms include a unit that won't start, chattering at the contactor, or a compressor that runs continuously because welded contacts won't release.

Specifications

Compatibility

Engineered for ICP, Tempstar, Heil, and Comfortmaker model WJA448000KTP0A1. Confirm your existing contactor is a 1-pole unit with a 24V coil rated at or near 40A before installing. Matching pole count and coil voltage is essential for correct operation.

Installation Guide

1. Safety First — Disconnect power at the breaker and disconnect switch, then verify zero voltage with a multimeter.
2. Access — Remove the condenser control panel cover.
3. Document — Photograph all line, load, and 24V coil wire connections before disconnecting.
4. Remove — Disconnect each wire, then unscrew the old contactor from its mounting bracket.
5. Install — Mount the new contactor and reconnect every 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 starts.

Signs You Need a Replacement

• Burnt, pitted, or welded contacts
• Loud chattering or buzzing at the contactor
• Unit won't start despite a 24V signal at the coil
• Compressor runs nonstop because contacts won't open

Shipping & Returns

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