ICP 1-Pole 25A Contactor for WPH3242000RKA1 — 24V Coil | Ships Today

Overview

This is the OEM single-pole definite purpose contactor (part number 1173689) for the ICP / Tempstar / Heil WPH3242000RKA1 heat pump. The contactor is the electromechanical switch that energizes the outdoor compressor and condenser fan motor whenever the thermostat calls for cooling or heat-pump heating. When the 24-volt coil is energized, it pulls the 25-amp line-voltage contacts closed to feed power to the compressor. Over time the silver contacts pit, burn, and weld from the arcing that occurs on every cycle, and the coil can fail open. Common failure symptoms include a unit that hums but won't start, an outdoor fan and compressor that won't shut off, chattering at the contactor, or visibly burnt and corroded contacts. Replacing a worn contactor is one of the most common HVAC repairs and restores reliable starting.

Specifications

Compatibility

Engineered as the factory-correct replacement for the ICP WPH3242000RKA1 heat pump. ICP-built equipment is sold under the Tempstar, Heil, Comfortmaker, and Arcoaire labels, so this contactor also services equivalent units across those brands that originally shipped with part 1173689. Always confirm the 1-pole configuration and 24V coil match your existing component.

Installation Guide

1. Safety First — Disconnect power at the outdoor disconnect and breaker, then verify zero voltage at the contactor with a multimeter before touching any wires.
2. Access — Remove the condensing unit's electrical access panel.
3. Document — Photograph every wire and terminal position before disconnecting anything.
4. Remove — Transfer wires one at a time, or label them, then unscrew the old contactor from its bracket and lift it out.
5. Install — Mount the new contactor, then reconnect the line, load, and 24V coil wires exactly per your photo.
6. Test — Restore power and call for cooling; confirm the contacts pull in cleanly and the compressor and fan start.

Signs You Need a Replacement

• Outdoor unit hums or buzzes but the compressor will not start.
• Contactor chatters rapidly instead of pulling in solidly.
• Burnt, pitted, or welded contacts that keep the unit running.
• No 24V at the coil or an open coil reading on the meter.

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.