ICP Contactor for WPH4244000RKB1 — 1-Pole 30A 24V w/ Shunt | Ships Today
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Overview
This is a genuine OEM single-pole contactor (part #1172472) for the ICP/Tempstar/Heil WPH4244000RKB1 heat pump. The contactor is a 1-pole, 30 amp device with a 24V control coil and integrated shunt. Its job is to switch line voltage to the compressor and condenser fan motor whenever the 24V signal from the thermostat and control board energizes the coil. The coil pulls the contacts closed; when the call for cooling or heating ends, a spring opens them. Over time the contact points pit, arc, and weld from thousands of switching cycles. Common failure symptoms include a unit that won't start, a loud buzzing or chattering at the contactor, contacts that stick closed (compressor runs continuously), or burnt and melted terminals.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1172472 |
| Type | Definite Purpose Contactor, 1-Pole w/ Shunt |
| Brand | ICP / Tempstar / Heil |
| Contact Rating | 30 Amp |
| Poles | 1 |
| Coil Voltage | 24V |
| Fits Model | WPH4244000RKB1 |
Compatibility
Engineered as a direct-fit replacement for the ICP WPH4244000RKB1 packaged heat pump and other Tempstar, Heil, and Comfortmaker units that originally shipped with OEM contactor 1172472. Always confirm your existing contactor's amp rating, pole count, and 24V coil before installing.
Installation Guide
- Safety First — Disconnect power at the disconnect and breaker, then verify zero voltage with a multimeter at the contactor terminals.
- Access — Remove the unit's service panel to expose the control compartment.
- Document — Photograph every wire and terminal position before disconnecting anything.
- Remove — Label and disconnect the line, load, and 24V coil wires; unscrew the old contactor from its bracket.
- Install — Mount the new contactor, then reconnect each wire to the matching terminal per your photo.
- Test — Restore power and confirm the contactor pulls in cleanly and the compressor and fan energize.
Signs You Need a Replacement
- Loud buzzing, humming, or chattering from the contactor.
- Compressor won't start or only starts intermittently.
- Contacts stuck closed — the system runs nonstop and won't shut off.
- Visible pitting, burning, or melted plastic on the contactor body.
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.
Shipping Information
- Orders placed before 3PM CST ship same business day
- Standard delivery: 2-5 business days
- Express shipping available at checkout
- Free shipping on orders over $75
- Tracking number emailed upon shipment
Return Policy
- 30-day returns on unused parts in original packaging
- Electrical parts (capacitors, contactors, control boards) are final sale once installed
- Email info@nationalhvacparts.com to initiate a return
- Refunds processed within 5-7 business days