Tempstar Contactor for TSH524GKA100 — 1-Pole 30A 24V Coil w/Shunt | Ships Today
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Overview
This is a genuine OEM 1-pole definite purpose contactor (Part No. 1172472) for the Tempstar TSH524GKA100 heat pump. Rated at 30 amps with a 24-volt control coil and an integrated shunt, the contactor is the electromechanical switch that energizes the compressor and outdoor fan motor whenever the thermostat calls for cooling or heating. When the 24V coil is energized, the contacts pull in and pass line voltage to the condensing unit; when the call ends, the coil de-energizes and the contacts open. A failing contactor is one of the most common reasons an outdoor unit won't start, hums, or chatters. Pitted, burned, or welded contacts cause hard starts, intermittent operation, or a unit that runs constantly because the contacts can no longer separate.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1172472 |
| Type | Definite Purpose Contactor, 1-Pole, w/Shunt |
| Brand | Tempstar (ICP / Heil) |
| Contact Rating | 30 Amps |
| Coil Voltage | 24V |
| Poles | 1 |
| Fits Model | TSH524GKA100 |
Compatibility
Designed as the factory replacement for the Tempstar TSH524GKA100 heat pump and shared across many ICP-family outdoor units, including Heil and Comfortmaker equivalents that use the 1172472 contactor. Always confirm the existing contactor is a 1-pole, 30A, 24V unit before installing.
Installation Guide
- Safety First — Disconnect power at the outdoor disconnect and breaker, then verify zero voltage with a multimeter at the contactor terminals.
- Access — Remove the outdoor unit's electrical access panel.
- Document — Photograph all line, load, and 24V control wires before disconnecting.
- Remove — Label and disconnect the wires, unscrew the old contactor from the bracket, and lift it out.
- Install — Mount the new contactor, reconnect every wire exactly per your photo, and confirm the 24V coil leads land on the coil terminals.
- Test — Restore power and trigger a cooling call; confirm the contacts pull in cleanly and the compressor and fan energize.
Signs You Need a Replacement
- Outdoor unit hums or buzzes but the compressor and fan won't start.
- Visible pitting, melting, or burn marks on the contacts.
- Contacts stick closed and the unit runs nonstop.
- Chattering or intermittent compressor operation.
Shipping & Returns
Ships same day before 3 PM CST. 30-day returns. 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