Tempstar Contactor for T4A330GKD300 — 1-Pole 30A 24V w/Shunt | Ships Today
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Overview
This OEM single-pole definite purpose contactor (Tempstar part number 1172472) is the electrically-controlled switch that energizes the compressor and condenser fan in your Tempstar T4A330GKD300 air conditioning unit. Rated for 30 amps with a 24-volt control coil and an integrated shunt, it closes when the thermostat calls for cooling and opens when the call ends. Contactors are one of the most common failure points in a condensing unit because the contacts arc and pit every time they cycle. A failing contactor shows up as a buzzing or chattering noise, pitted or welded contacts that keep the compressor running, or a unit that simply won't start because the contacts no longer make solid contact.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1172472 |
| Type | Definite Purpose Contactor, 1-Pole, w/Shunt |
| Brand | Tempstar |
| Amp Rating | 30A |
| Coil Voltage | 24V |
| Poles | 1 |
Compatibility
Engineered as a direct OEM replacement for the Tempstar T4A330GKD300 condensing unit. The same 1172472 contactor is shared across many ICP-family condensers (Tempstar, Heil, Comfortmaker) — verify your existing contactor is a 1-pole, 30A, 24V unit before ordering.
Installation Guide
- Safety First — Disconnect power at the outdoor disconnect and breaker, then verify zero voltage with a multimeter across the line terminals.
- Access — Remove the condenser unit's electrical access panel.
- Document — Photograph all wire connections before disconnecting anything.
- Remove — Note the line, load, and 24V coil wires, disconnect them, then unscrew the old contactor from the bracket.
- Install — Mount the new contactor and reconnect each wire exactly per your photo.
- Test — Restore power and confirm the contactor pulls in cleanly on a cooling call with no buzzing.
Signs You Need a Replacement
- Loud humming, buzzing, or chattering from the contactor
- Pitted, blackened, or welded contacts
- Compressor won't shut off (stuck closed) or won't start (won't close)
- Visible arcing or a burnt smell at the contactor
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