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This OEM definite-purpose contactor (primary part 1171554 — CONTACTOR 2P 30A 24V; also covers 1172449 — CONTACTOR 3P 40A 24V, and 1183142 — CONTACTOR 3P 60A 24V) is the high-voltage switch that powers the compressor and condenser fan on your ICP / Tempstar / Heil RGS240HDFA0AAAA rooftop gas-electric package unit. When the thermostat calls for cooling, the 24-volt control coil pulls the contacts closed and sends line voltage to the compressor. Over time the contacts pit, arc, and weld, or the coil burns out. A failed contactor leaves the compressor unable to start — or, in the worst case, stuck running because the contacts have welded shut. Common symptoms include a clicking or buzzing contactor that won't pull in, chattering contacts, visible pitting or burn marks, and a compressor that won't shut off.
| Spec | Value |
|---|---|
| OEM Part Numbers | 1171554 (2P 30A), 1172449 (3P 40A), 1183142 (3P 60A) |
| Type | Definite-Purpose Contactor |
| Brand | ICP / Tempstar / Heil |
| Coil Voltage | 24 VAC |
| Amperage | 30A (2-pole) / 40A & 60A (3-pole) |
| Poles | 2-Pole & 3-Pole options |
| Fits Model | RGS240HDFA0AAAA |
Direct OEM replacement for the ICP / Tempstar / Heil RGS240HDFA0AAAA rooftop gas-electric package unit. Match the pole count and amperage of your existing contactor — confirm part number 1171554, 1172449, or 1183142 against the unit data plate before ordering.
Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.