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Direct factory replacement HH18HA515 for the Carrier 58TP0A090V211220, matched to the original build sheet. Fitment guaranteed — free returns if it doesn't fit.
| Type | limit switch (high-temp overheat cutout / snap-disc) |
| Xref | LF18-094; 4349806 (per hvacdirect.com) |
| Note | Type = limit switch confirmed across partstown.com ('SWITCH, LIMIT' - interrupts power at high temp), hvacdirect.com, auersteel.com, ebay. HH18HA snap-disc family. NO open/close temperature or reset type published on any independent domain, so setpoint left unverified. Cross-refs LF18-094 / 4349806 from hvacdirect (single domain). |
| OEM Part Number | HH18HA515 |
| Brand | Carrier |
| Condition | New — genuine OEM |
Watch for: The unit fails to complete its normal cycle, visible wear, corrosion, or heat damage on the part, intermittent operation that worsens. Catching it early protects the components around it.
Swap the part, torque fasteners evenly, and route wires away from hot or moving surfaces. Run a complete cycle and verify normal operation before closing the panel.
Is this the exact OEM part for my 58TP0A090V211220? Yes — verified factory fitment for that model.
Not sure of your model? Chat with Mike with the number from your unit's nameplate and we'll confirm before you order.