Tempstar Pressure Switch for TVH836GKA101 — OEM Draft Safety Switch | Ships Today
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Overview
This is the OEM Pressure Switch Assembly (part number 1188015) for the Tempstar TVH836GKA101. The pressure switch is a critical safety device that verifies proper draft and venting from the inducer motor before the control board permits ignition. It monitors negative pressure in the venting system and proves that combustion gases are being safely exhausted. When the inducer creates the correct vacuum, the switch closes and allows the heating sequence to continue. A failed or out-of-calibration pressure switch will lock out the furnace, producing a no-heat condition and a flashing diagnostic code. Common failure symptoms include the furnace failing to ignite, the inducer running continuously without ignition, short cycling on a draft fault, or a diagnostic code indicating a pressure switch open or stuck condition.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1188015 |
| Description | Pressure Switch Assembly |
| Type | Inducer Draft Safety Switch |
| Brand | Tempstar (ICP) |
| Fitment | OEM Direct Replacement |
| Fits Model | TVH836GKA101 |
Compatibility
This pressure switch assembly is the factory replacement for the Tempstar TVH836GKA101. It is also used across the ICP/Heil/Tempstar family of equipment that shares this venting platform. Always confirm the part number 1188015 against your existing switch before installing.
Installation Guide
- Safety First — Disconnect power at the furnace switch and breaker, then verify zero voltage with a multimeter.
- Access — Remove the furnace service panel to expose the inducer assembly and switch.
- Document — Photograph all wiring and the rubber tubing routing before disconnecting.
- Remove — Pull the wire spade terminals, disconnect the silicone draft tube, and unscrew the old switch from its bracket.
- Install — Mount the new switch, reconnect the draft tube and wiring per your photo, ensuring the tube is free of cracks or moisture.
- Test — Restore power and verify the furnace completes a full ignition cycle without a pressure fault.
Signs You Need a Replacement
- Furnace inducer runs but the burners never ignite.
- Diagnostic LED flashes a pressure switch (open/stuck) fault code.
- Intermittent no-heat calls or short cycling on draft errors.
- Switch contacts fail to close even with confirmed inducer draft.
Shipping & Returns
Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.
Shipping Information
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- Standard delivery: 2-5 business days
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