ICP Thermostat 75/55 for YD036GA — Crankcase Heater TSTAT OEM 14124800 | Ships Today

Overview

This ICP crankcase-heater thermostat (OEM part 14124800, rated 75/55) is a snap-disc temperature switch that controls the compressor crankcase heater on your YD036GA heat pump. It closes at roughly 55°F and opens near 75°F, energizing the crankcase heater in cold ambient conditions to prevent refrigerant migration and liquid slugging at compressor start. A failed thermostat leaves the heater on continuously (wasting energy) or never energized (risking compressor damage on cold starts).

Specifications

Compatibility

Direct OEM replacement for the ICP/Tempstar/Heil YD036GA and related units that originally used thermostat 14124800. Confirm the 75/55 temperature rating against your existing switch before ordering.

Installation Guide

1. Safety First — Disconnect power and verify zero voltage with a multimeter.
2. Access — Remove the service panel to reach the compressor area.
3. Document — Photograph the thermostat mounting location and wiring before removal.
4. Remove — Detach the spade connectors and unclip or unscrew the snap-disc from its mounting surface.
5. Install — Mount the new thermostat in firm contact with the same surface and reconnect the wires per your photo.
6. Test — Restore power and confirm the crankcase heater energizes only in cold conditions.

Signs You Need a Replacement

• Crankcase heater stays hot in warm weather
• Compressor knocks or slugs on cold-weather startup
• No continuity across the disc at expected temperatures
• Cracked or corroded thermostat body

Shipping & Returns

Ships same day on orders placed before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.