ICP Crankcase Heater Thermostat for YD018GA – 75/55°F OEM Thermostat | Ships Today
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Overview
This genuine OEM crankcase heater thermostat (part number 14124800) is a temperature-sensing switch that controls the compressor crankcase heater on the ICP / Tempstar / Heil YD018GA. Rated to switch at approximately 75°F / 55°F, it energizes the crankcase heater when outdoor/compressor temperatures drop and de-energizes it once the compressor warms up. The crankcase heater keeps refrigerant from migrating to and condensing in the compressor oil during cold standby — preventing oil dilution, foaming, and slugging at startup that can destroy a compressor. When this thermostat fails open, the heater never runs and the compressor is exposed to liquid migration in cold weather; when it fails closed, the heater runs continuously and wastes energy. It is a small, inexpensive component that protects a very expensive one.
Specifications
| Spec | Value |
|---|---|
| Part Number | 14124800 |
| Type | Crankcase Heater Thermostat / Temperature Switch |
| Brand | ICP / Tempstar / Heil |
| Switch Point | 75°F / 55°F (close/open) |
| Fit | OEM Replacement |
| Application | Compressor Crankcase Heater Control |
Compatibility
Direct OEM replacement for the ICP / Tempstar / Heil YD018GA and other ICP-family units that specify the 14124800 crankcase heater thermostat. Confirm the part number and switch temperature on your existing component before ordering.
Installation Guide
- Safety First – Disconnect power at the disconnect and breaker, then verify zero voltage with a multimeter.
- Access – Remove the condensing unit service panel and locate the thermostat clipped near the compressor or suction line.
- Document – Photograph the wiring and mounting location before disconnecting.
- Remove – Disconnect the leads and release the mounting clip/bracket from the compressor body or line.
- Install – Mount the new thermostat in the same location for good thermal contact and reconnect the leads per your photo.
- Test – Restore power and confirm the crankcase heater energizes when cold and the compressor operates normally on a call.
Signs You Need a Replacement
- Crankcase heater never warms even in cold weather (thermostat stuck open).
- Heater runs constantly and the unit draws power at idle (stuck closed).
- Compressor noise, slugging, or hard starts after cold standby.
- Switch shows no continuity change across its rated temperature range.
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