Carrier HVAC HH18HA502 Hi Limit Switch, Auto Reset, 140-180F
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The Carrier HH18HA502 Hi Limit Switch is a genuine OEM protective component designed to safeguard your furnace from damage caused by overheating. When temperatures exceed safe operating thresholds, this switch detects the excess heat and responds automatically — helping to prevent costly system damage and ensuring consistent, reliable performance.
Key Features
- Auto Reset Functionality: Automatically resets once temperatures return to a safe range, reducing the need for manual intervention
- Temperature Range: Operates within a 140°F to 180°F range for precise thermal protection
- Genuine OEM Component: Real OEM-quality construction ensures reliable control and performance when it matters most
- Product Type: Hi Limit Switch
- Common Equipment Type: Furnace Parts
How It Works
The HH18HA502 Hi Limit Switch continuously monitors furnace temperatures during operation. If the heat rises beyond the designated safe threshold, the switch activates to interrupt the heating cycle, protecting internal components from overheating damage. Once temperatures normalize, the auto reset feature restores normal operation without requiring manual reset.
Compatible Models
This hi limit switch is compatible with a range of popular Carrier furnace units, including:
- 58CTA070 11108
- 58CTA070 10108
- 58CTA070 12108
- Additional compatible models listed in the FITS MODELS section below
Dimensions
| Length: | 2.3" |
| Width: | 2.0" |
| Height: | 1.5" |
Part Carrier HVAC HH18HA502 Hi Limit Switch, Auto Reset, 140-180F fits 0 models
The Carrier HH18HA502 Hi Limit Switch is a genuine OEM protective component designed to safeguard your furnace from damage caused by overheating. When temperatures exceed safe operating thresholds, this switch detects the excess heat and responds automatically — helping to prevent costly system damage and ensuring consistent, reliable performance.
Key Features
- Auto Reset Functionality: Automatically resets once temperatures return to a safe range, reducing the need for manual intervention
- Temperature Range: Operates within a 140°F to 180°F range for precise thermal protection
- Genuine OEM Component: Real OEM-quality construction ensures reliable control and performance when it matters most
- Product Type: Hi Limit Switch
- Common Equipment Type: Furnace Parts
How It Works
The HH18HA502 Hi Limit Switch continuously monitors furnace temperatures during operation. If the heat rises beyond the designated safe threshold, the switch activates to interrupt the heating cycle, protecting internal components from overheating damage. Once temperatures normalize, the auto reset feature restores normal operation without requiring manual reset.
Compatible Models
This hi limit switch is compatible with a range of popular Carrier furnace units, including:
- 58CTA070 11108
- 58CTA070 10108
- 58CTA070 12108
- Additional compatible models listed in the FITS MODELS section below
Dimensions
| Length: | 2.3" |
| Width: | 2.0" |
| Height: | 1.5" |
Part Carrier HVAC HH18HA502 Hi Limit Switch, Auto Reset, 140-180F fits 0 models