Heil Quaker ICP R02R006 Limit Switch
The Heil Quaker ICP R02R006 Limit Switch is a critical OEM safety component engineered for International Comfort Products (ICP) and Heil high-efficiency furnaces. This 7-inch furnace limit switch features an L150-20F temperature rating, meaning it is calibrated to open the circuit when the heat exchanger cabinet reaches 150?F and automatically closes?or resets?once the temperature drops by 20?F. As an auto-reset limit control, it replaces failing or high-resistance sensors that cause short-cycling or "limit circuit lockout" codes on the furnace control board. When diagnosing furnace overheating issues, ensuring the proper 7-inch insertion depth is vital for accurate sensing within the airflow stream. This OEM ICP replacement part provides the exact thermal response curve required to maintain equipment integrity and prevent premature thermal stress on the heat exchanger, ensuring the system operates within manufacturer-specified parameters.
Key Benefits for Technicians
- Precise Thermal Calibration: The L150-20F rating ensures the burner circuit breaks exactly at 150?F, preventing dangerous over-temperature conditions.
- OEM Compatibility: Direct drop-in replacement for Heil Quaker R02R006, eliminating the need for mounting bracket modifications in the field.
- Automatic Reset Function: Once the plenum cools, the automatic reset furnace switch restores the 24V signal to the gas valve without manual intervention.
- 7-Inch Probe Length: Designed specifically for deeper cabinet configurations where standard switches cannot accurately monitor core temperatures.
- Reliable Safety Integration: Prevents furnace operation during restricted airflow events, such as a clogged filter or a failing blower motor.
Common Questions
How do I know if my R02R006 limit switch is bad?
If your furnace blower runs constantly while the burners stay off, or if you see a "limit circuit open" fault code (often 4 flashes on many ICP boards), check for continuity across the terminals. If the switch is open at room temperature, it has failed and requires replacement.
Can I use a shorter probe if the 7-inch version is unavailable?
It is not recommended. The R02R006 is specified by the manufacturer at a 7-inch length to reach a specific point in the heat exchanger's airflow. A shorter probe may not detect high-heat conditions quickly enough, potentially leading to equipment damage.
What causes this limit switch to trip frequently?
Frequent tripping is usually a symptom of airflow restriction. Check for dirty air filters, blocked return air grilles, or a build-up of debris on the evaporator coil before replacing the switch, as these issues force the L150-20F limit to engage.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Heil Quaker ICP R02R006 Limit Switch
The Heil Quaker ICP R02R006 Limit Switch is a critical OEM safety component engineered for International Comfort Products (ICP) and Heil high-efficiency furnaces. This 7-inch furnace limit switch features an L150-20F temperature rating, meaning it is calibrated to open the circuit when the heat exchanger cabinet reaches 150?F and automatically closes?or resets?once the temperature drops by 20?F. As an auto-reset limit control, it replaces failing or high-resistance sensors that cause short-cycling or "limit circuit lockout" codes on the furnace control board. When diagnosing furnace overheating issues, ensuring the proper 7-inch insertion depth is vital for accurate sensing within the airflow stream. This OEM ICP replacement part provides the exact thermal response curve required to maintain equipment integrity and prevent premature thermal stress on the heat exchanger, ensuring the system operates within manufacturer-specified parameters.
Key Benefits for Technicians
- Precise Thermal Calibration: The L150-20F rating ensures the burner circuit breaks exactly at 150?F, preventing dangerous over-temperature conditions.
- OEM Compatibility: Direct drop-in replacement for Heil Quaker R02R006, eliminating the need for mounting bracket modifications in the field.
- Automatic Reset Function: Once the plenum cools, the automatic reset furnace switch restores the 24V signal to the gas valve without manual intervention.
- 7-Inch Probe Length: Designed specifically for deeper cabinet configurations where standard switches cannot accurately monitor core temperatures.
- Reliable Safety Integration: Prevents furnace operation during restricted airflow events, such as a clogged filter or a failing blower motor.
Common Questions
How do I know if my R02R006 limit switch is bad?
If your furnace blower runs constantly while the burners stay off, or if you see a "limit circuit open" fault code (often 4 flashes on many ICP boards), check for continuity across the terminals. If the switch is open at room temperature, it has failed and requires replacement.
Can I use a shorter probe if the 7-inch version is unavailable?
It is not recommended. The R02R006 is specified by the manufacturer at a 7-inch length to reach a specific point in the heat exchanger's airflow. A shorter probe may not detect high-heat conditions quickly enough, potentially leading to equipment damage.
What causes this limit switch to trip frequently?
Frequent tripping is usually a symptom of airflow restriction. Check for dirty air filters, blocked return air grilles, or a build-up of debris on the evaporator coil before replacing the switch, as these issues force the L150-20F limit to engage.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Heil Quaker ICP R02R006 Limit Switch is a critical OEM safety component engineered for International Comfort Products (ICP) and Heil high-efficiency furnaces. This 7-inch furnace limit switch features an L150-20F temperature rating, meaning it is calibrated to open the circuit when the heat exchanger cabinet reaches 150?F and automatically closes?or resets?once the temperature drops by 20?F. As an auto-reset limit control, it replaces failing or high-resistance sensors that cause short-cycling or "limit circuit lockout" codes on the furnace control board. When diagnosing furnace overheating issues, ensuring the proper 7-inch insertion depth is vital for accurate sensing within the airflow stream. This OEM ICP replacement part provides the exact thermal response curve required to maintain equipment integrity and prevent premature thermal stress on the heat exchanger, ensuring the system operates within manufacturer-specified parameters.
Key Benefits for Technicians
- Precise Thermal Calibration: The L150-20F rating ensures the burner circuit breaks exactly at 150?F, preventing dangerous over-temperature conditions.
- OEM Compatibility: Direct drop-in replacement for Heil Quaker R02R006, eliminating the need for mounting bracket modifications in the field.
- Automatic Reset Function: Once the plenum cools, the automatic reset furnace switch restores the 24V signal to the gas valve without manual intervention.
- 7-Inch Probe Length: Designed specifically for deeper cabinet configurations where standard switches cannot accurately monitor core temperatures.
- Reliable Safety Integration: Prevents furnace operation during restricted airflow events, such as a clogged filter or a failing blower motor.
Common Questions
How do I know if my R02R006 limit switch is bad?
If your furnace blower runs constantly while the burners stay off, or if you see a "limit circuit open" fault code (often 4 flashes on many ICP boards), check for continuity across the terminals. If the switch is open at room temperature, it has failed and requires replacement.
Can I use a shorter probe if the 7-inch version is unavailable?
It is not recommended. The R02R006 is specified by the manufacturer at a 7-inch length to reach a specific point in the heat exchanger's airflow. A shorter probe may not detect high-heat conditions quickly enough, potentially leading to equipment damage.
What causes this limit switch to trip frequently?
Frequent tripping is usually a symptom of airflow restriction. Check for dirty air filters, blocked return air grilles, or a build-up of debris on the evaporator coil before replacing the switch, as these issues force the L150-20F limit to engage.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
