Heil Quaker ICP 34335004 Limit Switch
Upgrade your system reliability with the Heil Quaker ICP 34335004 Limit Switch, a precise OEM replacement engineered for high-performance thermal regulation. Designed specifically for Heil, Quaker, and International Comfort Products (ICP) furnace units, this automatic reset limit switch is a critical safety component that monitors heat exchanger temperatures to prevent thermal overload. When the internal plenum temperature reaches its 110?F set point, the switch breaks the circuit to the gas valve to protect the heat exchanger from damage. Once the temperature drops to 90?F, the normally open circuit automatically resets, allowing the heating cycle to resume without manual intervention.
Featuring a rugged copper contact construction and screw terminal connectors, this 90-110?F limit control ensures low electrical resistance and secure 1-way circuit connections. It is a direct drop-in replacement for part number 34335004 (also referenced as HQ34335004TD) and is frequently used in residential heating models including Tempstar, Arcoaire, and Comfortmaker. This L110-20F rated switch provides the exact performance profile required by veteran technicians to resolve furnace short cycling or high-limit error codes caused by restricted airflow or component wear.
Key Benefits for Technicians:
- OEM Precision: Direct replacement for ICP part number 34335004 ensures exact mounting and thermal response without modifications.
- Reliable Auto-Reset: Eliminates nuisance manual resets by automatically closing the circuit at 110?F and reopening at 90?F.
- Enhanced Conductivity: High-grade copper contacts provide superior longevity and consistent switching in high-cycle environments.
- Secure Terminal Interface: Heavy-duty screw terminals allow for rapid installation and a vibration-resistant electrical bond.
- Broad Compatibility: Optimizes safety for Heil Quaker, Tempstar, and Sears furnace models requiring an L110-20F limit switch.
Common Questions:
What causes this limit switch to trip frequently?
Frequent tripping is often a result of restricted airflow, typically caused by a clogged air filter, blocked return vents, or a failing blower motor assembly. If the furnace cycles off shortly after ignition, verify the system's static pressure and filter condition.
Can I use this as a replacement for other ICP limit switches?
This switch is specifically rated for a 90-110?F range. You must match the temperature ratings on your existing switch (e.g., L110-20) to ensure the safety parameters of the furnace are maintained. Always verify the part number in your specific unit's service manual.
Does a 4-flash error code always mean the switch is bad?
On many ICP and Heil boards, a 4-flash code indicates a primary limit circuit open. While the switch itself may be faulty (showing no continuity when cool), the code more often indicates the switch is doing its job by reacting to a genuine overheating condition in the heat exchanger.
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.
Original: $50.78
-65%$50.78
$17.77Heil Quaker ICP 34335004 Limit Switch
Upgrade your system reliability with the Heil Quaker ICP 34335004 Limit Switch, a precise OEM replacement engineered for high-performance thermal regulation. Designed specifically for Heil, Quaker, and International Comfort Products (ICP) furnace units, this automatic reset limit switch is a critical safety component that monitors heat exchanger temperatures to prevent thermal overload. When the internal plenum temperature reaches its 110?F set point, the switch breaks the circuit to the gas valve to protect the heat exchanger from damage. Once the temperature drops to 90?F, the normally open circuit automatically resets, allowing the heating cycle to resume without manual intervention.
Featuring a rugged copper contact construction and screw terminal connectors, this 90-110?F limit control ensures low electrical resistance and secure 1-way circuit connections. It is a direct drop-in replacement for part number 34335004 (also referenced as HQ34335004TD) and is frequently used in residential heating models including Tempstar, Arcoaire, and Comfortmaker. This L110-20F rated switch provides the exact performance profile required by veteran technicians to resolve furnace short cycling or high-limit error codes caused by restricted airflow or component wear.
Key Benefits for Technicians:
- OEM Precision: Direct replacement for ICP part number 34335004 ensures exact mounting and thermal response without modifications.
- Reliable Auto-Reset: Eliminates nuisance manual resets by automatically closing the circuit at 110?F and reopening at 90?F.
- Enhanced Conductivity: High-grade copper contacts provide superior longevity and consistent switching in high-cycle environments.
- Secure Terminal Interface: Heavy-duty screw terminals allow for rapid installation and a vibration-resistant electrical bond.
- Broad Compatibility: Optimizes safety for Heil Quaker, Tempstar, and Sears furnace models requiring an L110-20F limit switch.
Common Questions:
What causes this limit switch to trip frequently?
Frequent tripping is often a result of restricted airflow, typically caused by a clogged air filter, blocked return vents, or a failing blower motor assembly. If the furnace cycles off shortly after ignition, verify the system's static pressure and filter condition.
Can I use this as a replacement for other ICP limit switches?
This switch is specifically rated for a 90-110?F range. You must match the temperature ratings on your existing switch (e.g., L110-20) to ensure the safety parameters of the furnace are maintained. Always verify the part number in your specific unit's service manual.
Does a 4-flash error code always mean the switch is bad?
On many ICP and Heil boards, a 4-flash code indicates a primary limit circuit open. While the switch itself may be faulty (showing no continuity when cool), the code more often indicates the switch is doing its job by reacting to a genuine overheating condition in the heat exchanger.
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
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Description
Upgrade your system reliability with the Heil Quaker ICP 34335004 Limit Switch, a precise OEM replacement engineered for high-performance thermal regulation. Designed specifically for Heil, Quaker, and International Comfort Products (ICP) furnace units, this automatic reset limit switch is a critical safety component that monitors heat exchanger temperatures to prevent thermal overload. When the internal plenum temperature reaches its 110?F set point, the switch breaks the circuit to the gas valve to protect the heat exchanger from damage. Once the temperature drops to 90?F, the normally open circuit automatically resets, allowing the heating cycle to resume without manual intervention.
Featuring a rugged copper contact construction and screw terminal connectors, this 90-110?F limit control ensures low electrical resistance and secure 1-way circuit connections. It is a direct drop-in replacement for part number 34335004 (also referenced as HQ34335004TD) and is frequently used in residential heating models including Tempstar, Arcoaire, and Comfortmaker. This L110-20F rated switch provides the exact performance profile required by veteran technicians to resolve furnace short cycling or high-limit error codes caused by restricted airflow or component wear.
Key Benefits for Technicians:
- OEM Precision: Direct replacement for ICP part number 34335004 ensures exact mounting and thermal response without modifications.
- Reliable Auto-Reset: Eliminates nuisance manual resets by automatically closing the circuit at 110?F and reopening at 90?F.
- Enhanced Conductivity: High-grade copper contacts provide superior longevity and consistent switching in high-cycle environments.
- Secure Terminal Interface: Heavy-duty screw terminals allow for rapid installation and a vibration-resistant electrical bond.
- Broad Compatibility: Optimizes safety for Heil Quaker, Tempstar, and Sears furnace models requiring an L110-20F limit switch.
Common Questions:
What causes this limit switch to trip frequently?
Frequent tripping is often a result of restricted airflow, typically caused by a clogged air filter, blocked return vents, or a failing blower motor assembly. If the furnace cycles off shortly after ignition, verify the system's static pressure and filter condition.
Can I use this as a replacement for other ICP limit switches?
This switch is specifically rated for a 90-110?F range. You must match the temperature ratings on your existing switch (e.g., L110-20) to ensure the safety parameters of the furnace are maintained. Always verify the part number in your specific unit's service manual.
Does a 4-flash error code always mean the switch is bad?
On many ICP and Heil boards, a 4-flash code indicates a primary limit circuit open. While the switch itself may be faulty (showing no continuity when cool), the code more often indicates the switch is doing its job by reacting to a genuine overheating condition in the heat exchanger.
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.
