Hydrotherm 04-1335 Thermocouple
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Hydrotherm 04-1335 Thermocouple

Hydrotherm 04-1335 Thermocouple

The Hydrotherm 04-1335 Thermocouple is a critical safety and operational component designed for high-performance gas-fired boilers and commercial water heaters. This Type K thermocouple is engineered to generate a precise millivolt signal in response to pilot flame heat, ensuring the gas valve remains energized during active combustion cycles. Built with a shielded cable and a ruggedized probe, the 04-1335 provides the structural integrity required for harsh industrial environments, including high-heat applications in ovens and kilns.

For service contractors, this OEM Hydrotherm part offers seamless integration with Hydrotherm temperature controllers, eliminating the signal drift often associated with generic alternatives. The fast thermal response time is essential for maintaining burner efficiency and preventing "pilot out" nuisance calls. Transitioning to this heavy-duty thermocouple ensures your HVAC temperature measurement remains accurate, protecting the heat exchanger from irregular firing patterns and improving overall residential heating system reliability.

Key Benefits

  • Rapid Thermal Response: Provides near-instantaneous voltage feedback to the gas control valve.
  • Industrial-Grade Shielding: Protects lead wires from electromagnetic interference and physical abrasion.
  • High-Temperature Durability: Rated for use in boilers, ovens, and kilns.
  • OEM Compatibility: Specifically calibrated for Hydrotherm heating systems to ensure safety and efficiency.

Common Questions

How do I test if my Hydrotherm 04-1335 is failing?
Perform a voltage test using a multimeter set to the DC millivolt scale. A healthy 04-1335 should typically produce between 20mV and 30mV when heated by a pilot flame. Any reading below 20mV suggests carbon buildup or internal degradation.

Is this thermocouple compatible with other gas valves?
While designed for Hydrotherm controllers, this Type K thermocouple can interface with various standard gas valves that accept millivolt inputs, provided the threading and lead length match your specific field requirements.

Why does my pilot flame go out immediately after releasing the knob?
This is often caused by a faulty millivolt signal from the thermocouple to the solenoid. If the 04-1335 is correctly positioned in the flame but fails to hold the valve open, the internal sensor element is likely spent and requires HVAC replacement parts.

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.

$26.06

Original: $74.46

-65%
Hydrotherm 04-1335 Thermocouple

$74.46

$26.06

Hydrotherm 04-1335 Thermocouple

The Hydrotherm 04-1335 Thermocouple is a critical safety and operational component designed for high-performance gas-fired boilers and commercial water heaters. This Type K thermocouple is engineered to generate a precise millivolt signal in response to pilot flame heat, ensuring the gas valve remains energized during active combustion cycles. Built with a shielded cable and a ruggedized probe, the 04-1335 provides the structural integrity required for harsh industrial environments, including high-heat applications in ovens and kilns.

For service contractors, this OEM Hydrotherm part offers seamless integration with Hydrotherm temperature controllers, eliminating the signal drift often associated with generic alternatives. The fast thermal response time is essential for maintaining burner efficiency and preventing "pilot out" nuisance calls. Transitioning to this heavy-duty thermocouple ensures your HVAC temperature measurement remains accurate, protecting the heat exchanger from irregular firing patterns and improving overall residential heating system reliability.

Key Benefits

  • Rapid Thermal Response: Provides near-instantaneous voltage feedback to the gas control valve.
  • Industrial-Grade Shielding: Protects lead wires from electromagnetic interference and physical abrasion.
  • High-Temperature Durability: Rated for use in boilers, ovens, and kilns.
  • OEM Compatibility: Specifically calibrated for Hydrotherm heating systems to ensure safety and efficiency.

Common Questions

How do I test if my Hydrotherm 04-1335 is failing?
Perform a voltage test using a multimeter set to the DC millivolt scale. A healthy 04-1335 should typically produce between 20mV and 30mV when heated by a pilot flame. Any reading below 20mV suggests carbon buildup or internal degradation.

Is this thermocouple compatible with other gas valves?
While designed for Hydrotherm controllers, this Type K thermocouple can interface with various standard gas valves that accept millivolt inputs, provided the threading and lead length match your specific field requirements.

Why does my pilot flame go out immediately after releasing the knob?
This is often caused by a faulty millivolt signal from the thermocouple to the solenoid. If the 04-1335 is correctly positioned in the flame but fails to hold the valve open, the internal sensor element is likely spent and requires HVAC replacement parts.

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

Shipping & Returns

Description

The Hydrotherm 04-1335 Thermocouple is a critical safety and operational component designed for high-performance gas-fired boilers and commercial water heaters. This Type K thermocouple is engineered to generate a precise millivolt signal in response to pilot flame heat, ensuring the gas valve remains energized during active combustion cycles. Built with a shielded cable and a ruggedized probe, the 04-1335 provides the structural integrity required for harsh industrial environments, including high-heat applications in ovens and kilns.

For service contractors, this OEM Hydrotherm part offers seamless integration with Hydrotherm temperature controllers, eliminating the signal drift often associated with generic alternatives. The fast thermal response time is essential for maintaining burner efficiency and preventing "pilot out" nuisance calls. Transitioning to this heavy-duty thermocouple ensures your HVAC temperature measurement remains accurate, protecting the heat exchanger from irregular firing patterns and improving overall residential heating system reliability.

Key Benefits

  • Rapid Thermal Response: Provides near-instantaneous voltage feedback to the gas control valve.
  • Industrial-Grade Shielding: Protects lead wires from electromagnetic interference and physical abrasion.
  • High-Temperature Durability: Rated for use in boilers, ovens, and kilns.
  • OEM Compatibility: Specifically calibrated for Hydrotherm heating systems to ensure safety and efficiency.

Common Questions

How do I test if my Hydrotherm 04-1335 is failing?
Perform a voltage test using a multimeter set to the DC millivolt scale. A healthy 04-1335 should typically produce between 20mV and 30mV when heated by a pilot flame. Any reading below 20mV suggests carbon buildup or internal degradation.

Is this thermocouple compatible with other gas valves?
While designed for Hydrotherm controllers, this Type K thermocouple can interface with various standard gas valves that accept millivolt inputs, provided the threading and lead length match your specific field requirements.

Why does my pilot flame go out immediately after releasing the knob?
This is often caused by a faulty millivolt signal from the thermocouple to the solenoid. If the 04-1335 is correctly positioned in the flame but fails to hold the valve open, the internal sensor element is likely spent and requires HVAC replacement parts.

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.

Hydrotherm 04-1335 Thermocouple | GSIstore