Daikin-McQuay 036557700 Igniter/Flame Rod

The Daikin-McQuay 036557700 Igniter/Flame Rod is a critical OEM replacement part engineered for precision sequence of operation in high-efficiency Daikin HVAC systems. This dual-function component acts as both the hot surface igniter and the electrochemical flame sensor, ensuring the integrated furnace control (IFC) detects a stable flame within the microamp range required for safe burner operation. For technicians troubleshooting ignition failure or intermittent lockout codes, utilizing this genuine HVAC part prevents the common sensitivity issues associated with aftermarket alternatives, which often fail to provide the correct flame rectification signal. Designed for use in McQuay rooftop units and commercial air handlers, construction of the 036557700 focuses on high-temperature resistance to carbon buildup and ceramic insulation integrity, maintaining system uptime and reliable combustion cycles during high-demand heating seasons. This Daikin igniter is the exact specification required to restore factory performance and safety standards.

Key Benefits for Technicians

• Precise Flame Sensing: Provides accurate microamp feedback to the control board, preventing nuisance "no flame" lockouts.
• OEM Compatibility: Exact fit for Daikin-McQuay 036557700, eliminating the need for mounting bracket modifications in the field.
• Industrial Durability: Engineered with premium materials to withstand rapid thermal cycling and high-heat environments for extended service life.
• Rapid Ignition: Optimized resistance values ensure prompt ignition of the gas-air mixture, reducing unburned gas buildup.
• Simplified Diagnostics: Restores factory-spec electrical continuity, allowing for easier troubleshooting of the broader combustion system.

Common Questions

Can I clean the 036557700 instead of replacing it?
While light oxidation can sometimes be removed with a non-abrasive pad, we recommend replacing the flame rod if the ceramic insulator is cracked or if the metal probe shows significant pitting, as these issues cause unreliable flame rectification signals.

Will this work with older McQuay rooftop units?
Yes, the 036557700 is specifically designed for both modern Daikin and legacy McQuay HVAC equipment. Check your unit’s manual or contact us with your model number to confirm this is the correct part for your specific burner assembly.

What causes this igniter/flame rod to fail?
The most common causes are soot accumulation, cracked ceramic due to thermal shock, or high resistance at the connector pins. Replacing with a genuine Daikin-McQuay OEM part ensures the component interacts correctly with the system's safety limits.

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.