Using a 120V signal will fail to pull the contacts in

meeting EIA-456-A standards for safety and performance in 50/60 Hz applications

which can lead to mechanical failure

For the most accurate diagnostics

Use a multi-meter to check the resistance

Reznor 93389 Tubing Using a 120V signal willWhen you are servicing older Reznor unit heaters, precise ignition timing is critical for avoiding delayed ignition or pilot dropouts. The Reznor 93389 is a genuine OEM 8 3 4 inch carryover tubing specifically engineered for natural gas and propane furnace ignition systems. This aluminum lighter tube facilitates the smooth transfer of the pilot flame across the burner rack, ensuring all burner sections ignite simultaneously. A common failure point in