An E10 code typically points to an air switch issue

this primary heat exchanger offers superior thermal conductivity and corrosion resistance to withstand the rigorous cycling of commercial and residential gas-fired systems

Avoid installing it in direct line-of-sight of the heat exchanger or cooling coil to prevent premature or inaccurate sensing

The Browning 5VX690 is a high-performance cogged V-belt engineered for demanding HVACR applications requiring high horsepower capacity in a compact footprint

The Aprilaire 4602 is used for units built after May 2005 (specifically September 2007 for the standard almond frame)

Fireye UV1AL-6 Scanner L99H008 An E10 code typically pointsThe Fireye UV1AL 6 is a non self checking ultraviolet flame scanner designed for use with Fireye Flame Monitor, BurnerLogix, and MicroM control systems. This industrial flame detector utilizes a high sensitivity UV tube to monitor gas and oil flames in automated burner applications. Featuring a 1 2" NPT mounting connection and a 6 foot integrated shielded cable, the UV1AL 6 ensures reliable signal transmission back to the primary flame safeguard