So my vulcan Bonaire heater stopped working last night.
Tried resetting from the control panel nothing. Tried resetting from the control box in the unit nothing. Cleaned out the return air fan, poked a bit of wire in the burners to clean out any carbon and wiped down the flame sensor still nothing.
These are the codes I'm getting.

Hc 01 is heating, but no idea what F12 is. My mate Google was no help here. Going by the led lights gas pressure and flame.

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