I’m stumped. I’m ready to call in a tech, but wanted to run this by the group first in case I’m overlooking something.
I’ve not been able to get the heater to fire this season, getting the infamous IF error. I’ve tested everything I can. The gas valve is good, I can see an orange glow in the combustion chamber from the igniter, I pulled the flame sensor and cleaned it (it wasn’t dirty, and the porcelain is intact). The gas pressure at the valve inlet is within spec. The manifold pressure appears good as well, although the valve shuts off before the pressure climbs completely into spec range.
As I see it, the only possibilities are the ignition control board and flame sensor. The ignition sequence occurs as it should, but there just isn’t any flame occurring apparently. Have I overlooked anything?
I’ve not been able to get the heater to fire this season, getting the infamous IF error. I’ve tested everything I can. The gas valve is good, I can see an orange glow in the combustion chamber from the igniter, I pulled the flame sensor and cleaned it (it wasn’t dirty, and the porcelain is intact). The gas pressure at the valve inlet is within spec. The manifold pressure appears good as well, although the valve shuts off before the pressure climbs completely into spec range.
As I see it, the only possibilities are the ignition control board and flame sensor. The ignition sequence occurs as it should, but there just isn’t any flame occurring apparently. Have I overlooked anything?
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