Started by TECH X, August 31, 2007, 11:49:20 PM
Quote from: TECH X on September 01, 2007, 03:56:16 PMI use my step bit to cut a hole under every coil, and I just use an inspection mirror to verify the coil is clean.Your right though, cased coils, like York, that sit directly on the furnace casing are hard to check. Like you said in the other post, removing the primary limit is about the only way. As long as my suction pressure is normal I don't worry too much.So overall, with the heat exchanger bible and this Inspector tool, do you find it as useful as they claim? Is it worth the $2000?Do you have the infrared model?