I had an IPC & BFR the other night and my new heater valve was stuck slightly open. It was a warm night, and hot air blowing on my feet was pretty miserable. Since I’m leaving for Oshkosh in less than a week, I really wanted to fix this before flying across the hot midwest.
Unfortunately, getting to the heater valve requires pulling out most of the forward interior, seat pans, doghouse and tunnel cover. Once I was in there, it was about a two minute fix to determine what was sticking and fix it. The corner of the lower door flange was digging in to the bottom of the heater valve. A very slight bend of the lower flange fixed the issue nicely.
