Negative. The coil pan should not melt under normal circumstances. You say the coil is mounted on a Trane XE80 gas furnace? I'd have a service tech check the high limit control operation. It takes a fairly high temperature with natural gas as the fuel to melt the pan. It's not all that uncommon on an oil furnace if the pan isn't built for it and the installer mounts the coil less than 6-inches above the heat exchanger but for natural gas, there's definitely something amiss.
If YOU want change, YOU have to first change.
If you are waiting for the 'other guy' to change first, just remember, you're the 'other guy's' other guy. To continue to expect real change when you keep acting the same way as always, is folly. Won't happen. Real change will only happen when a majority of the people change the way they vote!