Quick answer: official Sandustry sources place the Condenser in the gas-to-liquid branch: Research says it converts gasses into liquids using Snow, and the Florinol page says you condense Florin with it to obtain Florinol. The first checks are containment, gas delivery, Snow support, and liquid output space.
First-principles rule: the Condenser only matters after the target gas reaches the machine, Snow support exists, and the liquid side has somewhere to go. Debug the branch in that order before changing the whole layout.
Condensing starts with keeping the target gas inside the route. If Steam or Florin leaks into open air, the machine may receive too little gas for the conversion step to matter.
Checkpoint: the gas stays enclosed around the processing area.
Decide what branch problem you are actually solving before you debug the machine: Florinol production, Steam handling, or another gas-to-liquid step linked from the official references.
Checkpoint: you can name the exact liquid this machine should produce next.
A Condenser that has no output room can look inactive. Give the liquid a path into storage, pipes, or the next processing step instead of letting it flood back into the same chamber.
Checkpoint: condensed liquid leaves instead of pooling around the machine.
If output feels too low, ask where the branch is leaking or stalling before adding more machines. Fix one concrete escape point or blockage before expanding the whole upstream line.
Checkpoint: one concrete loss point is fixed before the branch expands.
The Florinol page is explicit: you obtain Florinol by condensing Florin with the Condenser. If Florinol is missing, verify that Florin reaches the machine, Snow support is present, and the output side can carry the liquid away cleanly.
Steam and Depleted Steam are both listed on official pages as part of a Condenser path back toward the Water side. Treat enclosure, gas delivery, and output routing as the first checks before assuming the machine itself is wrong.
The Condenser needs two active contacts at the same time: a cold Thermal Buffer or Snow touching the top, and Steam or Florin touching the bottom. Condensation only happens when both the cooling source above and the gas input below are present together.
Check whether the gas branch is contained, whether the target gas really reaches the machine, whether Snow support is present, and whether the liquid output has a clear exit path.
Check containment first, then confirm the target gas is really reaching the machine, then make sure the liquid output has room to leave.
Because official sources place it on gas-to-liquid return paths for branches such as Florin to Florinol and Steam-family Water recovery.
Source note: This recommendation is source-based, not an independently benchmarked build.
Official source