Silent Hill Townfall Auxiliary Lines (AUX) Switch Puzzle
Updated 2026-10-06 · Category: Puzzles
The AUX puzzle is in the AUX room of SWDP – Different, Chapter 15, Trying Again. Open the room with the AUX Key from the control-room locker (0825), insert the AUX Disk in the computer and read Auxiliary Lines. The wall has three lines of switches. Painted stripes beside each switch show its line: one stripe for Line 1, two for Line 2, three for Line 3. Set each switch vertical or horizontal in the order below, following the painted arrows. A line's light turns green only when every switch on it is right.
A plain text diagram of the answer, not a game screenshot. The details come from the guides cited on this page.
Silent Hill Townfall Wiki · original text diagram, no AI or game assets · Material statementSwitch positions for all three lines
V = vertical, H = horizontal. Read each line in the direction of the arrows painted on the wall, starting from its first switch.
| Line | Stripes | Switches | Positions in order |
|---|---|---|---|
| Line 1 | One | 8 | V · H · V · V · H · V · H · V |
| Line 2 | Two | 9 | V · H · H · H · V · H · H · V · V |
| Line 3 | Three | 8 | H · V · V · V · H · V · H · V |
The positions come from one source, FinalBoss. PowerPyx confirms the method (match Auxiliary Lines, count the painted stripes, follow the arrows, wait for the green light) but does not list the positions. If a line stays red, compare your wall with the Auxiliary Lines file on the AUX computer: the file is the in-game answer.
Before the switches: AUX Key and AUX Disk
The control-room panel and Valve B
- In the control room, enter OPEN + VALVE + 245 and START + FILTER + 130 on the panel. It gives you 0825.
- Open the locker to the right of the panel with 0825 and take the AUX Key.
- Take the elevator down and open the AUX room in the northwest corner of that floor.
- Take the AUX Disk from the top-left shelf of the cabinet, insert it on the left of the computer and read the Auxiliary Lines file.
How to read the wall
- Count the white stripes painted beside a switch to know which line it belongs to
- Lines 1 and 2 start from the wall facing away from the computer
- Line 3 starts from the opposite wall, so do not carry on in the direction you finished Line 2
- Follow the painted arrows to know which switch comes next in a line
- The green light sits by the last switch of each line and only comes on when that whole line is right
A plain text diagram summarising this section, not a game screenshot.
Silent Hill Townfall Wiki · original text diagram, no AI or game assets · Material statementWhy Line 2 stays red
Line 2 has nine switches; Lines 1 and 3 have eight. FinalBoss calls this the most common reason the puzzle fails: players stop after eight and the last vertical switch on Line 2 is never set.
The other usual mistake is starting Line 3 from the wrong wall, which shifts every position by one.
Back to the control room
With all three lights green, go back up to the control-room panel and enter the remaining commands: FLUSH + AUXILIARY + 246, STOP + REGULATOR + 781 and UNLOCK + DOOR + 592. After Valve F, the Clamp Release Procedure prints and the chapter ends at the red crank.
Silent Hill Townfall FAQ
How do you solve the auxiliary lines puzzle in Silent Hill Townfall?
- Match each wall switch to the Auxiliary Lines file. One stripe marks Line 1, two Line 2, three Line 3. Follow the arrows and set each switch vertical or horizontal until all three lights are green.
Where is the AUX Key?
- In the locker to the right of the SWDP control-room panel. It opens with 0825, which the panel gives you after the Valve B and filter commands.
Why is one line still red?
- Usually Line 2: it has nine switches, not eight. Or Line 3 was started from the wrong wall.
