Outrigger Not Deployed or Pin Switch Fault
The WACKER-13 (Wacker Neuson) EV fault code means: Outrigger Not Deployed or Pin Switch Fault. This is a serious severity code.
- Keep driving?
- Yes, but fix soon
- DIY difficulty
- moderate
- Estimated cost
- $30-$120 DIY for a replacement limit switch and connector repair. Pro shop diagnosis and switch replacement typically $150-$350 depending on labor rate and whether wiring repair is needed.
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Common Symptoms
- Panel displays fault code 13 and mast raise is blocked or aborted
- Yellow or red fault indicator is lit on the operator panel display
- Mast will not extend even though outriggers appear to be physically deployed
- Unit beeps repeatedly when you attempt to raise the mast
- Outrigger pin indicator light does not illuminate green after pinning
- Control panel shows STOP or refuses to transition to RUN state during mast raise sequence
- Fault clears when you wiggle the outrigger pin or limit switch harness connector
Probable Causes (Ranked by Likelihood)
- Outrigger pin not fully seated in the deployed hole, so limit switch never trips Very Likely
- Limit switch plunger or magnetic reed switch dirty, corroded, or physically damaged Very Likely
- Wiring harness to outrigger limit switch chafed, pinched, or connector has moisture intrusion Likely
- Limit switch failed open internally, reads as unpinned even when pin is correct Likely
- One or more outriggers not leveled or fully extended before pinning, preventing full pin travel Possible
- Controller logic fault or corrupted input channel requiring a power cycle to reset Less Likely
Step-by-Step Diagnostic Procedure
Start with the obvious. Walk around all four outriggers and confirm every pin is fully pushed through the frame hole and the clip or hairpin is seated. A pin that is 90 percent in will not trip the switch.
Check that the trailer is on reasonably level ground and each outrigger pad is making solid contact. If an outrigger leg is floating, the pin angle can bind and prevent full insertion.
Locate the limit switch on each outrigger arm, usually a small plunger-type or magnetic reed switch mounted on the outrigger weldment near the pin hole. Inspect for mud, rust, or physical damage. Clean with contact cleaner and check that the plunger moves freely.
With the unit powered on and fault code 13 showing, manually depress the suspect limit switch plunger by hand or insert a small screwdriver past dirt buildup. If the fault clears momentarily, the switch is present but fouled or misaligned.
Disconnect the limit switch connector and measure DC voltage at the harness side with a multimeter. You should see battery supply voltage (typically 12V DC) on the feed wire when the controller is powered. No voltage indicates a wiring break or blown fuse in the outrigger interlock circuit. Check the control panel fuse block for a blown fuse labeled OUTRIGGER or INTERLOCK.
With switch disconnected, use your multimeter on continuity mode and measure across the switch terminals while pressing the plunger. A healthy normally-open switch closes (beeps) when pressed. A healthy normally-closed switch opens (stops beeping) when pressed. Compare to the switch type installed. Replace if it fails this test.
Inspect the wiring loom from each outrigger switch back to the trailer frame junction box. Look for chafe points where the harness crosses the trailer frame hinge or the outrigger pivot. Repair any damaged insulation with heat-shrink and confirm continuity end to end.
After any repair, power cycle the unit fully using the operator panel display, confirm all pins are seated, and attempt mast raise again. If fault 13 returns with all pins verified good and switches tested good, the controller input channel may need inspection by a Wacker Neuson dealer technician.
Frequently Asked Questions
What does Wacker Neuson code 13 mean?
Code 13 tells you the controller does not see a confirmed signal from the outrigger pin limit switches. The machine uses those switches as a safety interlock. It will not allow the mast to raise until it gets a good signal from every outrigger, confirming the unit is stabilized and pinned.
Can the light tower still operate with code 13 active?
The trailer can move and the engine can run, but the mast raise function is blocked. You cannot get lights up until the fault is cleared. That is why severity is serious for a job site, even though the engine itself is fine.
How much does it cost to fix code 13?
If it is just a dirty or misaligned pin, fixing it costs nothing. A replacement outrigger limit switch typically runs $30 to $80 in parts. If you need a shop to trace and repair damaged wiring, expect $150 to $350 in total.
Will the light tower raise the mast next time if I ignore code 13?
No. The outrigger interlock is a hardwired safety block. The controller will refuse the mast raise command every time until the switches report properly pinned outriggers. You need to resolve the fault before the unit will work as intended.