What the 1810 alarm means

The three-position enabling switch on the teach pendant reported an invalid state; manual motion is blocked in teach mode. We see this alarm constantly when servicing EFORT EC2-S controller + TSINO drives systems, and the first on-site pass usually pins down the cause.

Most common causes

  • Enable switch worn or contaminated
  • Switch held at an intermediate position too long
  • Pendant cable damage causing intermittent signals
  • Pendant drop damage
Field note: Based on our handling experience the first cause is the most frequent — use it as your starting point.

Step-by-step field fix

  1. Work the enable switch through its full travel several times
  2. Check the pendant cable for damage
  3. Try a known-good pendant to isolate the fault
  4. Replace the pendant if the switch is worn
  5. Never tape or bypass the enable switch — it is a life-safety device
Safety first: For EFORT 1810, this alarm is the safety circuit itself: jumpering a door switch or forcing a contactor removes the protection entirely - no protective action when something happens, and no defensible account of responsibility. The self-serviceable action is Work the enable switch through its full travel several times; anything past that falls under the e-stop chain and safety circuit and needs a certified engineer.

How we diagnose safety-chain faults on site

EFORT 1810 belongs to the safety chain & e-stop family. On EFORT 1810 the failing stage is e-stop circuit plus safety inputs on the EFORT robot controller - continuity of one series loop: e-stop buttons, door switches, light curtains, safety relays and the enabling device. We start reading EFORT 1810 at the pendant alarm list (four-digit codes, 1xxx / 3xxx / 4xxx segments).

The chain involved in EFORT 1810 runs: e-stop / door / curtain -> safety relay (dual channel) -> controller safety input -> motor-off and brake apply.

On EFORT 1810 the field usually reports Enable switch worn or contaminated, but the check that matters is not continuity: The point of a safety loop is not whether it conducts but whether both channels conduct together. The relay compares channels; if one opens tens of milliseconds early it latches as a channel fault. The commonest causes are plain: oxidised door-switch contacts raising contact resistance, or one loose terminal. We measure segment by segment - pendant e-stop, panel e-stop, external e-stop, safety door - and lock onto whichever segment reads differently on the two channels.

Field notes on this page cover EFORT 1810 (Enable Switch Fault (EC2-S)); written by the Henghuan repair team, updated 2026-10-01.

Can't clear it yourself? Contact us for remote diagnosis

Provide the alarm code, model and the action being performed at the alarm. Our engineers have seen EFORT 1810 many times and judge fast; phone and video remote diagnosis are both free.

Get a Free Remote Diagnosis See Repair Services

Hotline: +86-20-39029800 · WhatsApp: +86-188-1886-2860

Related Safety Chain & E-Stop alarms

1801 — Safety Circuit Major Fault (EC2-S) 1802 — Emergency Stop Active (EC2-S)
Same family: this code belongs to the Safety chain & e-stop alarms family - the page collects all Safety chain & e-stop-family codes we have handled, with the common inspection order and spares.
Other brands: we also keep field-fix libraries for JAKA · AUBO · ROKAE and more — see the complete alarm code hub.

Frequently asked questions

QWhat does the EFORT 1810 alarm mean?

The three-position enabling switch on the teach pendant reported an invalid state; manual motion is blocked in teach mode. We see this alarm constantly when servicing EFORT EC2-S controller + TSINO drives systems, and the first on-site pass usually pins down the cause. EFORT 1810 sits in the safety chain & e-stop family; on our work orders the highest-frequency trigger for this code is "Enable switch worn or contaminated".

QCan I clear a EFORT 1810 alarm myself?

Whether EFORT 1810 clears on its own depends on the outcome of "Work the enable switch through its full travel several times". Finish the flow with "Never tape or bypass the enable switch — it is a life-safety device" to confirm EFORT 1810 - do not skip it. If that step is clean, the second most frequent cause on EFORT 1810 is "Switch held at an intermediate position too long". When EFORT 1810 keeps coming back it is not a one-off trigger - especially if Never tape or bypass the enable switch — it is a life-safety device is where you get stuck. Do not keep producing through EFORT 1810.

QA safety-chain fault like EFORT 1810 stops the line - how fast can you be here?

The commonest causes we see on EFORT 1810 are "Enable switch worn or contaminated, Switch held at an intermediate position too long, Pendant cable damage causing intermittent signals", so we stock the van against those. For EFORT 1810 specifically, we stock along the loop: safety relays, common door switches, e-stop buttons, light-curtain pairs and terminal blocks. For EFORT 1810, a safety-chain fault stops the whole line, so we rank it top priority and pre-triage by phone: door switch, e-stop or relay. Before we roll, tell us what EFORT 1810 shows on the pendant alarm list (four-digit codes, 1xxx / 3xxx / 4xxx segments) and what the machine was doing - phone or video triage is free.

The content on EFORT 1810 was written by Henghuan Robotics service engineers from hands-on repair experience. Alarm descriptions are our own reference summary and may differ by controller or software version — defer to EFORT documentation, or contact us to confirm. Henghuan is an independent service provider with no affiliation or endorsement by EFORT.