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Honeywell Sensepoint XCD Gas Detector

Honeywell Sensepoint XCD Gas Detector Alarm 1: 1st alarm icon blinking

The gas concentration has reached the first alarm threshold, causing the detector to trigger a warning.

Safety first. This code involves a gas, flame or electrical hazard. Do not keep resetting it. Leave burner, gas train and high voltage work to a qualified technician. WERCS answers 24/7 at (877) 489-3727.
Code
Alarm 1
Name
1st alarm icon blinking
Controller
Honeywell Sensepoint XCD Gas Detector
Type
Gas alarm
What it does
Critical alarm
Risk
RED Specialist territory
Reset
Clears on its own when the condition goes away
Source
The manufacturer's manual (subscribers see which manual and page)

Updated November 4, 2026

How to fix it

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  • What to do next, in plain words
  • Which manufacturer manual it comes from, linked
  • The step by step check for this problem, one check at a time
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Questions about this code

What does Honeywell Sensepoint XCD Gas Detector Alarm 1 mean?

The gas concentration has reached the first alarm threshold, causing the detector to trigger a warning.

Is Honeywell Sensepoint XCD Gas Detector Alarm 1 dangerous?

It is graded red, specialist territory: it involves a burner, gas, flame or safety lockout, so leave the repair to a qualified technician.

How do I fix Honeywell Sensepoint XCD Gas Detector Alarm 1?

The manual's fix and the step by step check for this code are in WERCS Diagnose, plans from $49 a month. For help right now, WERCS answers 24/7 at (877) 489-3727.

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