- HVAC
- Smoke and CO alarms
2-PITIDOS-AMBAR-40-S
FireAngel FA6813 two beeps and amber light on CO alarm: fault
Risk level
High
Professional inspection is recommended.
Urgency
High
Quick answer
Two rapid beeps with two amber flashes every 40 seconds mean the FireAngel FA6813 has a fault: it may not detect CO and must be replaced immediately. This is not a carbon monoxide alarm, but your home may be unprotected until you swap the unit.
Safety first
Stop and check this first
- An FA6813 signalling a fault may not detect a carbon monoxide leak: replace it right away instead of getting used to the beep.
- Do not open or tamper with the alarm to try to fix it: FireAngel warns this could cause electric shock or malfunction.
Safe checks you can perform
- Count the beeps and amber flashes for a few minutes
- Read the REPLACE BY date and the batch number
- Fit a new alarm and test it with the Test button
Leave these tasks to a qualified professional
- Do not attempt this professional task: Warranty case with FireAngel Technical Support
- Do not attempt this professional task: Boiler and stove servicing in the meantime
What a technician must be able to justify
Technician visit
These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.
These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.
Warranty case with FireAngel Technical Support
What they doIf the alarm is within warranty, FireAngel Technical Support assesses replacing the FA6813 that shows a fault.
They must show youthe batch number, the REPLACE BY date and the video of the two-beep pattern.
In writingthe case number, the accepted purchase date and whether a replacement will be sent.
Boiler and stove servicing in the meantime
What they doA gas engineer checks your fuel-burning appliances, especially if you will be without a working CO alarm for a few days.
They must show youthe state of the ventilation and flue of each appliance checked.
In writingthe service date and any defect found on the appliances.
Before accepting a part or repair
Nothing has been shown yet. Do not accept a part swap based on the code alone.
Follow these steps
Note: Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.
Count the beeps and amber flashes for a few minutes
- Who:
- you, standing next to the alarm without touching anything.
- How:
- listen through several 40-second cycles and watch the amber light: one means low battery, two rapid ones mean fault and three rapid ones mean end of life according to the manual's table.
- Result that matters:
- knowing whether you need fresh batteries or a whole new alarm.
- If you hear two beeps and see two amber flashes:
- it is the fault signal, so plan the replacement.
- If it is a single beep with one amber flash:
- fit fresh AA alkaline batteries as the manual recommends.
- Evidence to keep:
- a video of a couple of cycles with sound.
Evidence: FA6813 Carbon Monoxide Alarm User Manual
Read the REPLACE BY date and the batch number
- Who:
- you, looking at the label on the alarm itself.
- How:
- find the date next to the REPLACE BY marking, which is when FireAngel says to change the unit, and note the batch number the manual asks you to keep for Technical Support.
- Result that matters:
- knowing whether the alarm is still under warranty and how much life it had left.
- If the date has not been reached:
- contact FireAngel Technical Support in case the warranty applies.
- If the date has passed:
- replace it straight away, it has outlived its 10-year life.
- Evidence to keep:
- a clear photo of the label showing date and batch.
Evidence: FA6813 Carbon Monoxide Alarm User Manual
Fit a new alarm and test it with the Test button
- Who:
- you, with a new FA6813 or another approved CO alarm.
- How:
- install it following its manual, press and hold Test and check that it sounds and that the red LED flashes 4 times; FireAngel accepts no other test method.
- Result that matters:
- getting the home monitored for carbon monoxide again as soon as possible.
- If the new unit passes the test:
- write the install date in the space the manual provides.
- If the new unit does not sound or flash either:
- contact Technical Support before relying on it.
- Evidence to keep:
- the install date and the test result.
Evidence: FA6813 Carbon Monoxide Alarm User Manual
Still not solved
If the error persists, stop here. See what the technician must do and show you.
Where this code applies
A code is meaningful only inside the right product and version context.
Primary scope
- System
- HVAC
- Brand
- FireAngel
- Product type
- Smoke and CO alarms
Known code variants
- FireAngel 2 rapid beeps amber
- FireAngel amber light two flashes
- FireAngel CO alarm fault
- FireAngel detector CO fallo
- FireAngel dos pitidos rápidos luz naranja
- FireAngel FA6813 beeping every 40 seconds
- FireAngel FA6813 dos pitidos
- FireAngel FA6813 pita cada 40 segundos
- FireAngel FA6813 two beeps
- FireAngel luz ámbar dos destellos
What it means
In section 5 of the FireAngel FA6813 manual, two rapid beeps and two amber flashes every 40 seconds are listed as 'Fault': the alarm has found a problem with its sensor or circuitry, may not detect CO and must be replaced immediately. FireAngel stresses that this warning does not mean carbon monoxide has been detected, and the chirp can repeat for up to 30 days. One beep every 40 seconds is low battery and three beeps are end of life. The pattern alone never proves which part has failed, and other models may use different signals.
Warnings and stop conditions
- Highsource verified
An FA6813 signalling a fault may not detect a carbon monoxide leak: replace it right away instead of getting used to the beep.
Evidence: FA6813 Carbon Monoxide Alarm User Manual
- Mediumsource verified
Do not open or tamper with the alarm to try to fix it: FireAngel warns this could cause electric shock or malfunction.
Evidence: FA6813 Carbon Monoxide Alarm User Manual
Symptoms and causes
Probable causes · in order
- Sensor or circuit self-checkCommon
FireAngel explains that the FA6813 constantly checks the accuracy of its sensor and circuitry and uses this pattern when a setting is found to be incorrect.
Evidence: FA6813 Carbon Monoxide Alarm User Manual
- Location with dust, grease or chemicalsPossible
The manual says not to fit it in excessively dusty, dirty or greasy areas because dust, grease and household chemicals affect the sensor.
Evidence: FA6813 Carbon Monoxide Alarm User Manual
- Temperature outside the working rangeLess common
FireAngel recommends a room between -10 °C and 40 °C and warns that use outside that range will reduce product life.
Evidence: FA6813 Carbon Monoxide Alarm User Manual
Virtual technician
Does 2-PITIDOS-AMBAR-40-S still appear after these checks?
Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.
Sources and technical references
- 1
FA6813 Carbon Monoxide Alarm User Manual
FireAngel · 2023 · manual
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