- Appliances
- Blood pressure monitors
Battery symbol low
Omron Battery symbol low on blood pressure monitor: batteries
Risk level
Low
Usually safe to check without specialist tools.
Urgency
Low
Quick answer
The battery symbol flashes on an Omron blood pressure monitor when the batteries are low, and stays lit when they are depleted. The manual says to replace all batteries with new ones. For any health question, consult your doctor.
Safety first
Stop and check this first
- For any health worry, go to your doctor: a battery warning on the monitor is not a medical opinion or a piece of data about your condition.
- Always replace all batteries together, as the manual asks, and do not keep measuring on depleted ones because the monitor may switch off by itself mid measurement.
Safe checks you can perform
- Replace all batteries at once with new ones
- Check that each battery sits the right way round
- Reset if another problem remains after the change
Leave these tasks to a qualified professional
- Do not attempt this professional task: Supervised battery replacement
- Do not attempt this professional task: Contact with the retailer or distributor if it persists
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.
Supervised battery replacement
What they doThe visitor checks with you that all batteries are replaced at once and sit with their polarity aligned, without opening anything else on the monitor.
They must show youthe new batteries fitted with the correct polarity and the monitor measuring through.
In writinghow many batteries were replaced and which type they were.
Contact with the retailer or distributor if it persists
What they doIf the problem remains after new batteries, correct polarity and the 30 second reset, the table says to contact the OMRON retail outlet or distributor.
They must show youthe monitor with new batteries and the display in the state that fails.
In writingthe model, the exact symptom and what is decided to do.
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.
Replace all batteries at once with new ones
- Who:
- you, before switching the device on again.
- How:
- replace all the batteries together: 4 on the M2, M3 and M6 upper arm models, and 2 new alkaline batteries on the RS4. Fit the new ones following the battery section of instruction manual 2 for your model.
- Result that matters:
- the battery symbol no longer flashing when you switch the monitor on.
- If the symbol disappears:
- the batteries were the source, and nothing more is needed.
- If the symbol or a blank display remains:
- go on to check the polarity of each battery.
- Evidence to keep:
- a photo of the symbol before the change and a note of how many batteries you fitted.
Evidence: OMRON M2 Basic (HEM-7121J-E) / X2 Basic (HEM-7121J-EO) Automatic Upper Arm Blood Pressure Monitor Instruction Manual 1 (EN) · OMRON M3 Comfort AFib (HEM-7196-FLE) Automatic Upper Arm Blood Pressure Monitor Instruction Manual 1 (EN) · OMRON M6 Comfort AFib (HEM-7380-E) Automatic Upper Arm Blood Pressure Monitor Instruction Manual 1 (EN) · OMRON RS4 (HEM-6181-E) Automatic Wrist Blood Pressure Monitor Instruction Manual 1 (EN)
Check that each battery sits the right way round
- Who:
- you.
- How:
- open only the battery cover and make sure each battery has its polarity aligned, as instruction manual 2 shows. It is the check the table offers when the display shows nothing.
- Result that matters:
- the display lighting up normally when you press START/STOP.
- If the display returns:
- one battery was reversed; note it for the next change.
- If still nothing shows with new batteries correctly fitted:
- continue with the reset test.
- Evidence to keep:
- a photo of the compartment with the batteries now in place.
Evidence: OMRON M3 Comfort AFib (HEM-7196-FLE) Automatic Upper Arm Blood Pressure Monitor Instruction Manual 1 (EN) · OMRON RS4 (HEM-6181-E) Automatic Wrist Blood Pressure Monitor Instruction Manual 1 (EN)
Reset if another problem remains after the change
- Who:
- you.
- How:
- press START/STOP to switch the monitor off and press it again to measure. If the problem continues, remove all batteries, wait 30 seconds and fit them again, as the table says for any other problem.
- Result that matters:
- the monitor measuring through without shutting off and without the battery symbol.
- If it measures well after the reset:
- note the date of the battery change.
- If it still fails:
- the table says to contact the place where you bought the OMRON monitor.
- Evidence to keep:
- a note of the battery change date and whether the measurement finished.
Evidence: OMRON M2 Basic (HEM-7121J-E) / X2 Basic (HEM-7121J-EO) Automatic Upper Arm Blood Pressure Monitor Instruction Manual 1 (EN) · OMRON M3 Comfort AFib (HEM-7196-FLE) Automatic Upper Arm Blood Pressure Monitor Instruction Manual 1 (EN) · OMRON M6 Comfort AFib (HEM-7380-E) Automatic Upper Arm Blood Pressure Monitor Instruction Manual 1 (EN) · OMRON RS4 (HEM-6181-E) Automatic Wrist Blood Pressure Monitor Instruction Manual 1 (EN)
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
- Appliances
- Brand
- Omron
- Product type
- Blood pressure monitors
Known code variants
- Battery symbol (depleted)
- Battery symbol (low)
- Battery symbol low
- Omron battery symbol flashing
- Omron blood pressure monitor batteries low
- Omron low battery symbol
- Omron pilas bajas
- Omron símbolo de pila parpadea
- Símbolo de pila (baja)
- Símbolo de pilas bajas/agotadas
What it means
The OMRON instruction manuals 1 for the RS4 wrist monitor and the M2, M3 and M6 upper arm monitors explain that the battery symbol flashes when batteries are low and appears steadily, or the monitor shuts off unexpectedly mid measurement, when they are depleted. The RS4 symbol list calls it “Battery symbol (low)”. It is a power notice, not a reading or health advice, so for any concern you should consult your doctor. Other models may differ, and the symbol alone does not prove the monitor is faulty.
Warnings and stop conditions
- Mediumeditorial warning
For any health worry, go to your doctor: a battery warning on the monitor is not a medical opinion or a piece of data about your condition.
Evidence: OMRON M6 Comfort AFib (HEM-7380-E) Automatic Upper Arm Blood Pressure Monitor Instruction Manual 1 (EN) · OMRON RS4 (HEM-6181-E) Automatic Wrist Blood Pressure Monitor Instruction Manual 1 (EN)
- Lowsource verified
Always replace all batteries together, as the manual asks, and do not keep measuring on depleted ones because the monitor may switch off by itself mid measurement.
Evidence: OMRON M3 Comfort AFib (HEM-7196-FLE) Automatic Upper Arm Blood Pressure Monitor Instruction Manual 1 (EN) · OMRON RS4 (HEM-6181-E) Automatic Wrist Blood Pressure Monitor Instruction Manual 1 (EN)
Symptoms and causes
Probable causes · in order
- Batteries with little charge leftCommon
According to the manuals, the battery symbol flashes when batteries are low, and the table recommends replacing them all even though the monitor still runs.
Evidence: OMRON M3 Comfort AFib (HEM-7196-FLE) Automatic Upper Arm Blood Pressure Monitor Instruction Manual 1 (EN) · OMRON RS4 (HEM-6181-E) Automatic Wrist Blood Pressure Monitor Instruction Manual 1 (EN)
- Batteries depleted during the measurementPossible
If the symbol stays lit or the monitor turns off by itself while measuring, the table puts it down to depleted batteries and says to replace them immediately.
Evidence: OMRON M3 Comfort AFib (HEM-7196-FLE) Automatic Upper Arm Blood Pressure Monitor Instruction Manual 1 (EN) · OMRON M6 Comfort AFib (HEM-7380-E) Automatic Upper Arm Blood Pressure Monitor Instruction Manual 1 (EN) · OMRON RS4 (HEM-6181-E) Automatic Wrist Blood Pressure Monitor Instruction Manual 1 (EN)
- Blank display from batteries aligned wronglyPossible
If nothing shows on the display, the table gives two causes, completely depleted batteries or misaligned polarities, and tells you to check how they are fitted.
Evidence: OMRON M3 Comfort AFib (HEM-7196-FLE) Automatic Upper Arm Blood Pressure Monitor Instruction Manual 1 (EN) · OMRON RS4 (HEM-6181-E) Automatic Wrist Blood Pressure Monitor Instruction Manual 1 (EN)
Virtual technician
Does Battery symbol low 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
OMRON Healthcare · 2023 · official_doc
- 2
OMRON Healthcare · 2023 · official_doc
- 3
OMRON Healthcare · 2024 · official_doc
- 4
OMRON Healthcare · 2024 · official_doc
- 5
OMRON Healthcare · 2023 · official_doc
- 6
OMRON Healthcare · 2023 · official_doc
- 7
OMRON RS4 (HEM-6181-E) Automatic Wrist Blood Pressure Monitor Instruction Manual 1 (EN)
OMRON Healthcare · 2022 · official_doc
- 8
OMRON Healthcare · 2022 · official_doc
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