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LEDs Not Working
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The Argos had 3 LED indicators. Starting from the top going down
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LED Behavior
| Pattern | Description | Indication |
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All LEDs flashing | Firmware update in progress OR Sleep/Idle |
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Low Boiler LED flashing | Water level sensor not reading |
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Low Boiler LED Solid | Water level low - please refill boiler |
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Temperature Ready LED Flashing | Boiler temperature sensor not reading |
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Temperature Ready LED Slow breathing | Machine is heating up or cooling down to target brew temperature |
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Temperature LED Solid | Machine has reached Target Brew Temperature |
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Temperature LED Slow breathing Steam LED Solid |
Machine is heating up or cooling down to target steam temperature |
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Temperature LED Solid Steam LED Solid | Machine has reached Target Steam Temperature |
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Steam LED Flashing | Grouphead temperature sensor not reading |
LED Troubleshooting Steps
Your LEDs should all flash when you do either of the following actions
- Upon turning on the machine
- When running the Argos LED test
- Connect Argos to Odyssey Espresso App
- choose Settings -> Manage Argos -> Test LEDs ON
If all LEDs flash, then unexpected LED behavior is likely due to a software fault or issues related to separate hardware - see table above for what your LED behavior might mean
⚠️ If one or more LEDs fail to light up during the test above, then remove the back and left side panel (facing the machine) and check the following
Are the wires kinked?
TRY: Straightening out wires and re-do LED test
Are the LED pins going into the 18 pin-connector snug?
TRY: Re-sit pins in 18-pin connector and re-do LED test
Does gently wiggling the relevant wires make a difference?
TRY: Ensure pins in 18-pin connector are not failing to lock into place
- If pins are not locking in - follow this guide on how to adjust pin locking tabs
Are there signs of moisture that might be impacting the circuitry?
TRY: Please add Leak Troubleshooting to your to-do list to ensure moisture does not impact other parts of your machine
Do the LEDs work with the back panel removed?
TRY:
- Adjusting the wires coming out of the 18-pin connector to minimise pressure from back panel
- Adjusting the back panel, ensuring it is not bent too far inwards and exerting excess pressure on the wires exiting the connector
NOTES:
- You only need to remove the left panel (looking from the front of the machine) and the back panel to access the relevant wires. If your steam wand is on the left, note that there may be some residual water in the system upon disassembly.
- If your LED only fails at high temperatures (e.g., steam temperatures), first check that the LED wire isn't pinched against the boiler insulation and overheating. Since the PCB mount is flexible, you can gently bend it back to create more space for the wires, preventing them from pressing against the hot boiler insulation.
If your LED has blown and there does not appear to be other issues contributing to your LED failure, please email us at support@odysseyespresso.com detailing your findings and we will ship you new replacement parts
LED replacement
NOTES:
- You only need to remove the left panel (looking from the front of the machine) and the back panel to access the relevant wires. If your steam wand is on the left, note that there may be some residual water in the system upon disassembly.
- We will supply a pin removal tool with the LED parts to make it easier for you to remove the old terminals from the 18-pin connector.
- You do not need to cut the wires like Ross does in the video.
- You only need to replace the faulty LED(s). No need to touch the potentiometer or other LEDs.
- If you have the new LEDs with the white lens caps, you will receive just the bulb and wires of the LED, and the old LED can be replaced without removing the top lens and housing.
💡 Some users find it tricky to reinstall the back panel while holding the bolt in place.
Here's a helpful tip: use some tape and a 3mm allen key to hold the bolt in position (as shown in the photo below). This frees up your hands during reassembly. You'll understand what I mean when you reach this step.
Using the App
While you wait for your LED replacement, to get an idea on the machine's
- target boiler temperature
- how far off current boiler temperature is to target
- whether it is over- or under-heated
look at the circled area below on the main screen
The number in the circle and the outer GREEN line both show the current boiler temperature
The inner RED line shows the target boiler temperature
In the event that your machine's LEDs are not functioning, this data will be able to tell you when the machine has reached desired temperature.
You are ready to brew your espresso, or steam your milk, when the RED and GREEN lines match.
If you have any questions, comments, concerns about your Argos after this guide, please email us at support@odysseyespresso.com!