Troubleshooting
Error message Situation | Solution |
No probe cover is attached and activation button was pressed while probe was in the ear.
Make sure probe window is clean; refer to section «Care and cleaning» if necessary.
Attach new, clean probe cover to stop error beeps.
Ambient temperature is not | Allow the thermometer to remain in a |
within the allowed operating | room for 30 minutes where |
range of 10°C - 40°C | the temperature is between |
(50°F to 104°F) or changing | 10°C and 40°C (50°F to 104°F). |
too rapidly. |
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Temperature taken is not within displayed temperature range (20°C - 42.2°C/ 68°F - 108°F).
HI = too high
LO = too low
Make sure new, clean probe cover is attached and thermometer is properly inserted.
To clear the error message, attach a new, clean probe cover or press the
/mem button.
Then, take a new temperature.
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| Battery is low, but | Insert new batteries |
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| thermometer will still operate |
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| correctly. |
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| (No light function) |
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| Battery is too low to take | Insert new batteries |
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| correct temperature readings. |
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System error
•If error persists
•If error still persists
Wait 30 seconds until thermometer powers down, then turn on again.
…reset the thermometer by removing the batteries and putting them back in.
…call Welch Allyn Customer Service (see page 2).
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