TROUBLESHOOTINGTITLE
| Display | Meaning | Action | |||||
Nothing is displayed | Dead battery. | Replace battery. | ||||||
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even after unit | Polarities of battery | Replace the battery | ||||||
is turned on. | ||||||||
are (+ and | with correct polarities. | |||||||
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| The lens cover may | Replace the lens cover | |
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| be dirty. | with a new one. | |
“°F” or “°C”flashes, |
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Lens may be dirty. | Clean the lens with | |||||||
but “0” symbol | ||||||||
a cotton swab. | ||||||||
is NOT displayed |
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| Ear drum may | Remove earwax. | |
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| be blocked with earwax. | ||
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| The unit is working | Place unit in ear, wait | |
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| under high room | 2 seconds. Press button | |
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| temperature, where | and wait for 4 beeps. | |
A "0 0" symbol | a special operation | Remove from ear, | ||||||
is displayed. | is needed. | look at results. | ||||||
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After all the symbols | Low battery. | Replace battery. | ||
on display illuminate, |
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a " | " mark |
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is displayed. |
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The display light is not | Low battery. | Replace battery. | ||
turned on. | ||||
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