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Screen reading is weak or fading.
Symptom of interference or a weak battery.
Replace the battery.
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Screen readings are erratic and read too high or too low.
Symptom of a weak battery.
Replace the battery.
●
Screen "frozen", no response to buttons.
Symptom of a weak battery.
Replace the battery.
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No display whatsoever.
Battery is completely dead, or not installed.
Replace or install the battery.
ENG
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