13 CO220-en-US_V1.5 8/20
Troubleshooting
Meter won’t power
ON
Check to see that the adaptor is properly
plugged in.
Slow response
Check that the air flow channels on the
rear of the meter have clearance.
Error Codes:
E-1
CO
2
sensor is
damaged
Return for repair
E-2
Humidity sensor is
damaged
Return for repair
E-3
Temperature sensor
is damaged
Return for repair
E-4
Operating
temperature is too
high
Put the meter in typical room
temperature for 30 minutes,
if problem persists, return
for repair
E-5
Operating
temperature is too
low
Put the meter in typical room
temperature for 30 minutes,
if problem persists, return
for repair
E-6
Hardware failed
Return for repair
