17
TROUBLESHOOTING
1. Power on but no display
1) Make sure the time of pressing
key is more than 200mS.
2) Check the batteries are in good
contact with correct polarity.
3) Replace new batteries and try again.
2. Display disappeared
Check whether the low battery
indicator shows before display
disappears, if yes, replace with new
batteries.
3. Error code and solution
1)Air Temp.
E02: Temp. is under low range limit.
Put the meter in room temp for
30 minutes. If E02 still shows,
send to the dealer for repair.
E03: Temp. is over high range limit.
Put the meter in room temp for
30 minutes. If E03 still shows,
send to the dealer for repair.
E31: temperature measuring AD
damaged. Send to the dealer
for repair.
2) RH
E04: temperature error caused the
RH error. Check the temp.
error solution.
E11: RH calibration error.
Try recalibration or send for
repair if it still can’t work.
E33: RH measurement circuit error.
Send to the dealer for repair.
