Error Code; Error Code With Display - Honeywell TR50 User Manual

Temperature and humidity deviation is too
large, the value is too high or low.
Temperature and humidity deviation is too
large; value does not change for a long
time.
Communication interruption RS-485
(MODBUS RTU)
RS-485/Sylk
abnormal
LCD doesn't display any information
LCD display 9999
LCD display Err.
LED ring dark
LED ring blink
Touch button no any feedback
Noise or smell or fire from device
Device reboot automatic
No TVOC and PM sensor data

7.3 Error Code

7.3.1 Error Code With Display

In case of any sensor failure alarm for TR50-5D and TR50-3D, the display will
show the sensor name and Err, until the user change it manually. For example, in
case of PM2.5 sensor failure, the display will show the error code as Err
more than one sensor fails, the display will switch among those failure sensors.
The below figure indicates the Error Code for Color mode and Neutral Mode.
• Color Mode: Indicates Red LED ring with Error Code.
TR50 - User Guide
Fault Condition
TM
Bus communication
Troubleshooting
Check whether the environmental factors
surrounding the IAQ Sensor have any influence,
such as direct sunlight, close to the heating or air
conditioning air outlets, etc.
The sensor can be powered off and back on to see
if the reading returns to normal. Contact the dealer
or manufacturer if the sensor value cannot be
recovered.
Check if the power supply is normal and the RS-
485 terminal is loose. Check whether the RS-485
communication line is accidentally cut. Check for
an inductive load with electromagnetic
interference near the equipment or RS-485
communication line, such as a water pump.
Check the slide switch is in correct position, check
the DIP switch protocol is also correct.
Check the power supply is normal, check the device
SKU is LCD display modes.
Check the sensor value is more than 9999.
Check the sensor is working correct.
Check the power supply is normal
Check the sensor is working correct.
Check the touch area is clean and dry. Check the
finger is dry and no any ESD risk.
Check the power supply is normal.
Check the software revision is updated, check the
TM
Sylk Bus load is normal.
Check the device SKU only have Temperature
Humidity and CO .
2
PM2.5
. If
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