Alarm Rtc Fail - LG THERMA V AHNW16606B0 Service Manual

Displaying the error
Description of error
Response of internal unit
controller
Possible causes
Troubleshooting
Displaying the error
Description of error
Response of internal unit
controller
Possible causes
Troubleshooting
Displaying the error
Description of error
Response of internal unit con-
troller
Possible causes
Troubleshooting
No flow
-
Disturbances in water flow.
The error is displayed in the diagnostics display:
• If it appears less than 3x in a row when the compressor is switched on, the device con-
tinues to function normally.
• Otherwise, "ERROR **NO WATER**" is displayed.
Sensor error
The device automatically restarts after the error is resolved
• The temperature sensor is not appropriately connected to the controller.
• The temperature sensor is damaged
Check the connection of the temperature sensor PT1000:
• In case of faulty connection of the temperature sensor PT1000, it must be connected
accurately.
Check the operation of the temperature sensor PT1000:
• Check the operation of the temperature sensor PT1000 (resistance 1000 Ohm at 0°C -
see the resistance table for sensors PT1000); if a malfunction of the temperature sen-
sor is detected, it must be replaced.
An error is detected on the PLC frequency oscillator, it affects the normal operation of
the meters.
The device will not restart until the error is resolved.
/
The reset of the error by pressing and holding ENTER does not help:
• Replace the PLC module.
- 38 -
Caution flow: xx s
ERROR .Sensors

ALARM RTC FAIL