Error Codes - NZR WZ FW 662 Kurzanleitung

Error messages
The WZ FW 662 indicates occurring errors by displaying on the LCD the Err-sign together
with a numbered code. If several errors occur at the same time, the numbers of the error
codes are summed up.
Err1
Err2
Err4
Err8
Err16
Err32
Err64
Err128
Err256
Err512
Err1024
Err2048
Err4096
Err8192
When an error lasts longer than an hour the error will be registered in the error memory
with its date and time (beginning) and duration (in minutes). When an error lasts less
than 60 minutes the error will be automatically deleted without being memorized.
The two temperature sensor indicators
the main menu when:
• temperature sensors are switched -> this installation error mode happens with most
installations during the summer time
• temperature in the cooler line is higher than the one in the warmer line.
These error messages are automatically deleted from the LCD display 60 seconds after
the error has been removed.
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22
The supply sensor is short circuited or disconnected
The return sensor is short circuited or disconnected
The temperature sensors are switched; the temperature sensor in the
cooler line is higher than the temperature sensor in the warmer line
Flow rate too high
EEPROM error in the integrator base
EEPROM error in the measurement and calibration part
Configuration error into the measurement and calibration part
Configuration error into the integrator base
Supply- and/or return sensor is/are short circuited or an internal default
Tension drop (by mains supply or bus supply)
Defective communication module connection place 1
Defective communication module connection place 2
Error pulse inputs additional meter A1
Error pulse inputs additional meter A2
Internal electronic failure, return to manufacturer
are displayed on the cumulated energy by