Error Codes
Errors are encoded by a 4-digit code
Er: 0001
INT
Meter status
Temperature sensor T2 status
Temperature sensor T1 status
Flow sensor status
Code Name
Description
Status of calculator
Er: 0001
INT
0 - normal operation
1 - battery service life has expired (or in the meter was not powered
when meter is powering externally)
2 - temperature differential is higher than permissible limits
4 - temperature differential is lower than permissible limits
8 - electronic unit hardware failure *
Status of the return heat carrier temperature
sensor (T2)
Er: 0001
INT
0 - normal operation
4 - the sensor is short-circuited *
8 - the sensor is disconnected or short-circuited *
Status of the supply heat carrier temperature
sensor (T1)
Er: 0001
INT
0 - normal operation
4 - the sensor is short-circuited *
8 - the sensor is disconnected or short-circuited *
Status of the flow sensor
Er: 0001
INT
0 - normal operation
1 – no signal; the flow sensor is not filled with water
2 – reverse flow
4 – the flow is greater than 1 2∙q
s
(indicated q=1 2∙q
s
)
8 – hardware failure *
Table 1: Error codes
* The summation of energy and normal working time will be stopped only in case of these serious errors; the error code will
be displayed on the LCD first page; additionally the error date will be displayed
Error codes sum up if there is more than one error Then the summary indicated error code will be as follows:
3 – corresponds to error codes 2 + 1
5 – corresponds to error codes 4 + 1
7 – corresponds to error codes 4 + 2 + 1
9 – corresponds to error codes 8 + 1
A – corresponds to error codes 8 + 2
Operating Procedure
Page 27
November 2020
HYB-UM-03193-EN-02
