Fault Clearance - Techem Ve Manual Del Usuario

Displays/operation
Info codes
Code Meaning
F-1 Temperature sensor faulty. Exchange the device and return it.
F-3 The return flow sensor registers a higher temperature than the flow sensor. Check whether
the heat meter / the sensors are in the correct sections.
F-4 Flow sensors faulty. Exchange the device and return it.
F-5 Heat meter measures faultlessly. In order to save electricity, the optical interface is tempora-
rily out of operation.
F-6 The flow direction of the volume measuring section is incorrect. Check the installation
direction.
C-1 The meter has a permanent fault and must be replaced. The readout values cannot be used.
All error displays except C1 are alternating displays which change every 2 seconds,
displaying the cumulated energy since commissioning. In contrast, error display C1 is
exclusive, i.e. if this error occurs no alternative display is possible.
If several of the errors indicated by the other displays occur simultaneously, the meter dis-
plays the higher priority display error. The display priority order is F4, F1, F6, F3, F9 and F5.
In addition to the error displays as such, a warning triangle is superimposed in all the
displays except the "Everything off" display test. Example:

Fault clearance

Before you look for a fault on the heat meter itself, please check the following items:
Is the heating on? – Is the circulation pump running?
Are the shut-off devices fully open?
Is the pipe free (possibly clean the strainer)?
Is the dimensioning okay?
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