AXW smart - Biral
AXW smart - Biral
AXW smart - Biral
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58<br />
english<br />
9. Summary of malfunctions<br />
All poles of the supply voltage must be switched off<br />
and secured against reconnection without fail<br />
before removing the terminal box cover and before<br />
dismantling the pump at any time.<br />
Fault Cause Remedy<br />
Pump does not run No motor voltage Check switch and fuses,<br />
(no LED indication)<br />
check supply voltage<br />
Motor defective<br />
Change pump<br />
Short-circuit<br />
when pump switched on Mains wrongly connected Connect correctly<br />
Motor defective<br />
Change pump<br />
E1 lit red Sensor error forward flow (Pump changes<br />
Connection to forward<br />
to continuous operation.)<br />
flow sensor interrupted<br />
Check fitting of temperature<br />
sensor and connection<br />
of blue plug (4.6)<br />
E2 lit red Overheating (Pump switched off.<br />
The temperature<br />
It switches on again<br />
at the return flow sensor automatically after cooling.)<br />
above 85°C<br />
=> check system<br />
E3 lit red No heating of forward flow (Pump switched off)<br />
takes place with pump running: Acknowledge error message:<br />
dry running, boiler cold<br />
press control button,<br />
or non-return valve blocked possibly vent pump (6.2)<br />
E4 lit red Defective non-return valve (Pump runs in normal operation.)<br />
Error message can be reset<br />
by pressing control button.<br />
Check/replace non-return valve.<br />
Subject to technical modifications