Salus IT500 killing pump power after hot water cycle is complete

[dave654321]

Hi,

I have a Salus IT500 controlling my vaillant ecotec 418 open vented boiler.
The hot water is heated for 2 hours and when the time is up the Salus stops the water heating cycle and leaves the boiler to cool down. The boiler shows the pump symbol for the external pump running, but the salus has killed the pump power.
Is that expected behaviour or a wiring fault?

Best regards,
Dave

 

[kris]

Get your sparky to check it but surely once your cycle is finished then the power should be cut unless it requires a 2 minute pump overrun cycle which system boilers have but if your conventional is showing a pump it may require it . Spark will tell you .