Anyone noticed with your pumps power draw of around 60W when completely idle ?
I’ve just noticed it and don’t have any explanation. What is consuming the power there ? These are 3 consequent days. Outside temp above 5C, during a day above 10C. Here I’ve noticed when the pump finished the heating because the indoor temperature was reached it idled fine for around 40 minutes consuming 11W which is just right for powering controller and circuits. BUT the, suddenly is starts consuming 60W I don’t know for what. The pump is idle completely and there is no reason for that. This lasts couple of hours until eventually drop for 11W idle consumption again. This is super weird as there is no reason for that intermediate draw lasting several hours. Are they mining come crypto or what ? No jokes…
Hi Michal.
That it’s constant, with definite “on” and “off” timing, suggests to me that it is a winterisation circuit (electrical resistance heating) being energised.
Either that, or it’s you pulling so much data out of the controller with your MIM-B19N that the poor thing is having to supply extra power to the F1-F4 terminals just to keep up with you…
Hi Sarah, sorry, forgot to thank you for these hints Nevertheless I need to revive this topic since it is still continuing even in case there is really hot out there so this won’t be energizing circuit for sure
You can see here that there was 20C outside and still this damned consumption out of nowhere… I estimate it’s maybe 20h a days if the pump is off consuming 1kW of energy for nothing. Yeah not a big deal it’s 360kWh/year but anyway
The pattern is that after the pump stops it is always idle (10W which I would expect) but only for a short time usually 5 - 45 mins then again is starts to consume 60W Circulation pump is off and it’s not 3-way valve neither since it’s not moving. This is really a mystery and driving me nuts, any other ideas ? That Modbus I hardly doubt because it’s polling all the time even on those idle periods with 10W consumption. Maybe it was like that before as well I don’t know, the only difference is modbus installed and DHW tank with 3-way valve.
Nevertheless I need to revive this topic since it is still continuing even in case there is really hot out there so this won’t be energizing circuit for sure 