Bosch tankless not sensing water input/demand (no power bars on display)
I suspect our 2 year old daughter pressed the buttons on the bosch gwh 715 es at a house we are staying at and suddenly the hot water stopped being delivered. I've read the manual and it seems like it is not sensing any input. I've turned on sinks, showers and clothes washers on hot and there are no power bars on the display. If I shut off the water intake valve of the unit, the sinks and such turn off or have a slight trickle. Opening the valve again does nothing. I've reconfirmed that the min and max fan speeds are reasonable (7 min/46 max). But I can't tell why it's not sensing any water. From what I gather the power bars should register that there is a demand and the pilot should light. All I get is zero power bars no matter what. Any ideas? Of course it's a Sunday and we are kinda desperate. Thanks in advance!