@ trngia
If you are able to, please give us a bell today. Definitely annoying not having things working especially as it all seems like it should be? But yeah, please call us
I came a cross a similar issue once. The unit was working fine and then had the same 'clicking but not igniting' issue. Batteries were changed and the same thing was happening. From here it turned out the batteries were new from a store, but expired. Not always the case, but you'd be interested to know how many times this has happened. Some stores don't cycle the batteries and they just sit there.
Or, it could just be the unit has another fault? Something that we might need to diagnose over the phone
Aside from this, db has a point, could be low flow of water. If you have not enough flow you might get the click, but it could be on the verge of opening the micro switch completely. Maybe a clogged filter, clogged water inlet (small mesh screen on inside of the water fitting) could be blocking some flow.
There's a few different things our support goes through, so, please call in. Very keen to get this sorted as the last thing you need is for this not to work while the flooding is taking place. Hope you and the family are all safe BTW!