Waking up. Everything cold. Checking heat pump.
System says "everything bad". Checking error code. Checking outdoor unit. Marderschaden! (=Damaged by a weasel!) That's new.

Reparing. Yay! Working again.
Saved roughly 300-500 euro in costs (and a weekend with only cold water!), and the wife is complaining that I cut her 2 Euro USB-cable for that. Argl.
This winter will be more dangerous than all of the previous ones you've ever experienced.
You believe a weasel damaged your property, but you're wrong.
It was damaged by a person who is jealous of you.
He saw all of the resources you've accumulated for the next cold season, and he felt ashamed of his own meager accomplishments.
"If I must freeze, EVERYONE should freeze."
Jealously is everlasting. Consider the possibility that a permanent harrasser has entered your life.
This winter will be very harsh for you.
Your ruination is gauranteed in the Post-Collapse.