Water Heater Timer Stuck on Off

Bonjour tout le monde,

Two days ago, my husband turned off the water supply to replace a faucet in the kitchen. At the same time, it changed the switches on the water heater timer from auto to “arret total.” We have two water heaters: one for the ground floor and second for the 1st floor. 12-hours later, the ground floor water heater timer switch was able to be moved from “arret total” back to “auto.” However, the 2nd water heater timer switch is still stuck in “arret total.”

May I ask if anyone has any experience with this?

Merci :slight_smile: