WATER HEATER DEVICE

To provide a water heater device that can support short circuit of a twin core communication wire without using a poly-switch by a simple configuration.SOLUTION: A water heater device includes: a water heater; a remote controller 200 connected to the water heater via a twin core communication wire 300 capable of being fed from the water heater and communicating with the water heater; and a microcomputer 121 disposed on a control board on a side of the water heater. The microcomputer 121 detects short circuit of the twin core communication wire 300 based on that a voltage value of a voltage Vd of the twin core communication wire 300 is equal to or lower than a threshold voltage that is lower than a normal voltage value.SELECTED DRAWING: Figure 4 【課題】ポリスイッチを用いることなく、簡素な構成で、二心通信線の短絡に対応可能な給湯装置を提供する。【解決手段】給湯装置は、給湯器と、給湯器からの電力供給および給湯器との通信が可能な二心通信線３００で給湯器に接続されたリモコン２００と、給湯器側の制御基板に配置されたマイコン１２１と、を備える。マイコン１２１は、二心通信線３００の電圧Ｖｄの電圧値が、正常な電圧値よりも低い閾値電圧値以下であることに基づいて、二心通信線３００の短絡を検出する。【選択図】図４