What to do if Salus Controller displays Error 04 related to room temperature sensor?
- RrzimmermanAug 13, 2025
If the Salus Controller displays Error 04, it indicates an open circuit in the room temperature sensor. Here's what you should do: * If the sensor is set to Internal (Default), replace the thermostat or use an external sensor. * If the sensor is set to External (Settings), and Parameter 12 is set to the external sensor, check the wiring or ensure the sensor is connected. * If the sensor is set to External and Parameter 12 is set to Zigbee remote, follow the "Find & Bind" sequence defined in the IOM.