186
Message Meaning
S.130 Instantaneous heating water heater switched off
S.131 Instantaneous heating water heater: Stage 1 active
S.132 Instantaneous heating water heater: Stage 2 active
S.133 Instantaneous heating water heater: Stage 3 active
S.134 4/3-way valve idle
S.135 4/3-way valve defrosting
S.136 4/3-way valve room heating/room cooling
S.137 Heating mode in startup phase
S.138 Heating mode active
S.139 Heating mode inactive
S.140 DHW heat demand issued
S.141 DHW heating active
S.142 DHW heating inactive
S.143 Cooling mode demand issued
S.144 Cooling mode enabled
S.145 Cooling mode inactive
S.146 Defrost demand issued
S.147 Heat provision for defrosting active
S.148 Defrosting via heat pump active
S.149 Defrosting via heat pump inactive
S.150 Preparing for defrosting via heating/cooling circuit 1 or external heating water buffer cylinder (if instal-
led)
S.151 Defrosting via heating/cooling circuit 1 or external heating water buffer cylinder (if installed) active
S.152 Defrosting via heating/cooling circuit 1 or external heating water buffer cylinder (if installed) inactive
S.153 Control in standby
S.161 Filling in progress
S.162 Venting in progress
S.163 Heat pump: System status inactive
S.164 Heat pump: System status maintenance standby
S.165 Heat pump: System status control
S.167 Actuator test active
S.176 Heat pump control unit: Defrost demand issued
S.181 Passive frost protection for heating/cooling circuit 1 switched on
S.182 Passive frost protection for heating/cooling circuit 2 switched on
S.183 Passive frost protection for heating/cooling circuit 3 switched on
S.184 Passive frost protection for heating/cooling circuit 4 switched on
S.185 Passive frost protection for instantaneous heating water heater switched on
S.186 Passive frost protection for DHW cylinder switched on
S.187 Passive frost protection for heat pump switched on
S.188 Passive frost protection for external heating/cooling water buffer cylinder switched on
S.189 Passive frost protection for external heating water buffer cylinder switched on
S.190 Passive frost protection for external cooling water buffer cylinder switched on
S.193 Demand to external heat generator via floating switching contact
S.195 Smart grid: Power-OFF active
S.196 Power-OFF enabled
S.197 Heat demand, heating/cooling circuit 1
Messages
Status messages (cont.)
6218234
Diagnosis
To Next Page