191
Message Meaning
I.157 Required hot gas temperature for heating mode exceeded
I.158 Required hot gas temperature for cooling mode exceeded
I.159 Increased interior temperature in outdoor unit
I.163 Wallbox power restriction active: Output from photovoltaic system too low
I.168 Heat pump is configured as the lead heat pump.
I.169 Heat pump is configured as a lag heat pump.
I.170 Due to a fault, a lag heat pump temporarily takes over the task of the lead heat pump.
I.171 Inverter:
■
Software update running.
■
Inverter off
■
No action required
I.173 Inverter:
■
Output current too high
■
Reduced compressor speed
■
No action required
I.174 Inverter:
■
Power for compressor is temporarily reduced.
■
Reduced compressor speed
■
No action required
I.175 Compressor does not start:
■
Ambient temperature is lower than permissible operating temperature for compressor.
■
Compressor temporarily off
Measures:
1. Check temperature at the interior temperature sensor. If possible, increase the temperature.
2. Inform Viessmann Technical Service.
I.176 Compressor with reduced output:
Ambient temperature is higher than permissible operating temperature for compressor.
I.182 Compressor overloaded:
Normal operating behaviour
Messages
Information messages (cont.)
6218234
Diagnosis
To Next Page
Loading...
