Wolf BWL-1S-07 - Fault Codes

110 3064298_201805
Troubleshooting
39.5 Faultcodes
Fault
code
Short designation Possible cause Remedy
12 Boiler sensor faulty Flow temperature (T_boiler) outside
permissible range (0 … 95 °C)
Check flow temperature (T_boiler)
Lead to sensor is faulty Check lead and plug-in connection
Sensor faulty Check/replace sensor
14 DHW sensor faulty DHW cylinder temperature outside
permissible range (0 … 95 °C)
Check DHW cylinder temperature
Lead to sensor is faulty Check lead and plug-in connection
Sensor is not correctly positioned at
measuring point
Check position of sensor and if necessary
insert sensor correctly
Sensor faulty Check/replace sensor
15 Outside sensor
faulty
Outside temperature outside permissible
range (-39 … 50 °C)
Lead to sensor is faulty Check lead and plug-in connection
Sensor faulty Check/replace sensor
16 T_return Return temperature outside permissible range
(0 … 95 °C)
Check return temperature
Lead to sensor is faulty Check lead and plug-in connection
Sensor faulty Check/replace sensor
35 BCC missing Appliance type connector missing Insert suitable appliance type connector
37 BCC incompatible Wrong appliance type connector Insert suitable appliance type connector
52 Max.cylinder
heating time
The maximum cylinder heat time is longer
than permitted
Cylinder sensor (SF): check position and
insert correctly if necessary
Check parameter WP022 and adjust if
necessary
Descale the cylinder
78 Header sensor
faulty
Header temperature outside permissible
range (0 … 95 °C)
Lead to sensor is faulty Check lead and plug-in connection
Sensor is not correctly positioned at
measuring point
Check position of sensor and if necessary
insert sensor correctly
Sensor faulty Check/replace sensor
101 Electric heater Electric heater not connected Check lead and plug-in connection
Acknowledge fault if WP090 = OFF
High limit safety cut-out of the electric heater
has tripped:
Before commissioning the heat pump Perform reset of high limit safety cut-out on
electric heater
Scale build-up in electric heater Have the notes in the installation instructions
regarding hot water treatment been
observed? Perform reset of high limit safety
cut-out on electric heater; after max. 3 resets,
replace electric heater.
Air in the electric heater Dry fire; replace the electric immersion heater
104 Fan Fan communication interrupted (ODU) Contact service engineer
107 HC pressure Pressure in heating circuit outside permissible
range (0.5 ... 3.0 bar)
Check pressure in heating circuit
Lead to pressure sensor faulty Check lead and plug-in connection
Pressure sensor faulty Replace pressure sensor
109 High pressure High pressure fault (ODU)
(cooling circuit/hot gas side)
Contact service engineer