159
F016 Short circuit in
outdoor
temperature
sensor
• Short circuit in the sensor or
sensor cable
• Have the fault fixed by a
qualified electrician
F017 Outdoor
temperature
sensor open
circuit
• Open circuit in sensor cable
• Sensor incorrectly connected
• Sensor is faulty
• Have the fault fixed by a
qualified electrician
F018 Motor protection
triggered in the
delivery system
• Motor overheated
• Cable incorrectly connected
• Have the fault fixed by a
qualified electrician
F019 Motor protection
on stoker auger
triggered
• Motor overheated
• Cable incorrectly connected
• Have the fault fixed by a
qualified electrician
F020 Please empty ash
box
• The “empty ash box” period
has elapsed
• Check the ash box and empty
if necessary
• Modify cleaning interval if
necessary Par. 6-12
F021 Short circuit in
upper buffer
temperature
sensor
• Short circuit in the sensor or
sensor cable
• Have the fault fixed by a
qualified electrician
F022 Open circuit in
upper buffer
temperature
sensor
• Open circuit in sensor cable
• Sensor incorrectly connected
• Sensor is faulty
• Have the fault fixed by a
qualified electrician
F023 Short circuit in
lower buffer
temperature
sensor
• Short circuit in the sensor or
sensor cable
• Have the fault fixed by a
qualified electrician
F024 Open circuit in
lower buffer
temperature
sensor
• Open circuit in sensor cable
• Sensor incorrectly connected
• Sensor is faulty
• Have the fault fixed by a
qualified electrician
F025 Lambda sensor
in heating
faulty
• Open circuit in the lambda
sensor connection cable
• Lambda sensor is faulty
• Fuse F4 (on I/O circuit board)
faulty
• Have the fault fixed by a
qualified electrician
F026 Lambda sensor is
faulty
• Lambda sensor is heavily
soiled
• Lambda sensor is faulty
• Clean the lambda sensor
• Have the fault fixed by a
qualified electrician
No. Fault Cause Remedy
Table 8/1 - Faults (continuation)
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