Heatline CaprizPlus 28 - Fault Codes

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Fault
codes
Description Cause Solution
F00 Flow heating temperature sensor fault Sensor open circuit
• Check the sensor’s connections.
• Check the wiring harness.
• Check the sensor.
F01 Return heating temperature sensor fault
Return heating temperature sensor
disconnected
F10 Flow heating temperature sensor fault Sensor short-circuit
F11 Return heating temperature sensor fault
Return heating temperature sensor
shorted.
F20 Overheating fault
Overheating safety device activated
(97°C)
• Check the operation of the pump.
• Check the wiring harness.
• Check that the  ow and return heating isolation
valves are open.
F22 Water pressure of the installation (<0.3 bar)
Return water valve closed
Pump disconnected
Leak in the installation
• Fill the installation.
• Purge the installation.
• Check the pump connections.
• Check the  ow and return heating sensor
connections.
• Check that there are no leaks.
F23
Maximum temperature difference reached
between return and  ow heating
Water circulation fault
• Check the  ow and return heating sensor
connection.
• Check the pump speed.
F24 Water circulation fault
Malfunction of the pump (excessively
rapid temperature increase)
• Check that the  ow and return heating isolation
valves are open.
F26 Fault in gas valve motor. Disconnected or defective cables
• Check the gas valve connections.
• Check the operation of the gas valve.
• Check the operation of the condensate pump (option).
F27 Flame detection fault. Abnormal  ame detection
• Check the  ame detection electrode.
• Check the main board.
• Check the igniter unit.
F28 Ignition fault
No return gas / Insuf cient gas  ow
Gas valve incorrectly adjusted
Defective  ring electrode and  ame
control / Defective igniter unit
• Check the return gas circuit (gas valve open).
• Check the observe the  ame picture and check
the CO
2
setting.
• Check the igniter unit connections.
• Check the state of the electrode (corrosion).
F29 Loss of  ame during operation
F32 Incorrect air pressure Incorrect fan speed.
• Check the entire  ue system.
• Check the fan’s electrical connections.
F49 EBUS voltage fault
Fault in EBUS line
Short circuit in EBUS connector
• Check that the eBus controls are  tted and wired
correctly.
F61
Fault in the main board
Gas valve command fault
• Check the main boards connections.
• Check the main board.
• Check the appliance DSN number is correct.
• Reset the appliance.
F62 Gas valve closure fault
F63 Fault in the main board memory
F64
Rapid  uctuation of return or  ow
heating sensor.
F65 Excessive main board temperature
F67 Flame signal fault in the main board
F68 Fluctuation of  ame signal
No return gas / Insuf cient gas  ow
Gas valve incorrectly adjusted
Defective  ring electrode and  ame
control / Defective igniter unit
• Check the return gas circuit (gas valve open).
• Check the observe the  ame picture and check
the CO
2
setting.
• Check the igniter unit connections.
• Check the state of the electrode (corrosion).
F70
User interface incompatible with the main
board
Incorrect product code
• Check that the appliance DSN code on the screen
matches the product code of the nameplate (in the
event of a fault and the appliance DSN does not
appear, consult menu.d.93 reserved for the code).
• Check the boards reference.
F71 Flow heating temperature sensor fault
Flow heating temperature sensor
unclipped or defective (no
temperature variation)
• Check the sensor connections.
• Make sure that the sensor is clipped to the tube.
F72
Permanent temperature difference between
 ow and return heating sensors
Mismatch between the  ow and return
heating temperatures (permanent
difference)
• Check temperature sensors connections.
• Replace faulty sensors.