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6
Troubleshooting
6.1
Understanding limp home mode messages
If an N.XXX limp home mode message is shown on
the display, a fault has occurred which the system can
compensate for through a short-term loss of comfort.
Example:
N.685 The communication to the system control has
been interrupted.
The product is then in comfort protection mode and contin-
ues to operate.
▶
Contact a competent person so that they can eliminate
the cause of this loss of comfort.
6.2
Reading fault messages
F.XXX fault messages have priority over all other displays
and are shown on the display instead of the basic display.
If several faults occur at the same time, these are displayed
alternately for two seconds each.
F.723 Building circuit: Pressure too low
If the filling pressure falls below the minimum pressure, the
heat pump will be switched off automatically.
▶
Inform your competent person so that he can top up the
heating water.
F.1100 Safety cut-out for electric back-up heater
triggered
The product has a safety cut-out that is permanently
switched off when the electric back-up heater is overheated.
If the electric back-up heater is defective or a safety cut-out
is open, the anti-legionella function and defrosting of the
outdoor unit are not guaranteed.
▶
Inform your competent person so that they can eliminate
the fault and reset the internal circuit breaker.
6.3
Detecting and eliminating faults
Danger!
Risk of death caused by improper repair
work
▶
If the power supply cable is damaged,
never replace this yourself.
▶
Contact the manufacturer, customer ser-
vice or a similarly qualified person.
▶
If problems occur whilst operating the product, you can
carry out certain checks with the aid of the table.
Troubleshooting (→ Page 197)
▶
If the product is not functioning correctly, even though
you have checked the points listed in the table, contact a
competent person.
8000017440_FT Operating instructions
7
Decommissioning
7.1
Temporarily decommissioning the product
1.
Switch off all of the disconnectors to which the product
is connected in the building.
2.
Protect the heating installation against frost.
7.2
Permanently decommissioning the product
▶
Have a competent person permanently decommission
the product.
8
Recycling and disposal
Disposing of the packaging
▶
The competent person who installed your product is re-
sponsible for the disposal of the packaging.
Validity: Except France
Disposing of the product
If the product is labelled with this mark:
▶
In this case, do not dispose of the product with the
household waste.
▶
Instead, hand in the product to a collection centre for
waste electrical or electronic equipment.
Disposing of batteries
If the product contains batteries that are labelled with
this mark:
▶
In this case, dispose of the batteries at a collection point
for batteries.
◁
Prerequisite: The batteries can be removed from
the product without causing any destruction. Other-
wise, the batteries are disposed of together with the
product.
▶
In accordance with the legal regulations, used batteries
must be returned since batteries may contain substances
that are harmful to health and the environment.
Validity: France
Disposing of the product
▶
Dispose of the product, its accessories and batteries
correctly.
▶
Observe all relevant regulations.
Deleting personal data
Personal data may be misused by unauthorised third parties.
If the product contains personal data:
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