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We reserve the right to modify technical specifications without prior notice.
83053600bUK – Translation of the operating manual
© Alpha-InnoTec GmbH
Maintenance of the unit
The components of the heating circuit and the heat
source (valves, expansion vessels, circulating pumps,
filters, dirt traps) should be inspected and cleaned as
necessary - however, at least once a year - by qualified
personnel (heating or cooling system fitters).
It is best to arrange a maintenance agreement with a
heating installation company. The company will arrange
the necessary regular maintenance work.
Malfunctions
In the event of a fault, you can read out the cause of the
fault from the diagnostic program of the heating and heat
pump regulator.
operating manual for the heating and heat pump
regulator.
Further error numbers:
description
Remedy
761
LIN timeout
Check cable/contact
762
Tü sensor error
(evaporator
intake)
check sensor, replace if neces-
sary
763
Tü1 sensor error
(compressor
intake)
Check sensor, replace if
necessary
764
Sensor error
Compressor
heater
Check sensor, replace if
necessary
765
Overheating
longer than 5
minutes below 2K
When switching on for the
first time, check rotary field,
otherwise phone customer
service
766
Operation for 5
minutes outside
the compressor‘s
functional range
Check rotary field
attentIon
only customer service personnel authorised by
the manufacturer may carry out service and re-
pair work on the components of the unit.
Note that no malfunction is displayed if the safety
temperature limiter on the electric heating element has
tripped.
“commissioning”, “Safety temperature limiter”
section.
761
LIN timeout
Check cable/contact
762
Tü sensor error
(evaporator intake)
Check sensor, replace if
necessary
763
Tü1 sensor error (compressor intake)
Check sensor, replace if necessary
764
Sensor error Compressor heater
Check
sensor, replace if necessary
765
Overheating longer than 5 minutes below 2K
When switching on for the first time, check rotary
field, otherwise phone customer service
766
Operation for 5 minutes outside the
compressor‘s functional range
Check rotary field
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