89
Malfunctions, possible causes and solutions
BOILER STATUS
MALFUNCTION
PROBABLE CAUSE
USER'S TASKS
QUALIFIED PERSONNEL'S
TASKS
E87*
Return temperature increases
too quickly.
Circulation of foreign water in
boiler.
Contact qualified personnel
Check that there are no other
boilers or additional cascading
heat sources.
Air present inside heating
system.
Contact qualified personnel
Bleed the air from the boiler
by opening the jollies on the
exchanger and pump.
E89***
Faulty flue temperature value.
Flue probe on heat exchanger
is faulty or damaged.
Contact qualified personnel
Replace it.
E98
The max. number of resets
from the boiler touch screen
has been reached.
The user has reached the max.
number of resettable errors
from boiler control panel.
Contact qualified personnel
Power off and then on using
the switch installed ahead of
the boiler.
E99
The max. number of resets
from the Remote Control has
been reached.
The user has reached the max.
number of resettable values
from the Remote Control.
Contact qualified personnel
Reset boiler interface.
* errors that can be reset by the user by keeping the RESET button pressed
** self-resettable errors, they automatically reset as soon as the failure is fixed
*** errors that can be reset only by the Technical Service personnel
In case errors E51, E52, E53, E73, E85, E89, E90 and E91 might occur, contact a Qualified Service Centre.
Содержание KBS 24 - 32
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