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Troubleshooting
Displayed malfunctions
Display as follows
Cause
Action
TARGET ACTUAL
Err
OFF
Water temperature at heating
chamber outlet above 147 °C
Operate appliance without
heating „Heating OFF“ until the
temperature has dropped below
147°C. Switch main switch „OFF“
and then back „ON“ again
AUS
E7
Appliance has not been
operated for more than 20
minutes -> Safety cut-off
Switch main switch „OFF“ and
then back „ON“ again.
Err
E2
Temperature sensor defective Replace temperature sensor
FLA
E8
Warning
Flame monitoring;
No combustion was detected
by the flame sensor after 2s
Check flame sensor;
Check combustion system
Switch main switch „OFF“ and
then back „ON“ again.
OIL
Actual
value
Fuel level inside tank too low
Refill fuel
(Heating oil EL)
UES
Actual
value
Motor overload protection,
high-pressure pump has
triggered
Check power supply,
remove extension cable,
nozzle clogged?
Switch main switch to „OFF“ and
back to „ON” again
Excess temperature release
As an additional safety device the appliance is equipped
with an excess temperature sensor inside the chimney. Should
the safety devices as e.g. the float monitoring device be defec-
tice and the burner continues to heat although the heating coil
does not conduct away heat a destruction of the heating coil
would be inevitable. As soon as the temperature inside the
chimney exceeds 260 °C the excess temperature release trig-
gers and cuts out the appliance.
The display of the excess temperature release is located on the
back of the switchbox inside the appliance.
RED
: Excess temperature released, let appliance cool down, no hot water operation possible
YELLOW
: Appliance cooled down, activation of hot water opertion possible by pressing
the
RESET
-button.
ATTENTION !!!
Immediately contact service in case of recurrence!
Heißwasserbetrieb erst
nach Abkühlung möglich.
Hot-water operation only possible
after cooling down phase.
Gerät abgekühlt, Heißwasserbetrieb
nach RESET wieder möglich.
Machine cooled down, hot-water
operation possible after RESET.
Überhitzung / Overheating
R
Содержание therm 1165 ST
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