Instruction manual

55
12 - USE
12.12.2 - Diagnostics: “E” blocking errors
“E”
Code
Blocking
description
Checks to make
Solutions
E01
E02
E04
E07
E08
E11
E12
E13
U1 boiler temperature
sensor circuit interrupted.
U2 domestic hot water
temperature sensor
circuit interrupted.
U8 return temperature
sensor circuit interrupted
U3 cold water
temperature or storage
tank sensor circuit
interrupted
U6 boiler temperature
sensor circuit interrupted.
U1boiler temperature
sensor circuit short-
circuited.
U2 domestic hot water
temperature sensor
circuit short-circuited
Erroneous temperature
reading.
Check that the electrical resistance of
the sensor corresponds with the graph
in section 13.14;
check that the electrical connection
cables between the sensor and the
power control board
Check that the electrical resistance of
the sensor corresponds with the graph
in section 13.14;
check that the electrical connection
cables between the sensor and the
power control board
Check that the electrical resistance of
the sensor corresponds with the graph
in section 13.14;
check that the electrical connection
cables between the sensor and the
power control board
Check that the electrical resistance of
the sensor corresponds with the graph
in section 13.14;
check that the electrical connection
cables between the sensor and the
power control board
Check that the electrical resistance of
the sensor corresponds with the graph
in section 13.14;
check that the electrical connection
cables between the sensor and the
power control board
Check that the electrical resistance of
the sensor corresponds with the graph
in section 13.14;
check that the electrical connection
cables between the sensor and the
power control board
Check that the electrical resistance of
the sensor corresponds with the graph
in section 13.14;
check that the electrical connection
cables between the sensor and the
power control board
If the sensor resistance does not correspond, it must be
replaced;
if the electrical circuit is damaged, it must be repaired;
if the previous two cases do not apply, replace the power
control board
If the sensor resistance does not correspond, it must be
replaced;
if the electrical circuit is damaged, it must be repaired;
if the previous two cases do not apply, replace the power
control board
If the sensor resistance does not correspond, it must be
replaced;
if the electrical circuit is damaged, it must be repaired;
if the previous two cases do not apply, replace the power
control board
If the sensor resistance does not correspond, it must be
replaced;
if the electrical circuit is damaged, it must be repaired;
if the previous two cases do not apply, replace the power
control board
If the sensor resistance does not correspond, it must be
replaced;
if the electrical circuit is damaged, it must be repaired;
if the previous two cases do not apply, replace the power
control board
If the sensor resistance does not correspond, it must be
replaced;
if the electrical circuit is damaged, it must be repaired;
if the previous two cases do not apply, replace the power
control board
If the sensor resistance does not correspond, it must be
replaced;
if the electrical circuit is damaged, it must be repaired;
if the previous two cases do not apply, replace the power
control board
Replace the power control board