PB Heat Peerless Combi 160, User Manual

Page: 83 / 107

83
12 - USE
12.18.2 - 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 13.13;
check that the electrical connection cables
between the sensor and the power control
board have continuity and carry current
Check that the electrical resistance of
the sensor corresponds with the graph in
section 13.13;
check that the electrical connection cables
between the sensor and the power control
board have continuity and carry current
Check that the electrical resistance of
the sensor corresponds with the graph in
section 13.13;
check that the electrical connection cables
between the sensor and the power control
board have continuity and carry current
Check that the electrical resistance of
the sensor corresponds with the graph in
section 13.13;
check that te electrical connection cables
between the sensor and the power control
board have continuity and carry current
Check that the electrical resistance of
the sensor corresponds with the graph in
section 13.13;
check that the electrical connection cables
between the sensor and the power control
board have continuity and carry current
Check that the electrical resistance of
the sensor corresponds with the graph in
section 13.13;
check that the electrical connection cables
between the sensor and the power control
board have continuity and carry current
Check that the electrical resistance of
the sensor corresponds with the graph in
section 13.13;
check that the electrical connection cables
between the sensor and the power control
board have continuity and carry current
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