Diagnostics: "E" Blocking Errors - PEERLESS Combi 160 Installation, Operation & Maintenance Manual

12 - USE

12.18.2 - Diagnostics: "E" blocking errors

Blocking
"E"
description
Code
U1 boiler temperature
sensor circuit interrupted.
E01
U2 domestic hot water
E02
temperature sensor circuit
interrupted.
E04
U8 return temperature
sensor circuit interrupted
U3 cold water
E07
temperature or storage
tank sensor circuit
interrupted
U6 boiler temperature
sensor circuit interrupted.
E08
U1boiler temperature
E11
sensor circuit short-
circuited.
U2 domestic hot water
E12
temperature sensor circuit
short-circuited
Erroneous temperature
E13
reading.
Checks to make
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
56
Solutions
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