Slant/Fin VSL-160C Part C - Manual (Page 10)

82
13 - USE
E14
13.18.2 - Diagnostics: “E” blocking errors (continued)
“E”
Code Blocking
description
Checks to make Solutions
U8 return temperature
sensor short-circuited
E15
E16
E17
E18
E19
E20
E21
E22
E23
E30
E31
E32
E33
E42
E50
E51
U4 outside sensor short-
circuited
Erroneous temperature
reading.
U3 cold water temperature
or indirect water heater
temperature sensor circuit
shorted
U6 boiler temperature
sensor circuit shorted
E2prom memory damaged
Flame presence with gas
valve closed
Phase and neutral inverted
Electrical supply frequency
other than 60Hz
Ground connection is
absent
Erroneous temperature
reading.
Erroneous temperature
reading.
Erroneous temperature
reading.
Erroneous temperature
reading.
Program error
Error in the boiler tY
parameter selection
Reset button pressed too
often in a short period time
Check that the electrical resistance of
the sensor corresponds with the graph in
section 14.13;
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 14.14;
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 14.13;
check that the electrical connection cables
between the sensor and the power control
board have continuity and carry current
Invert phase and neutral
Check the electrical frequency of the
system.
Check if CS parameter is at 03 (see
section 17)
Check that the electrical resistance of
the sensor corresponds with the graph in
section 14.13;
check that the electrical connection cables
between the sensor and the power control
board have continuity and carry current
Check if the boiler is properly grounded
Move ON switches 7 an set again the
correct tY value (see section 17)
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
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 command and control board
Replace the gas valve
If phase and neutral are correctly wired, replace the power and
control board
If the electrical supply frequency is other than 60Hz, contact
the electric company;
if the mains frequency is 60Hz, replace the command and
control board.
Make sure that the CS parameter is at 03.
if the boiler is properly grounded, replace the power control
board
Replace the power control board
Replace the power control board
Replace the power control board
Replace the power control board
Replace the power control board
If tY value is correct, change the power control board
E52
E53
Heating fl ow switch
closed
Heating fl ow switch
open
Check if the heating pump is running.
Check if the fl ow switch contact is stuck
Check if the heating pump is running.
Check if the fl ow switch contact is
broken
The pump should not run and the contanct should open
The contact must be open
The pump should run and the contact should closed
The contact must be closed