Winterwarm XR+ Series, Installation Manual

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9 Troubleshooting
If the air heater malfunctions, first check if the problem is
caused by external circumstances (e.g. no supply power).
If the problem is not caused by external circumstances,
use the tables and instructions in this chapter to fix the air
heater.
NOTICE Please remember the built in waiting times of
the air heater; the signals of the LED’s and the code on the
display. Do not react too soon.
9.1 Volatile lock outs
The table below describes the volatile lock outs that can
occur. These can only be reset by hand.
Display Error type Description Case #
L-0 Internal error Internal error 13
L-1 Ignition error Flame lasts only 5 seconds
after ignition 1
No flame after ignition 2
L-2 and 3 Internal error Internal error 13
L-4 E-error E-error for more than 24
hours 12
L-5 Burner fan error Burner fan does not work 6
L-6 and 7 Burner fan error Burner fan rotates at the
wrong speed 7
L-8 to 12 Internal error Internal error 13
L-13 Pressure switch error Pressure switch is closed
in stand-by mode
14
L-14 Pressure switch error Pressure switch does not
close during pre-purge
11
L-15 Overheating Heat exchange sensor is
overheated 3
L-16 Flue temperature
error Flue sensor is overheated 3
L-17 to 19 Internal error Internal error 13
L-20 Flame error Flame detected after
closing the gas valve 15
L-21 Flame error Flame detected before
opening the gas valve. 16
L-22 Flame error Flame failure during
burning 5
L-25 Sensor error Heat exchange sensor
failure 4
L-26 Sensor error Flue sensor failure 4
L-27 to 31 Internal error Internal error 13
L-32 Sensor error Heat exchange sensor
failure 4
L-33 to 38 Internal error Internal error 13
L-42 Flue temperature
error Too many flue temperature
errors 3
L-43 Overheating Heat exchange sensor is
overheated too often 3
9.2 Temporary errors
The table below describes the temporary errors that can
occur. These will disappear automatically after the cause
has been resolved.
Display Error type Description Case #
E-00 to 04 Internal error Internal error 13
E-05 Overheating Heat exchange sensor is
overheated 3
E-06 to 13 Internal error Internal error 13
E-14 Flame error Flame detected when there
shouldn’t be one 16
E-15 to 20 Internal error Internal error 13
E-21 and 22 Heat exchanger
sensor error Heat exchanger sensor not
detected 4
E-23 and 24 Flue sensor error Flue sensor not detected 4
E-27 and 28 Heat exchanger
sensor error Heat exchanger sensor
short-circuit 4
E-30 and 31 Flue sensor error Flue sensor short-circuit 4
E-34 Reset button
error Too many reset actions in a
short timespan 9
E-36 Overheating Heat exchange sensor is
overheated 3
E-38 and 39 Heat exchanger
sensor error Heat exchanger sensor not
detected 4
E-47 and 48 Heat exchanger
sensor error Heat exchange sensor
short-circuit 4
E-49 to 64 Internal error Internal error 13
E-65 Voltage too low Supply voltage is too low
for over 1 minute
E-66 Voltage too high Supply voltage is too high
for over 1 minute
E-67 Pressure switch
error Too many pressure switch
errors 11
E-68 Flue temperature
error Flue sensor is overheated 3
E-69 Configuration
error Heater configuration error 19