Solutions For Malfunctions And Errors - Warmhaus AQUWA 12 User Manual

2.4. SOLUTIONS FOR MALFUNCTIONS AND ERRORS

Malfunction/ Malfunction/Error Code
Error Code Description
Hot Domestic Water
E 04
temperature sensor error
Hot Domestic Water
E 05
temperature (Safety)
sensor error
E 06
No ignition
Security/Safety
E 07
Thermostat intervention
Flame circuit
E 08
malfunction
E 09 No water circulation in
the system
Gas valve modulator not
E 11
connected
Fan malfunction
E 15
(feedback/ supply)
Temperature difference
between FLOW and
E 17
LIMIT NTC (Dual Heating
sensor) faulty
Heater Over-
temperature
Malfunction, Heater
E 20
Heating Temperature
exceeded TSP 81 °C set
value
E 37 At low voltage
10
Water Heater Status Possible Causes
Device is not functioning
and E04 malfunction Hot Domestic Water
code is flashing on the temperature sensor error
screen
Device is not functioning
Hot Domestic Water
and E05 malfunction
temperature (Safety)
code is flashing on the
sensor error
screen
Device is not functioning
and E06 malfunction
Gas supply failure
code is flashing on the
screen
Device is not functioning
Low water flow rate
and E07 malfunction code
Clogged installation
is flashing on the screen
Wear or rust on the
Incorrect flame signal electrode
from electrode or Electrode position
combustion Broken wiring
Electronic card
Device is not functioning
Lack of water in the
and E09 malfunction
system
code is flashing on the
Clogged installation
screen
Device is not functioning
and E11 malfunction code Gas line malfunction
is flashing on the screen
device is not functioning
and E15 malfunction code Fan cable
is flashing on the screen
Device is not functioning
FLOW and LIMIT SENSOR
and E17 malfunction code
(dual NTC) faulty
is flashing on the screen
Device is not functioning
Lack of water in the
and E20 malfunction
system
code is flashing on the
Clogged installation
screen
Low voltage < 165 VAC
Device is not functioning +/- 5% in mains operation
and E37 malfunction code mode OR <182 VAC
is flashing on the screen +/- 5% in automatic
calibration mode
Solution
1-) Reset / restart the device and check if the malfunction
is resolved.
2-) If the malfunction persists, call the Authorized Service.
1-) Reset / restart the device.
2-) If the malfunction persists, call the Authorized Service.
1-) Reset / restart the device and check if the malfunction
is resolved.
2-) Check if other gas devices are working. 3-) Check if the main
gas valve is open.
4-) Check if the device gas valve under the device is open or not.
5-) Reset / restart the device and check if the malfunction
is resolved.
6-) If the malfunction persists, call the Authorized Service.
1-) Reset / restart the device and check if the problem is
solved.
2-) Check the water flow
2-) If the problem is not solved, call the authorized service.
1-) Reset / restart the device.
2-) If the malfunction persists, call the Authorized Service.
1-) Reset / restart the device.
2-) If the malfunction persists, call the Authorized Service.
1-) Reset / restart the device.
2-) If the malfunction persists, call the Authorized Service.
1-) Reset / restart the device.
2-) If the malfunction persists, call the Authorized Service.
1-) Reset / restart the device.
2-) If the malfunction persists, call the Authorized Service.
1-) Reset / restart the device.
2-) If the malfunction persists, call the Authorized Service.
1-) Reset / restart the device.
2-) If the malfunction persists, call the Authorized Service.
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