Baxi Duo-tec - 15 Troubleshooting Service Faults

7733595 (01-05/19) 38
I N S TA L L E R S e c t i o n ( e n )
15. TROUBLESHOOTING SERVICE FAULTS
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If
appears on the display the fault must be RESET by the user.
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for 2 seconds. If faults are displayed frequently, call the Authorised Service Centre.
Description of fault Service action
10
External probe sensor faulty Check the sensor (*).
12
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13
+\GUDXOLFGLႇHUHQWLDOSUHVVXUHVZLWFKFRQWDFWVVWXFN See the actions indicated in E12
15
Gas valve control error
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electronic board. If necessary, replace the electronic board.
18
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19
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20
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Check the sensor (**).
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28
NTC fumes sensor faulty
Check the fumes NTC probe (***).
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40
NTC return sensor faulty See the actions indicated in E20
50
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53
Fumes outlet obstructed
Check that the drainage pipe is free from obstructions.
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seconds.
55
Electronic board not calibrated
Activate the automatic calibration function described in the
spare parts instructions sheet.
83…87
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board or RF link.
92
Fumes fault during calibration (probable fumes recirculation)
Check for any recirculation of fumes.
Activate the automatic calibration function described in
the paragraph YEARLY MAINTENANCE – REPLACING
COMPONENTS.
109
Air in boiler circuit (temporary fault)
Check pump operation.
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110
Safety thermostat tripped due to overtemperature (pump
probably blocked or air in heating circuit).
Check pump operation.
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Check that the limit thermostat is undamaged and replace it if
necessary
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117
Pressure in hydraulic circuit too high (> 2.7 bar)
Check that the pressure in the system is correct
See the FILLING THE SYSTEM section.
118
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the FILLING THE SYSTEM section).
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125
No circulation safety trip.
(control performed via a temperature sensor)
See the actions indicated in E109
128
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and correctly positioned (see the ANNUAL SERVICING -
POSITIONING THE ELECTRODES section).
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See the actions indicated in E92
129
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and correctly positioned (see the ANNUAL SERVICING -
POSITIONING THE ELECTRODES section).
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Check for any recirculation of fumes.
130
Fumes NTC tripped due to overtemperature
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Check the fumes NTC probe (***).
133
Ignition failure (5 attempts)
Check that the gas valve is open and there is no air in the gas
supply circuit.
Check the gas supply pressure.
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See the actions indicated in E92
Check correct operation of the condensate drainage.