56
13.1 Error Messages And Resetting The Boiler
Error Description
Operation
09
Gas valve connection fault
Check cable
PCB
/gas valve and gas valve plug
10
Outdoor sensor fault
Check sensor and cable
15
Gas valve command fault
Verify all cables. Replace
PCB
.
Call authorized SERVICE center
20
Central Heating NTC sensor fault
Check sensor and cable
28
Flue NTC heat exchanger sensor fault
Check sensor and cable
40
Return NTC sensor fault
Check sensor and cable
50
Domestic Hot Water NTC sensor fault
Check sensor and cable
53
Obstruction in flue pipe, Recirculation, Out of
Calibration, Poor gas quality
Check for obstruction in flue pipe. Check gas pressure, check
gas orifice. Check for recirculation, recalibrate, check gas
quality.
55
PCB not programmed
Call authorized SERVICE center
E72/E92
Combustion test alarm during commissioning /
calibration
Check flame sensor, check for obstruction in flue pipe, check
for recirculation, check gas pressure, check gas orifice, check
gas quality. Perform Calibration Function.
E83
OT Communication Failure
Check OT connection, remove power, reconnect OT
connections, if problem persists replace service key.
84-86-87
Communication problem between boiler board and
control unit
Probable short circuit on wiring.
Check cable between control unit and boiler
109
Pre-circulation alarm (temporary fault)
Check correct circulation of water and pump. Check supply
and return wiring is correct.
110
Safety thermostat tripped due to over temperature
(pump probably blocked or air in heating circuit)
Check safety thermostat and cable; check correct circulation
of water and pump
118
Hydraulic pressure too low.
Refill heating system by opening cold water tap
117
Hydraulic pressure too high.
Relieve pressure via relief valve or drain. Ensure water feed
is operating correctly.
125
No circulation of water
(control performed via temperature sensor).
Check correct circulation of water and pump.
Check correct connection of NTC sensor on pipe
128
Loss of flame
Check sensing electrode and cable, flue recirculation,
electrical continuity between burner and ground, gas
pressure, gas orifice. Enable automatic calibration.
Call authorized SERVICE center.
130
NTC flue sensor tripped due to over temperature
Check thermostat, correct circulation of water and pump.
Check status of primary exchanger.
131
Thermo fuse tripped due to over temperature or
wire harness disconnected from thermo fuse, off
the board, or wire harness may be cut.
Check thermo fuse, correct circulation of water and
pump. Check status of primary exchanger. Replace
heat exchanger. Call authorized SERVICE center.
Verify wire harness installation and continuity.
133
Ignition failure
Check correct operation of condensate trap. Check
sensing electrode, spark electrode and cable. Check
flue recirculation, electrical continuity between burner
and ground. Check gas orifice and gas pressure.
Enable automatic calibration function.
Call authorized SERVICE center
134
Gas supply valve blocked
Check gas pressure, sensing electrode, spark
electrode and cable, replace PCB
if it necessary.
Call authorized SERVICE center
135
Internal error
Verify all cables. Replace
PCB
.
Call authorized SERVICE center
160
Fan fault
Check fan and cable
162/317
Incorrect power supply frequency.
Incorrect power supply frequency.
13 - TROUBLE SHOOTING
240012879 REV A, [01/31/2020]
Summary of Contents for Dunkirk DCBF-125
Page 63: ...61 A 1 MODELS 125 Heat Only APPENDIX A WIRING DIAGRAMS 240012879 REV A 01 31 2020...
Page 64: ...62 APPENDIX A WIRING DIAGRAMS A 2 MODELS 165 Heat Only 240012879 REV A 01 31 2020...
Page 65: ...63 A 2 MODELS 150 Combi APPENDIX A WIRING DIAGRAMS 240012879 REV A 01 31 2020...
Page 66: ...64 A 4 MODELS 205 Combi APPENDIX A WIRING DIAGRAMS 240012879 REV A 01 31 2020...
Page 67: ...65 NOTES 240012879 REV A 01 31 2020...
Page 68: ...66 NOTES 240012879 REV A 01 31 2020...
Page 99: ...29 MODEL 150F Combi 150F FLOOR STANDING COMBI WIRING DIAGRAM PN 240012875 REV A 01 31 2020...
Page 101: ...31 205F FLOOR STANDING COMBI WIRING DIAGRAM MODEL 205F Combi PN 240012875 REV A 01 31 2020...
Page 106: ...36 Low Water Cutoff Detail LOW WATER CUTOFF NO NO YES PN 240012875 REV A 01 31 2020...
Page 114: ...44 NOTES PN 240012875 REV A 01 31 2020...
