Baxi Ecogen 24 User Operating Instructions Manual Download Page 18

11.0 Error Codes

18

© Baxi Heating UK Ltd 2011

Error code: Display

Description

Lockout/Reset action
Eng

Sup

10: Outside sensor

Fault outside temp sensor1

AR

AR

20: Boiler flow sensor

Fault boiler flow temp sensor

AR

AR

40: Boiler return sensor

Fault return temp sensor boiler

AR

AR

50: DHW tank sensor

Fault DHW1 sensor

AR

AR

60: Room sensor 1

Fault room temp sensor HC1

AR

AR

65: Room sensor 2

Fault room temp sensor HC2

AR

AR

83: BSB short-circuit

Boiler system bus short-circuit

AR

AR

84: BSB address collision

More then 1 room units are assigned to the same HC
Assign one of them to HC2 or assign QAA7x not as room unit

AR

AR

85: Radio communication

Communication to radio device interrupted

AR•

AR•

95: Time of day invalid

The real time clock unit detected corrupted time of day.

96: Minor SW failure

Failure in Class B-SW: Stack overflow or program sequence failure

AR

AR

127: Legionella temperature

Legionella temperature not achieved within 48 hours

AR+

AR+

157: Boiler Flow Overheat stat

Boiler flow overheat thermostat / safety chain open

UR

UR

158: Condensate

Condensate switch of safety chain opened

UR

UR

164: Flow

Intermitent Low flow or faulty flow detector

AR

AR

257: Pack sensor

Fault pack temp sensor

258: Pack over- temp

Internal ambient temperature to high

AR

AR

259: CJC sensor

Fault cold junction compensation sensor

AR

261: Loss of Engine flame 

No flame after five ignition tries in Engine 

UR

262: Loss of Supplementary flame No flame after five ignition tries in Supplementary

UR

263: Engine BCU failure

Multiple communication request of Engine Burner Control Unit 
unsuccessful.
1) Failure caused by BCU

ARP

2) BCU Communication Timeout on Main Control Board

AR

264: Supp.  BCU failure

Multiple communication request of Supp. Burner Control Unit 
unsuccessful.
1) Failure caused by BCU

ARP

2) BCU Communication Timeout on Main Control Board

AR

270: excessive temp. diff. 

Excessive max temperature difference across the heat exchanger 
during 5 minutes or excessive limit temperature difference. 
If temperature difference fell below (threshold - switching 
differential boiler): automatic reset 
- when the maximum setting was exceeded immediately

AR

AR

- when the limit value was exceeded after 10 minutes

AR 10’

274: Dry fire protection

7 l/min boiler flow not detected after 4 minutes

UR

UR

278: Max Temp Rise

Maximum flow temperature rise exceeded, automatic reset after 
10 minutes

AR 10’

11.1

List of Error Codes

In the table below: - PCB = Main Control Board, BCU = Burner Control Unit. 

UR = User Reset, AR = Automatic Reset, ARP = Automatic Reset after Power Down

NOTE: An automatic reset is only done if the fault condition has cleared. 

• After 10 minutes or after down power (ARP)
+ Will clear message if 65°C is achieved - does not inhibit appliance on.

Summary of Contents for Ecogen 24

Page 1: ...erating Instructions Important Warranty Information Please keep these instructions in a safe place If you move house please hand them over to the next occupier Ecogen 24 1 0 Gas Fired Wall Mounted Con...

Page 2: ...e for Operating Quick Reference Guide This appliance contains a pressure vessel filled with Helium to 23 bar Do not strike drop drill or puncture the vessel Do not unbolt any of the covers or flanges...

Page 3: ...Easy Menu Button Commonly required functions are available more quickly via the Easy Menu Button To access press the Easy Menu Button and turn the Selector Button to scroll through confirm your selec...

Page 4: ...tic 7 All interactions with the appliance are through the removable i THINK Controller mounted either on the front of the appliance or on a remote wall cradle 2 2 Important Notes 1 Read and follow the...

Page 5: ...estic hot water are set to 24hr operation see sections 7 1 and 7 4 choose On in both cases 4 Refer to the instructions for the existing programmers for setting the timed periods and the room temperatu...

Page 6: ...tton and the minute number flashes Turn Button to the required minute Press the Selector Button Hours minutes 11 30 Set time and date Day month 05 06 Set time and date Turn the Selector Button clockwi...

Page 7: ...day Set time and date Information The basic display is shown If the basic display is not showing press the MENU button until the basic display is shown Press the MENU button Time hot water Operator se...

Page 8: ...time will flash Turn the Button to the required time Press the Button to select Press the Selector Button and the 3rd Time ON time will flash Turn the Selector Button to the required time Press Butto...

Page 9: ...If the basic display is not showing press the MENU button Press the MENU button Holidays heating CH1 Time central heating CH1 Time hot water Mon Sun Select days Time hot water Turn the Selector Button...

Page 10: ...e Button to the required time Press the Button to select Press the Selector Button and the 3rd Time ON time will flash Turn the Selector Button to the required time Press Button to select STEP 11 STEP...

Page 11: ...ntil the next programmed comfort period when the setpoint will revert to the permanent comfort setpoint see Section 7 8 7 3 Optimum start Instead of the heating starting at the Programmed times the op...

Page 12: ...tary burner to light during DHW demands e Eng bu only may be reselected at any time 7 6 Adjusting the DHW Cylinder Temperature 1 If the DHW Cylinder is fitted with a temperature sensor the cylinder se...

Page 13: ...ctor Button 7 8 Adjusting the Room temperature setpoint 1 The room temperature setpoint may be adjusted temporarily as long as the appliance is not in standby or protection mode 2 From the main screen...

Page 14: ...locked appears b In this state any alterations can be made until returning to the standard screen when the programming lock is activated again c To remove the programme lock permanently whilst tempora...

Page 15: ...months 2 Telephone customer service 8 10 Selecting Diagnostics engine The following information is also available by pressing the menu button and selecting Diagnostics engine by pressing the Selector...

Page 16: ...reset can only be carried out on the i THINK Controller when it is not a Room Sensor 2 To perform a user reset a on the 5 LED Receiver press the reset button at the bottom of the unit after a few seco...

Page 17: ...your boiler 6 Your boiler should have the following minimum clearances for Safety and Maintenance Top 200mm Bottom 200mm Left side 5mm Right Side 60mm Front 5mm In Operation 450mm For Servicing 7 If y...

Page 18: ...AR AR 259 CJC sensor Fault cold junction compensation sensor AR 261 Loss of Engine flame No flame after five ignition tries in Engine UR 262 Loss of Supplementary flame No flame after five ignition t...

Page 19: ...e burner BCU isn t consistent AR 423 BCU Supp bu inconsistent Transmitted state of the supplementary burner BCU isn t consistent AR 424 Rep loss of flame Eng bu Repeated loss of flame engine burner UR...

Page 20: ...ity must be left on and the appliance set in the central heating mode 4 The boiler incorporates an integral pump protection feature which continually monitors the time since the pump last operated To...

Page 21: ...inside back pages of the installation instructions supplied with the product and that you have signed it to say that you have received a full and clear explanation of its operation The installer is l...

Page 22: ...14 0 Notes 22 Baxi Heating UK Ltd 2011...

Page 23: ...14 0 Notes 23 Baxi Heating UK Ltd 2011...

Page 24: ...trations provided in this leaflet have been carefully prepared but we reserve the right to make changes and improvements in our products which may affect the accuracy of the information contained in t...

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