Main boiler service mode

Combi Eco Range

Covers: Combi 25 Eco, Combi 30 Eco, Ecoinstaller 2

GC 47-467-01, 47-467-03

Enter Calibration Mode (Service / Max / Min Rate)

1. Ensure all external controls are calling for heat, and the selector switch is in the central heating and hot water position.
2. Turn both temperature control knobs fully anticlockwise.
3. Quickly turn the DHW temperature knob 1/4 clockwise twice and back fully anticlockwise.
4. The display will alternate between 'SF' and the current boiler temperature and both green LEDs will flash.
5. Turn CH temperature control knob fully clockwise to indicate maximum rate ('0' to '00' then 'P' alternating with temperature).
6. Turn CH temperature control knob fully anticlockwise to set minimum rate ('0').
7. The calibration function is active for 20 minutes unless the maximum CH temperature is exceeded, and can be disabled at any time by turning the DHW temperature knob.

From manual Comp No 5119466 - Iss 6 - 12/10, page 34.

CO₂ and CO from manual Comp No 5119466 - Iss 6 - 12/10, page 47. Check against the data badge.

IMPORTANT: The combustion for this appliance has been checked, adjusted and preset at the factory for operation on the gas type specified on the appliance data plate. No measurement of the combustion is necessary. Do not adjust the air/gas ratio valve. (page 33)

Eco Compact Heat

Covers: Insul 7

GC 41-467-40, 41-467-41, 41-467-42, 41-467-43

Enter/Exit Service Mode

1. Press the [chimney] button for 3 seconds.
2. CSM is activated and will go to the min rate.
3. Pressing again will make it adjust to max rate.
4. To exit press the RESET for 3 seconds.

From manual 7726859-01, page 42.

CO₂ and CO from manual 7726859-01, page 54. Check against the data badge.

The combustion for this appliance has been checked, adjusted and preset at the factory for operation on the gas type specified on the appliance data plate. (page 41)

Main Eco Compact Combi (manual 7716573-02)

Covers: Eco Compact 25 Combi

GC 47-467-14

Enter Chimney Sweep Mode (Max/Min Rate)

1. Fit the case front panel. The system must be cold, with gas and electric supplies on.
2. Turn both control knobs fully anticlockwise and leave for 10 seconds.
3. Turn the DHW knob 1/4 turn twice in quick succession (within 2 seconds).
4. "304" will appear in the display.
5. Turn the CH knob fully clockwise. "100" appears, indicating maximum output.
6. After checking at maximum, turn the CH knob fully anticlockwise. "0" appears, indicating minimum output.
7. Combustion must be measured and recorded at both maximum and minimum heat input.
8. To exit chimney sweep mode, turn the DHW control knob clockwise.

From manual 7716573-02, page 50.

CO₂ and CO from manual 7716573-02, page 62. Check against the data badge.

The CO2 must be only checked and adjusted to set the valve if a suitable calibrated combustion analyser is available, operated by a competent person. (page 62)

Main Eco Compact Combi (manual 7716573-06)

Covers: Eco Compact 30 Combi

GC 47-467-15

Entering Chimney Sweep Mode / Calibration Mode (Force Max & Min Rate)

1. Ensure the system is cold and the gas and electric supplies are turned on.
2. Turn both control knobs fully anticlockwise and leave for 10 seconds.
3. Turn the DHW knob 1/4 turn twice in quick succession (within 2 seconds). '304' will appear in the display.
4. Turn the CH knob fully clockwise. '100' will appear in the display, indicating maximum output.
5. After checking at maximum, turn the CH knob fully anticlockwise. '0' will appear in the display, indicating minimum output.
6. Once all relevant tests are completed, take out of chimney sweep mode by turning the DHW control knob clockwise.

From manual 7716573-06, page 52.

CO₂ and CO from manual 7716573-06, page 64. Check against the data badge.

After replacing the gas valve the CO2 must be checked and adjusted. Only change the valve if a suitable calibrated combustion analyser is available, operated by a competent person. (page 63)

Main Eco Compact System

Covers: Eco Compact System

GC 41-467-30

Enter Chimney Sweep Mode (Max/Min Rate)

1. Fit the case front panel. The system must be cold, with gas and electric supplies on.
2. Turn both control knobs fully anticlockwise and leave for 10 seconds.
3. Turn the right hand knob 1/4 turn twice in quick succession (within 2 seconds).
4. "304" will appear in the display.
5. Turn the CH knob fully clockwise. "100" appears, indicating maximum output.
6. After checking at maximum, turn the CH knob fully anticlockwise. "0" appears, indicating minimum output.
7. Combustion must be measured and recorded at both maximum and minimum heat input.
8. To exit chimney sweep mode, turn the DHW control knob clockwise.

From manual 7716600-01, page 44.

CO₂ and CO from manual 7716600-01, page 54. Check against the data badge.

The CO2 must be only checked and adjusted to set the valve if a suitable calibrated combustion analyser is available, operated by a competent person. (page 54)

Main Eco Elite Combi 25 - 30

Covers: Eco Elite 25 Combi ErP, Eco Elite 30 Combi ErP

GC 47-467-12, 47-467-13

Entering Calibration / Service Mode

1. Ensure that all external controls are calling for heat.
2. Turn both temperature control knobs fully anticlockwise, then quickly turn the DHW temperature knob 1/4 clockwise twice and back fully anticlockwise.
3. The display will now alternate between 'SF' and the current boiler temperature and both green LEDs will flash.
4. To set to maximum rate: Turn the left hand CH temperature control knob fully clockwise. The display will show '00', indicating maximum rate, then revert to 'P' alternating with the current boiler temperature.
5. To set to minimum rate: Turn the left hand CH temperature control knob fully anti-clockwise. When the display reads '0' the boiler runs at minimum rate.
6. This function is maintained for 20 minutes unless the maximum CH temperature is exceeded and can be disabled at any time by turning the right hand DHW knob.

From manual 7219660 - 01, page 28.

CO₂ and CO from manual 7219660 - 01, page 43. Check against the data badge.

To assist the boiler to light prior to final setting, use a suitable hexagon key to wind out the Throttle Adjustment Screw until it is flush with the valve body, then turn the screw 4 full turns clockwise. If the boiler will not light, or the correct CO2 cannot be achieved contact the ‘heateam’ technical helpline. (page 42)

Main Eco Elite System

Covers: Eco Elite 24 System ErP, Eco Elite 28 System ErP

GC 41-467-28, 41-467-29

Entering Calibration Mode (Max and Min Rate)

1. Ensure that all external controls are calling for heat. The actual current boiler temperature is shown on the display.
2. Turn both control knobs fully anticlockwise, then quickly turn the right hand knob 1/4 clockwise twice and back fully anticlockwise.
3. The display will now alternate between 'SF' and the current boiler temperature and both green LEDs will flash.
4. To set to maximum rate: Turn the left hand knob fully clockwise. The display will show '00', indicating maximum rate, then revert to 'P' alternating with the current boiler temperature.
5. To set to minimum rate: Turn the left hand knob fully anti-clockwise. When the display reads '0' the boiler runs at minimum rate.
6. This function is maintained for 20 minutes unless the maximum CH temperature is exceeded, or the function is disabled at any time by turning the DHW temperature knob.

From the installation and servicing manual, page 27.

CO₂ and CO from the installation and servicing manual, page 41. Check against the data badge.

To assist the boiler to light prior to final setting, use a suitable hexagon key to wind out the Throttle adjustment screw until it is flush with the valve body, then turn the screw 4 full turns clockwise. If the boiler will not light, or the correct CO2 cannot be achieved call Baxi Customer Support 0344 871 1545. (page )

Main Heat 12 - 15 - 18 - 24 Condensing Central Heating Boiler

Covers: 12 Heat ErP, 15 Heat ErP, 18 Heat ErP, 24 Heat ErP

GC 41-467-23, 41-467-24, 41-467-25, 41-467-26

Operation at Maximum Rate for Combustion Check

1. Ensure all external controls are calling for heat, that the system is cold and the boiler control knob is turned fully clockwise.
2. Allow the combustion to stabilise. Do not insert probe to avoid 'flooding' the analyser.

From manual 7647617 - 01, page 40.

Operation at Low Rate for Combustion Check

1. Set boiler to operate at a low rate. If it is not possible to adjust the boiler to run at minimum rate using the boiler controls, the system must be set such that the boiler will modulate to as low an input as possible without the burner extinguishing (e.g. by closing radiator valves).
2. Allow the combustion to stabilise. Do not insert probe to avoid 'flooding' the analyser.
3. The gas rate must be checked & recorded whilst the boiler is operating in this condition.

From manual 7647617 - 01, page 40.

CO₂ and CO from manual 7647617 - 01, page 6. Check against the data badge.

The boiler is self-regulating dependent upon the system load. No adjustment of the gas valve is permissible. (page 39)

IMPORTANT: The combustion for this appliance has been checked, adjusted and preset at the factory for operation on the gas type specified on the appliance data plate. No measurement of the combustion is necessary. Do not adjust the air/gas ratio valve. (page 39)

MULTIPOINT FF User Operating

Covers: Multipoint FF 3

GC 52-467-02

Service Mode Activation

1. Set the main switch to position O (off).
2. On the control unit front panel, place the rotary temperature control knob at position '60'.
3. Press and hold the burner indicator button.
4. Set the main switch to position I (on). The green burner indicator button blinks.

From manual 6 720 607 160, page 18.

Gas Rate Adjustment

1. Operate appliance at maximum power by opening hot water tap (after activating service mode).
2. Perform maximum gas adjustment on adjuster screw (Fig 22 pos 3).
3. Place rotary temperature control at position '35' for minimum power.
4. Perform minimum gas adjustment on adjuster screw (Fig 22 pos 2).
5. Replace transparent plastic cover on the gas valve.

From manual 6 720 607 160, page 20.

The burner pressure is factory set and should not require adjustment. Do NOT use magnetic tools to adjust the gas valve. (page 18)

System Eco Range

Covers: System 28 Eco

GC 41-467-12

Enter Calibration/Service Mode

1. Turn both temperature control knobs fully anticlockwise.
2. Quickly turn the DHW (or right hand) temperature knob 1/4 clockwise twice and back fully anticlockwise.
3. The display will alternate between 'SF' and current boiler temperature and both green LEDs will flash.
4. Turn CH temperature control knob fully clockwise to indicate maximum rate ('00' then 'P'), or fully anticlockwise for minimum rate ('0').

From the installation and servicing manual, page 34.

CO₂ and CO from the installation and servicing manual, page 46. Check against the data badge.

The combustion for this appliance has been checked, adjusted and preset at the factory for operation on the gas type specified on the appliance data plate. No measurement of the combustion is necessary. Do not adjust the air/gas ratio valve. (page 33)