32 Installation and maintenance instructions Ultimate 3 0020239568_03
3. Carefully remove the electrode from the combustion
chamber.
4. Check that the electrode ends (4) are undamaged.
5. Check the electrode distance.
– Clearance for the ignition electrodes: 3.5 to 4.5 mm
6. Make sure that the seal (5) is free from damage.
▽ If necessary, replace the seal.
12.10 Cleaning the condensate trap
1. Unclip the lower section of the condensate trap (1) from
the upper section of the condensate trap (2).
2. Remove the float (3).
3. Flush out the lower section of the condensate trap with
water.
4. Re-insert the float (3).
Note
Check whether the float is present in the
condensate trap.
5. Clip the lower section of the condensate trap (1) into the
upper section of the condensate trap (2).
12.11 Installing the gas-air mixture unit
1. Install the burner.
2. Install two new burner seals in the burner hood.
3. Install the gas-air mixture unit.
4. Tighten the screws in a cross-wise pattern until the
burner flange fits closely and uniformly onto the mat-
ing surfaces.
– Tightening torque: 7 Nm, if a torque spanner is
available
5. Install the flue pipe.
6. Install the air intake pipe.
12.12 Draining the product
1. Close the service valves of the product.
2. Start check programme P.05 (→ Page 24).
Check programmes – Overview (→ Page 36)
3. Open the drain valves.
12.13 Completing inspection and maintenance
work
1. Check the gas connection pressure (gas flow pressure).
(→ Page 27)
2. Check the CO₂ content. (→ Page 30)
3. If required, set the maintenance interval.
4. Check the product for tightness. (→ Page 28)
5. Install the front casing. (→ Page 15)
6. Fill out the relevant Service Record section in the
Benchmark Checklist located at the rear of this
document.
13 Troubleshooting
13.1 Eliminating faults
▶ If fault codes (F.XX) are present, consult the table in the
appendix for advice or use the check programme(s).
Overview of fault codes (→ Page 40)
Check programmes – Overview (→ Page 36)
If several faults are present at the same time, the fault codes
are displayed alternately followed by the time at which the
respective fault occurred.
▶ Hold the button down for more than 3 seconds.
▶ If you are unable to clear the fault code and it reappears
despite several reset attempts, contact customer service.
13.2 Calling up the fault memory
The last ten fault codes are stored in the fault memory (to-
gether with the time at which the respective fault occurred).
▶ Press and hold the button for more than
seven seconds.
Overview of fault codes (→ Page 40)
▶ Press the button to exit this menu.
13.3 Deleting the fault memory
▶ Delete the fault memory (d.94).
Overview of diagnostics codes (→ Page 37)
13.4 Resetting parameters to factory settings
1. Navigate to diagnostics code D.096 in the installer level.
2. Set the diagnostics code to 1, and confirm by pressing
.
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