DK9802C2 PV50c user manual ENG
Vers: C2 page25/38
8.1
Replacing the igniter
Figure 18 Igniter and safety thermostat
8.2
Resetting safety thermostat
The green arrow Figure 18 shows the location of safety thermostat on burner. When burner is
overheated the safety thermostat powers it off. Overheating may arise when draught in boiler is in wrong
direction. Thermostat is located on the horizontal tube of feeder auger.
The safety thermostat (Figure 19) has to be reset manually:
1.
Make sure the burner has cooled down and disconnected from mains.
2.
Remove burner’s covers.
3.
Press small button on thermostat. See arrow Figure 19.
4.
Put covers back.
5.
Connect mains supply.
6.
Turn on the burner.
7.
If flame indicator keeps on flashing, replacement of thermostat is needed. If mains supply returns but
the message NO POWER remains in screen, restart burner by holding OK and ESC buttons down more
than 3 seconds.
3
4
2. In order to remove burner’s upper
cover, firstly open burner’s lower cover.
Then remove upper cover's screws (3) 2
pcs. Pull the cover upwards.
Notice!
It might be necessary to remove
user interface buttons from the controller
board to complete removing upper cover
from the burner.
1. Disconnect burner from the mains supply.
2. Open burner covers.
3. Disconnect igniter wiring from the control
board X1, connector 1 and 2.
4. Loosen igniter fixation screw (4) with cross-
head screwdriver.
5. Remove igniter from its housing.
6. Install and connect new igniter.
7. Make sure, that igniters end is on the same
level with rear wall of burning chamber.
Caution!
When igniter’s end is out of its
housing, it is in touch with direct flame and will
burn out very fast.
Figure 17 Removing upper cover
