146 English 5.906-736.0 Rev. 00 (07/15)1 Ignition transformer2 Screw3 Cable connections Remove 3 cables from the ignition transformer. Loosen the screw. Disconnect the ignition transformer electrically.NOTEObserve the cable run with the electrical connection!NOTEThe two lower cable connections connect the ignition elec-trodes.The assignment right/left is not important in this case.1 Bracket2 Flame sensor Unscrew the support from the burner cover. Unclip the catch, open the support. Slide out the flame sensor and carefully clean it on thesensor head (transparent part).NOTEWhen sliding the flame sensor into the support, ensure thatit is in the correct position. Otherwise the support cannotbe closed.NOTEWhen changing the flame sensor, it must be electricallydisconnected.Observe the cable run with the electrical connection!1 Exhaust temperature sensor Push the two nibs into the support, slide out the temper-ature sensor. Carefully clean the temperature sensor.ATTENTIONRisk of damage to equipment. The exhaust temperaturesensor in the chimney is connected to the thermostatswitch with a capillary tube. This tube must not be kinked,as otherwise the sensor will be damaged!11.12.3 Changing the ignition transformer11.12.4 Cleaning / changing the flame sensor11.12.5 Cleaning / changing the temperature sensor exhaust gas