Operating instructions

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Repair step 2
Install flame sensor
Figure 22
• Screw the flame sensor (11) into the housing of the control
box / blower unit.
Flame sensor tightening torque.
Connect flame sensor lead harness and electric motor
leads
Figure 23 / Sketch 2
• Latch the flame sensor lead har
ness (11) and the three leads
of the electric motor into position in the 14-pin connector (29)
Assemble the control box/blower unit and jacket
Sketch 2
Temperature sensor, Yellow
Sensor ground, Blue / White
Overheating sensor, Red
Motor, Phase 1, Pink
Motor, Phase 2, Green
Motor, Phase 3, Orange
Flame sensor +, Blue
Flame sensor, Brown
Glow plug 1, long cable , Brown
Glow plug 1 +, long cable , White
Glow plug 2 +, short cable , White
Water pump Brown , Black
Glow plug 2, short cable , Brown
Water pump, Black / Red
Note: • The leads may not lay against the housing.
• Always lay the Brown / White (long) leads of glow
plug 1 (5) last and latch into position in the 14-pin
connector (29).