Eberspracher Airtronic D2 Operations Instructions download pdf (Page 28)

Removing the combi-sensor (overheating sensor /

flame sensor)

• Remove the

AIRTRONIC

cover (see fig. 1)

• Remove the controller (see fig. 2)

Disconnect both connectors of the cable harness “combi-

sensor” from the controller.

Unlock clip from combi-sensor.

Remove combi-sensor.

Fig. 5

햲 Cable harness “combi-sensor”

햳 Clip

Checking the combi-sensor

Observe a max. temperature of 320 °C for checking

the combi-sensor.

Overheating sensor

Check the overheating sensor with a digital multimeter.

If the resistance value is outside the set point indicated in

the values table, then the combi-sensor must be replaced.

Flame sensor

Check the flame sensor with a digital multimeter.

If the resistance value is outside the set point indicated in

the values table, then the combi-sensor must be replaced.

Temperature (°C)

Resistance (Ohm)

Resistance (kOhm)

Temperature (°C)

2400

2200

2000

1800

1600

1400

1200

1000

800

–40 0 50 100 150 200 250 300 350

1800

1600

1200

1000

800

600

400

200

–40

2000

–20

100

120

140

200

Values table overheating sensor

Temperature °C Resistance kW min. max.

- 40 1597.00 1913.00

- 20 458.80 533.40

0 154.70 175.50

20 59.30 65.84

40 25.02 28.04

60 11.56 13.16

80 5.782 6.678

100 3.095 3.623

120 1.757 2.081

140 1.050 1.256

160 0.6554 0.792

180 0.4253 0.5187

200 0.2857 0.3513

Values table flame sensor

Temperature °C Resistance W min. max.

- 40 825.90 859.60

0 980.00 1020.00

40 1132.30 1178.50

80 1282.80 1335.10

120 1431.50 1489.90

160 1578.30 1642.80

200 1723.40 1793.70

240 1866.60 1942.80

280 2008.10 2090.00

320 2147.70 2235.40

360 2285.50 2378.80

400 2421.50 2520.30

햲

햳

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Eberspracher Airtronic D2 Operations Instructions Page 28

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