Flame temperature sensor
| Flame temperature sensor | 
| To remove | 
| 1. | Remove the cover over the combustion air fan.   
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| 2. | Remove the four control module bolts. | |
| 3. | Carefully extract the control module, unplug the connector and remove the control module from the heater.   | |
| 4. | Remove the centre housing.   | |
| 5. | Open connector B2 and extract the leads for the flame temperature sensor. Use tool 85 80 110.   
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| 6. | Remove the flame temperature sensor. | |
| To fit | 
 
    
    | 1. | Fit the flame temperature sensor. | |
| 2. | Fit the flame temperature sensor's leads in connector B2. 
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| 3. | Fit the centre housing.   | |
| 4. | Plug connector B2 into the control module.   | |
| 5. | Fit the control module.   | |
| 6. | Fit the cover. 
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