SEAT Workshop Service and Repair Manuals > Leon Mk2 > Heating, ventilation, air conditioning system | Supplementary heating | Aux. heater/heater booster | Auxiliary heater -D3W- (supplementary heater), vehicles: ? 05.00 | Start sequence

Start signals

t	Terminal 30 from fuse box

t	D+ from alternator; -engine running-

t	Temperature at temperature sensor -G18- less than 75 °C

t	Temperature at ambient temperature switch -F38- less than 5 °C

Note

If the temperature at flame monitor -G64- is greater than 70 °C it will be cooled for 4 minutes at a higher blower speed. Then the unit will start.

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