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Home >> Mercedes Benz >> 2001 >> S500 >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Climate Control -- Basic Knowledge -- 215 & 220 Chassis >> Basic Knowledge >> Blower regulator, location/function - GF83.10-P-2103 >> Blower regulator, function - GF83.10-P-2103-01I

Blower regulator, function - GF83.10-P-2103-01I

Function 

With the blower buttons (LOWER TEMPERATUREBLOWER BUTTONRAISE TEMPERATURE ) or in the automatic mode a control voltage (0 - 6 V) is transferred from the automatic A/C pushbutton control module to the blower regulator. The latter then regulates the operating voltage (0 - 12 V) according to the control voltage. This provides the control of the blower speed in the range of 0 - 100 %.

Blower switch position (reading on display) Blower control voltage (manual) Blower control voltage (automatic mode)
1 segment min. 1.60 V 0 V to 1.70 V
2 segment 1.80 V 1.70 V to 1.90 V
3 segment 2.00 V 1.90 V to 2.15 V
4 segment 2.30 V 2.15 V to 2.60 V
5 segment 2.85 V 2.60 V to 3.10 V
6 segment 3.60 V 3.10 V to 4.55 V
7 segment max. 6.00 V 4.55 V to 6.00 V
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