Hi,
Someone save me from unnecessary diagnostics - is the pusher fan at the front of my '93 Maverick meant to be on whenever the A/C is on, or is it purely temperature driven?
Would appreciate a tip-off.
Jason
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A/C pusher fan
ac
Both, The a/c puts extra load on the engine and therefore i think the manuacturer thinks in some climates the engine may heat up.
ummm i think it is wired through a pressure switch on top of the "receiver drier sightglass"
Temperature rise = pressure rise so when temperature goes up the pressure raises and fan switches on.
Temperature rise = pressure rise so when temperature goes up the pressure raises and fan switches on.
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big red wrote:ummm i think it is wired through a pressure switch on top of the "receiver drier sightglass"
Temperature rise = pressure rise so when temperature goes up the pressure raises and fan switches on.
Not a 100% sure but I think that switch is a " low gas " safety switch, If the gas leaks out then the aircon wont operate but if you "bypass" this switch it fires up straight away...
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there is two little relays that control that fan, they are located together, but where they are varies depending on build date it seems 
follow rthe wiring from the fan. One relay is powered up by the A/C being switched on, the other is turned on and off by a temp sensor in the A/C circuit somewhere. When they are both energized your fan runs.
they thing on top of the condensor is a low gas shutoff to stop the compressor getting hammered.
follow rthe wiring from the fan. One relay is powered up by the A/C being switched on, the other is turned on and off by a temp sensor in the A/C circuit somewhere. When they are both energized your fan runs.
they thing on top of the condensor is a low gas shutoff to stop the compressor getting hammered.
mine was an 89 diesel and the fan wires went to the pressure switch on top of the receiver drier.
i didnt buy it new but it looked like a factory job.
i think mine had 4 wires to pressure switch...one set for the fan and the other set to control the compressor.
i didnt buy it new but it looked like a factory job.
i think mine had 4 wires to pressure switch...one set for the fan and the other set to control the compressor.
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