Question about Honda Cars & Trucks
Should the condenser fan start up as soon as you turn on the A/C
No the fan only comes on when the AC system high side pressure reaches a predetermined point, so it may not run for some time after the compressor engages.
Posted on Feb 09, 2012
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Posted on Jan 02, 2017
you should not have to remove the bumper to replace these, you will have to remove the core support, wich you will see 2 bolts on each side, just oin front of the radiator....
Posted on Nov 26, 2008
The fan module is the big silver box with fins on it, right next to the fans. Just follow the fan cables and you will find it. Don't jumper the fans without unplugging or you may destroy the power transistors in the fan unit. Check the temperature sensor for the fan control unit - near the front of the engine - it should have some resistance - not be short circuit or open circuit, it is a sensor, not a switch. If short or open, that is likely to be the problem, otherwise, ensure that the control units have electrical supply, otherwise, it is very likely to be the control unit.
Posted on Aug 03, 2009
that seems to be the problem. If the fan does not turn on when the a/c is turned on it could be a fuse, relay, control box, or just a bad fan. Try connecting the fan directly to see if it works. Does this car have 2 fans? normally all the small cars have 2 fans one for the engine cooling and one to assist the first when the a/c is turned on. Without the fan pulling air through the a/c condensor the had pressure goes up high enough to shut off the a/c compressor. It also causes some cars to run warmer than usual when stopped. Check the a/c condensor for blockage also which doesn't have anything to do with your fan not working.
Posted on Aug 18, 2009
Do an A/C performance test ( make sure there is Refrigerant in the system otherwise that fan will never go on. If there is refrigerant in the system now you have to figure out which sensor including the switch,and a/c relay is giving you the headache.
Put key in ignition and turn it to on position. Now get you meter and check for B+ on both sides of each sensor in this circuit. The sensor that doesn't have B+ on both sides of its terminals is your culprit. Why? Because the sensor is basically and on /off switch with a set of limitation built into it.
Relay checks are basic continuity and resistance checks. B+ here usually means switch is a-oK. use shop manual to check the terminal for the switch at the relay.
Lastly unplug electical connector to Compressor and run a set of jumper wires from the battery to the compressor see if it magnatizes the clutch. If it doesn't you need a new compressor.
Posted on Mar 19, 2010
There is a high pressure switch on the high side of the ac system,it most likely is bad.
Posted on Apr 06, 2010
Testimonial: "I had change the pressure switch but the problem still same"
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