bode Posted June 16, 2014 Share Posted June 16, 2014 Hi, Was told I have a bad condenser fan. I want to test it to see if it works. How do I bypass relays and/or pressure switch to see if high speed works. Don't know how to diagnose problem. High speed not working. thanks for any help Bode Quote Link to comment Share on other sites More sharing options...
billydpowell Posted June 18, 2014 Share Posted June 18, 2014 CONDENSER FAN ON–VEHICLE INSPECTION 1. INSPECT CONDENSER FAN OPERATION Check the fan operation at each temperature and refrigerant pressure, as shown in the chart below. Engine coolant and refrigerant condition A/C switch Magnetic clutch Fan motor speed 83 °C (181 °F) or below OFF or ON OFF OFF 90 °C (194 °F) or above OFF or ON OFF or ON High 83 °C (181 °F) or below and the refrigerant pressure is approx. 1,520 kPa (15.5 kg/cm2, 220 psi) or above ON ON Low If operation is not as specified, proceed next inspection. 2. INSPECT FAN MOTOR OPERATION (a) Disconnect the connector. ( B) Connect the battery and ammeter to fan motor connector, as shown in the illustration. © Check the fan rotates smoothly and check the reading on ammeter. Specified amperage: 4.2 – 4.4 A If operation is not as specified, replace the fan motor. If operation is as specified, check the fan relay, pressure switch and pressure switch. Quote Link to comment Share on other sites More sharing options...
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