![]() Converter 12-volt power output ratings generally range from about 20 to 100 amperes (amps), although small campers may have less. ![]() The larger and more amenity-filled the coach, the higher the power requirement. Power converters are available in various amperage output ratings, designed to meet the RV’s 12-volt DC system demands. If the fan motor is good, you should be able to jumper wire the sensor and get the fan to operate. Make sure voltage is getting through the temperature sensor to the fan motor before condemning the motor. The fans usually run on 120 volts AC, so be careful when measuring voltage and use the 200 volt AC meter scale. ![]() The cooling fan should go on and off during converter use, controlled by a temperature sensor. It should be around 12 to 14 volts if it is operating properly, if it’s lower you may have a faulty power converter.Ĭonverters also have a small fan which cools the internal components during operation. After that, measure for DC voltage (which requires a different scale on the meter) where power comes from the converter into the 12-volt DC breaker box.If everything checks out, listen the unit should hum if it is operating.See if it has fuses on it replace burned out ones with exact replacements. Then check for power going into the converter inside the coach. ![]() If so check if the GFCI is tripped, reset if needed.
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