If the power doesn’t pass through once, but there is enough load or a temperature increase, the sensor is faulty. The load can be added by turning on the lights. Check that power is going to the sensor and that when it reaches max temperature or load, that the power is then going to the fan.īringing it up to temperature can be done using a heat gun or hairdryer. If internal access is available, you can do some further RV power converter troubleshooting. It is possible for these sensors to fail, and as a result, not signal the fan to start. A load sensor measures how many 12-volt accessories are running and starts the fan. Temperature and load sensorsĪ temperature sensor measures heat build-up produced by the converter and signals the fan to turn on for cooling. This can be significantly cheaper than replacing the entire power converter. It is possible to replace just the fan if you can source it. If it is receiving power but isn’t turning on, odds are the fan is bad. With a multimeter, you can check that the fan is receiving power. If the fan fails, the converter can overheat and cause premature failure. When working correctly, the converter fan should be turning on periodically to help cool the internal components. Locating and replacing the fan, temperature sensor, load sensor, or circuit board in many cases warrants the replacement of the entire power converter. The power converter will have sensitive electrical connections and a circuit board that must be handled with care. Also, make certain the AC breakers in the AC PANELBOARD indicate ON. If 12 volt lights and motors will NOT operate as indicated above, check to make certain 120 VAC power is properly attached to RV. If this is the case, RV power converter troubleshooting can be difficult on these components. Locate the short and take the necessary steps to repair it.
Many converters are riveted together as they are not meant to be serviced by owners.
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