Rv Water Heater Element Ohms

Rv water heater electric heating element trouble.

Rv water heater element ohms.

Take 1 of the wires off of a water heater element. First make sure the heating element is off. Atwood 92249 electric water heater replacement parts 110 vac element gasket kit. You can then test the element with the ohm scale or continunity setting.

Smith describes the actual ohm reading you d expect if testing a factory oem heater element of the wattage shown. The gas works normally. Since we know that the hot water electrical circuit feeds 220 vac to the 16 ampere heating element the resistance of that element is equal to 13 75 ohms. Unplug the heating element.

Elements do have some resistance so a reading of 10 16 ohms is normal with higher ohm readings for 3 500 watt elements and lower readings for 5 500 watt elements. Atwood mobile products llc has been a world leader in designing engineering and manufacturing appliances and hardware for the rv industry for over 30 years. Each of a hot water heater s elements has 2 electrical wires running to screws that hold the element in place. Even without that level of detail there is a simple test you can perform to see if an electric water heater heating element is in good working order.

Remove 1 wire it doesn t matter which one by finding its loose end and unraveling it from around the metal element. Choose which heater element you d like to test first. Also measure the resistance between each of the two. Most of them plug into a 110v outlet right in back of the heater.

You can test the element with the ohms function or a continuity setting. The water heater element ohms chart left courtesy a o. Posted by rv doctor. In order to find the resistance of the heater element from the above described section we must algebraically modify the formula to read r v a.

We can round that number up to 14 ohms.