Rv Water Heater Element Ohms

Each of a hot water heater s elements has 2 electrical wires running to screws that hold the element in place.

Rv water heater element ohms.

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. The water heater element ohms chart left courtesy a o. Also measure the resistance between each of the two. 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.

We can round that number up to 14 ohms. Smith describes the actual ohm reading you d expect if testing a factory oem heater element of the wattage shown. First make sure the heating element is off. The gas works normally.

Most of them plug into a 110v outlet right in back of the heater. 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. Take 1 of the wires off of a water heater 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.

Therefore the resistance measurement should be a little over 10 ohms between the two contacts on the heating element. Rv water heater electric heating element trouble. Atwood 92249 electric water heater replacement parts 110 vac element gasket kit. In our motorhome the electric portion of the water heater has quit working.

You can test the element with the ohms function or a continuity setting. 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. You can then test the element with the ohm scale or continunity setting.

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.