Most of them plug into a 110v outlet right in back of the heater.
Rv hot water heater element testing.
The most obvious one is if the water heater element is damaged.
The location on the rv will vary but it will look something like this.
Suburban 120v t stat limit switch 232306.
Related reading to repair rv water heater.
Hot water heater element wrench.
Parts needed to service and repair rv water heater.
How to test a water heater element with a multimeter.
An electric water heater uses one or two heating elements to heat the water inside the tank.
12v dc suburban 232282 switch assembly.
Water heater anode rod.
Water heater tank rinsing wand.
Kohree rv water heaters magnesium anode rod kit hot water heater protection with rope for suburban and mor flo water heaters tank 3 4 npt threads 9 25 length 2 pack 4 7 out of 5 stars 206 11 55 11.
Both of them control their respective heating elements.
Unplug the heating element.
You can then test the element with the ohm scale or continunity setting.
One is at the top and the other is at the bottom.
1 3 june 13 2015 the secondary switch is accessed by removing the cover from the back side of the water heater.
You can test the element with the ohms function or a continuity setting.
Water heater troubleshooting pdf p a g e 5 version.
The upper thermostat must be damaged if your water heater is giving cold water after turning on the hot water tap and if the outlet water is getting cold after some time then the lower thermostat is damaged.
Water heater element testing is a very simple process.
On the suburban with the cover off you ll find the secondary switch in the bottom left corner.
When a water heater no longer produces hot water.
Because of this you should keep a check on the water heater element quite often.