How To Test Rv Water Heater Thermostat

For this unscrew the terminals on the.

How to test rv water heater thermostat. Take out the panel some models may have screwed panel so you may. If the water is cold the multimeter will point near zero. When the water is hot there shouldn t be. Touch one probe of the multimeter to each terminal on the lower thermostat.

Turn off power to your water heater. When the water is cold there should be continuity between the contacts. If that is the case and you are receiving sufficient voltage you ll then use a test light to work your way from the thermostat back to the coil. Now you need to pull out the defective thermostat.

The lower thermostat has only two terminals. Leave the upper thermostat in the lowest setting and test the lower thermostat. Turn off the power supply for safety purposes. This video demonstrates how to test a thermostat on a water heater.

If the water is hot enough at appointed temperature the meter won t show reading. If the opposite thing happens that means your thermostat has defected. Light the stovetop burner and look for a steady flow with a solid flame. Find the water heater bypass valve usually located inside the rv behind the heater.

Water heater isn t heating or heats poorly. Connect the multimeter pin ends on point 1 2 as shown in the picture below. All you need is to follow the instructions mentioned in the following steps. You can pull the wires off and test the thermostat with a continuity tester if you re too cheap to buy the replacement kit.

Next use a voltage meter to check the input to the heater which should be at least 10 5 volts. Use the screwdriver to set the lower thermostat to the highest setting. The thermostat is a commonly replaced part fo.