How To Check If A Honeywell Zone Valve Is Working

Honeywell zone valves are used in many hydronic heating systems. A zone valve is used to control the flow of hot water to a specific area of the home. The zone valve is opened or closed by a thermostat in that area of the home. If the zone valve is not working, the thermostat will not be able to control the temperature in that area of the home.

How To Check If A Honeywell Zone Valve Is Working

There is no one definitive answer to this question. However, some methods for checking whether a Honeywell zone valve is working include checking the pilot light, testing the voltage at the valve, and checking the flow of water through the valve.

-a honeywell zone valve -a screwdriver

  • Turn the system on and wait for the
  • Check to see if the power is on by looking at the light on the valve
  • With the system off, turn the dial on top of the valve to the “test” position

-Check if the Honeywell zone valve is getting power by testing the voltage at the terminals. -If the voltage is present, then check for continuity through the valve by testing for resistance between the two terminals. -If there is continuity, then the valve is likely working properly.


Frequently Asked Questions

How Do You Test A Zone Valve On A Boiler?

The best way to test a zone valve on a boiler is by checking the thermostat. Turn it up to the temperature you want and see if the zone valve opens.

How Do You Test A Zone Valve With A Multimeter?

Testing a zone valve with a multimeter is relatively easy. First, identify the two terminals on the zone valve that are for the power supply. These will be either labeled “power” or “hot.” Next, identify the two terminals on the zone valve that are for the signal. These will be either labeled “signal” or “return.” Finally, set your multimeter to measure voltage and touch the black probe to the terminal on the zone valve that is for the power supply and touch the red probe to the terminal on the zone valve that is for the signal. If there is voltage present, you will see a reading on your multimeter.

How Do I Know If My Zone Valve Is Not Working?

If your zone valve is not working, you will likely not be able to get water to flow through the pipes in that zone. To test this, try opening the nearest faucet in the zone that isn’t working. If no water comes out, then your zone valve is likely not working.


To Summarize

To check if a honeywell zone valve is working, one can use a voltmeter to measure the voltage across the two terminals of the solenoid coil. If there is no voltage, then the coil is open and the valve is not working.

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