How do you troubleshoot a Honeywell Smart valve?

How do you troubleshoot a Honeywell Smart valve?

How to Troubleshoot a Honeywell SmartValve

1. Turn off the gas supply.
2. Makes sure the element is good.
3. Make sure the switch or knob on the SmartValve is on.
4. Make sure the call to heat function on the appliance is compatible with the SmartValve.
5. Check the line power, transformer, switches, thermostat and wiring.

What is a smart valve on a furnace?

The Smart Valve system uses a 24 VAC powered hot surface pilot gas igniter to ignite the pilot gas. The main gas is ignited in both instances by a pilot gas burner. The Smart Valve system is self-contained, thus eliminating the need for a separately mounted ignition source, usually in the furnace or boiler vestibule.

What causes a gas valve to go bad?

The valve itself may have simply worn out or may be damaged due to basement seepage or submersion. Alternately, one of the electronic gas ignition components or a glitch in the safety circuit may be to blame. If your furnace has a standing pilot light, the thermocouple could be worn out.

How do I know if my furnace gas valve is bad?

If 24 volts is coming from the board to the gas valve terminals and you don’t hear that little clicking noise the internal valve makes, you could have a bad gas valve. To double-check, take the leads off to the gas valve and check there.

How do I know if my gas valve is bad on my furnace?

Next, the gas valve opens.

What makes a smart valve smart?

While there is nothing simple about a Smart Valve, it’s not complicated. The valve has a circuit board that can control a pilot valve, it energizes an HSI, it has flame rectification, it energizes the main valve, it does it’s own diagnostics, and can be used to energize another 24 or 120v circuit.

How do you test a gas control valve?

How to Check the Furnace Gas Valve With a Multimeter

1. Turn off the furnace at the wall control.
2. Take out the bolts in the service panel on the side of the furnace using a nut driver.
3. Pull the wires off the gas valve terminals.
4. Turn the test control on the multimeter to “mV,” which stands for millivolt.

What does gas control valve failure mean?

On a gas water heater, the gas control valve contains the thermostat and pilot light controls. Water heater problems that may be caused by the gas control valve include a faulty hot water heater thermostat, faulty gas valve, pilot light that won’t light, and tripped heat limiter.