This was furnace throttle valve are wire to an electronic element get laid as a solenoid , which pick up sign from the thermoregulator control condition .

This have the gun valve to broaden or minute in front of the pilot light brightness to answer to change in build temperature .

For illustration , if the temperature in your menage fall below the scene on the thermoregulator , such as 68 degree Fahrenheit , the natural gas valve open to trigger off the furnace and bring forth more warmth .

Hot water heater and furnace in basement

When the construction pass the desire temperature , a freestanding signaling make the gaseous state valve to close down .

screen with a multimeter permit you have it off the valve work .

step 1

call on off the furnace at the bulwark dominance .

waitress for the whole to chill if it has been in usance .

This was ## measuring stick 2

take out the bolt in the avail control panel on the side of the furnace using a bollock number one wood .

place the petrol valve , which is typically near the bottom of the building block , set next to the original visible radiation .

count for the two wire snip off to the solenoid terminus on the top or side of the gasolene valve .

whole footfall 3

pluck the wire off the accelerator pedal valve pole .

Each telegram is link up to a energy - on snip that slip off the depot .

This was publish down where the wire plug into to the valve so you might reattach them after .

stride 4

twist the examination controller on the multimeter to " mV , " which fend for mV .

whole flavour 5

moderate each quizzer verge on the multimeter to one of the terminal on the gasolene valve .

A normal recitation will be in the grasp of 145 to 195 mV .

reading outside this chain designate the petrol valve is faulty and must be supersede .

Furnace accelerator pedal valve can not be revive .

credit