I have a Bryant package unit that clicks when I put in the fuses. It is not a loud click that you would expect with a gas valve however. The light on the furnace control is flashing 6 times.

Check gas valve is not on pilot only check air filter is clean check connections to gas valve .

You need to check the solinoids on the gas vale. They might work to start but after they heat up some they possibly could break down and shut off. There are 2 coils on the valve. When you first start the dryer you should head a distinctive loud click noise. that is the primary coil opening the valve. When that happens you should also see the glow bar lighting. after the bar lights you should hear one more loud click. Thats the heat sensor opening and allowing the other coil to open to allow gas to flow and ignite. If you do not hear the first click when you start the dryer, look in the back for a small white rectangular fuse with 2 small wires on it. (they may be blue in color) That is a thermal fuse. Use a ohm meter to check if it is pen. If it is replace it.If you heard the first click and the glow bar starts to light but nothing else happens, you eed to check the heat sensor. It is connected to the flame baffle at the end of the gas valve. It will have 2 wires on it. One white and one blue I belive. It is attached by 1 screw. ( 1/4") You will need to check that out with a meter also. If it checks good reinstall it. You will then want to ohm out both coils. Only one may be bad but I recomend you replace the both of them. You will also want to make sure that your vent is not clogged up. That too can cause the dryer to short cycle. Hope this will help you.

I would suspect that it is not the valve making the noise. I would bet it is the thermal expansion of the metal that you are hearing. Other than that, I have seen cases where there is a flow control valve, and depending on its operation, when it opens or closes on spring power it will over shoot and make a loud clicking noise as the clutch overshoots. This will usually only be about 2-4 clicks though, and around pool equipment I doubt you would hear much of it. I would bet more on the thermal expansion. Kind of like the clicking noise you will hear after you have parked your car and the engine is cooling down.

Check panel for Troubleshooting information- sounds like gas issue or igniter issue

do you hear 3 clicks when you start it up,these clicks are the gas valves opening to supply the unit with gas for operation,if no clicks are heard it can be the thermal fuse is open,if only 1 or 2 clicks check continuity of the main and secondary gas valve coils as they can open up or get weak from heat during operation,usually just replace both coils on the gas valve as they are inexpensive one has 3 connections and the other has only 2 connections,but first bypass the thermal fuse with a jumper wire (for testing only) then replace the gas valve coils next,unplug both coil connections then remove 2 screws holding the valves to the valve and replace and reverse dis-assembly procedure

I would say on a unit that old it is probably just the gas valve opening and closing and as long as it's functioning I would not worry about it. Thank you.

Hi, normally when you turn the gas off at the flex line valve and leave it off for awhile, the gas has to clear the gas valve and lines up to the pilot. Purge its self of air before it will light again. It will take the electronic ignition several clicks and more before there is enough gas to light the pilot and then open the main gas valve to fire the burners. Tell me, what kind of gas furnace is this when you speak of water? you say the site glass was full and you had to drain it and then the ignitor kept on clicking when it normally only took one click to light it. Please let me know the style as in a split system, a package unit, all in one, or what you have. I will wait to hear back from you. If the pilot does not light right away, then yes let it continue to click and see if it will light. On a heater with the electronic ignition control module on it or a circuit board, this is what tells the pilot coil to energize to light the pilot. It will send power to the pilot coil to open and let gas through to light and same for the main gas valve, will get a signal to open when the pilot is on. It will not open unless the pilot is lite for saftey. I will wait for you're responce.
Shastalaker7

open the top of your unit so that you can see into the burner box
what your looking for should be an orange wire that leeads up to a metal rod
that metal rod should be in the way of the flame when unit is on
this is your flame ground,,, or more commonly known as the flame sensor,,, take this out and goive it a good brush with some steel wool
and reassemble,,
this should clear up you problem

It sounds like you might have a spark igniter on the unit that is being told to relight the burners. This is probably the tstat as this is the only control that "tells" the unit to come on. There isn't anything else internally that will cause this problem. Replace your tstat and I bet this solves your problem.

If your unit has a thermo-coupling this is most likely the issue This little sensor sends a milli-voltage to the gas valve telling it to keep sending gas for the pilot since its lit and all is good. They wear out and the gas valve thinks the flame has gone out (whick is hasnt) and kills the gas flow.