Clicking noise from gas valve

[jimbofish]

Recently ,we noticed an odd noice coming from the furnace when running. Traced it down to the gas valve. When it's open, there is a rapid clicking sound from the valve... not quite a buzz, but rapid distinc clicks. Not really loud, but you could notice it above the normal furnace noise.
It did this for one cycle, then stopped, then repeated for a few cycles. While it was off, I rotated the on/off knob on the gas valve a few times. It seemed to have solved the problem. A week or so later, the noise was back for one cycle that we noticed, then gone.
Today, the furnace didn't come on. The Diagnostic light indicated 'pressure switch stuck open'. I wiggled the vacuum hoses, the light went out and the furnace started normally.
My question is why was the valve clicking and is it a sign of eminent failure? IS the stuck switch related to this in any way.

[Hube]

Could be bad contacts, clean up . if that don't help, then replace.. Hube

[jimbofish]

What about the valve clicking?

[Hube]

It COULD be due to a "loose" magnetic, or diaphragm valve within the actual valve,(valve seat) usually this is no cause for alarm, but its better to replace it in the near future.

[jimbofish]

Ok, thanks.

[macfudpucker]

Jimbo, what make furnace do you have?#10;I am having the same problem, replaced my gas valve because the old one went bad, now the new valve is doing the same thing.#10;Macfudpucker#10;#10;#10;

quote:Originally posted by jimbofish#10;
Recently ,we noticed an odd noice coming from the furnace when running. Traced it down to the gas valve. When it's open, there is a rapid clicking sound from the valve... not quite a buzz, but rapid distinc clicks. Not really loud, but you could notice it above the normal furnace noise.#10;It did this for one cycle, then stopped, then repeated for a few cycles. While it was off, I rotated the on/off knob on the gas valve a few times. It seemed to have solved the problem. A week or so later, the noise was back for one cycle that we noticed, then gone. #10;Today, the furnace didn't come on. The Diagnostic light indicated 'pressure switch stuck open'. I wiggled the vacuum hoses, the light went out and the furnace started normally.#10;My question is why was the valve clicking and is it a sign of eminent failure? IS the stuck switch related to this in any way.#10;