chatter from gas valve

[hawgwildtours]

my neighbor has a gas furnance that is making a chattering noise from the gas valve after the glow igniter shuts down..he called and said the flame was just coming out like a lighter..i went over and it lit ok but after the glow igniter went out it makes a rattle noise from inside the plastic housing around the gas valve..the valve is a honeywell and on the front it must have a valve inside this plastic housing..i was wondering if this part of the valve is replacebale or do u have to repalce the whole valve..thanks in advance

[ACtechGUY]

Modern gas valves are NOT repairable. (it's a safety thing) .

Gas valves are usually pretty reliable, unless they are honeywell smartvalves. Smartvalves have electronics in them that can and do fail.

If your valve has 2 connectors on it , one with 2 little blue wires and one with 4 wires, then you have a smartvalve that is malfunctioning.

If not, Check that you have a steady 24 volts to the 2 terminals on the valve when the valve is operating. It could be a loose connection outside the valve.