Neptune Gas dryer burner will not continue to fire
Have a Neptune Gas dryer (4 yrs old) burner fires initially for about 1/2 min then will not re-fire to continue to heat, the drum only blows cold air. No blockage of the vent or noticeable issue.
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I feel you need a new igniter. It probably only works when first started You must realize that the igniter works overtime while the dryer is operating.
If the flame sensor is not returning a good signal, the gas valve is shut off as a safety measure. I surmise that in this situation, the igniter is programmed to fire for a time to flare off any accumulated gas from the initial attempt to fire up the burner.
Check for the following: adequate combustion air supply (make sure inlet vents are clear), proper exhaust venting, flame sensor properly positioned and not cracked or otherwise broken, burner holes are clean and not caked over with combustion deposits (if the flame is uneven and weak right where the flame sensor is located, it will be treated as a failed ignition).
In the worst case, the gas valve is defective and unable to detect the flame signal. It's also possible that a thermostat is sending an overheat signal, but that doesn't account for the igniter sparking a second time after the burner shuts off.
Sounds like the cross over between the burners are to tight. I would take a common screwdriver and open the slot just a little. Only other thing I am worried about is the gas pressure on the burner side. Needs to be set as per installation manual.
Could be a couple different things,Possibly a thermostat or high limit that is kicking out too soon,also has a flame sensor next to the burner that can come and go.if you have a toggle switch or pushbutton switch you can unplug the unit take the two wires off the flame sensor (black box about the size of a cigarette pack on the left of the burner)plug them into the switch start the dryer Turn the switch on till the igniter glows bright,turn the switch off and the burner will light if it stays lit at least till it gets to temp replace the flame sensor.(It won't cycle with out flipping the switch each time)
replace coil kit no 279834.coils will be found on top of burner, unplug wires, 2 screws remove bracket,easy fix part~ $20 .Hope this helps ,please rate my solution :)
I have a Whirlpool dryer with LP gas, 7 1/2 years old. It will fire up once or twice after started then the next time it is supposed to fire it will make a buzzing sound. No heat. It will not produce heat after this until it sits for awhile then the same thing, will fire once or twice then no more. I replaced the ignitor and this did not solve the problem although it did have a consistent firing for about 3 minutes immediately after I replaced the part. then it started buzzing again and would not fire anymore. The propane line doesn't appear to be the problem either since it will work initially. Also the gas water heater in the house works fine.
I am curious as if you can tell if the burners are firing up. On the Neptune models there is a relay switch that has to function to tell the gas to go into the burner ports at the right time. the same relay switch also corresponds with a electric ignitor to ignite.
Second, the burners and its components must be rated for Natural gas or propane, which ever you are using.
Third, burner ports also has to be clear of debris, scaling etc.
Some have thermocouplers that go out. Some have burner blow back sensors that get worn out or dirty. Those need to be cleaned off by a technician.
It is strongly recommended that a service technician perform this service.
Back in the old days we could have used special tools to clean out each port one at a time, but now they require a bit more skill than old timers like me can do.
Make sure however your dryer is plugged into a properly grounded outlet also.
If you find that it is grounded down, and the gas components are correct, and still doesn't work, I strongly urge you to contact your local appliance repair store for technician repair to be performed.
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