Our nailer battery is fine and when you press the fire button the gun makes a faint thud as if trying to fire but no go. The gas is full. What should I look for

Have all the nails been cleared out of the tool where they were jammed? If not take the fuel cell out of the tool, and remove the battery before working on it. If still persists come back to this website for further help.

Fan running when trigger pressed is normal however to make it fire you need to press on the work probe first and the fan should start running, at this point the gas should be injected and pressing the trigger should create the spark to fire the gun, if all works as above but the gun won't fire check the gas, the metering valve on the can should have a yellow ring and when pressing the can nozzle on a hard surface, gas should be released, if not the can either has (a) insufficient gas, (b) the nozzle is not correctly fitted (c) the metering valve is faulty, if the can emits gas the gun will need to be checked for spark and the seals will need checking

Check the date of the bottom of the gas. With the gas removed when you fire it you should hear a faint spark sound from the top. If gas is in date try putting it in your pocket for 10 minutes to warm it up. Open the front and make sure the piston is pushed all the way up into the machine.

Try a different gas cartridge and make sure the top of the cartridge is snapped tightly onto the cartridge body.

Give it a thorough cleaning.. if it still does not fire you might have to replace the spark plug.

Start with the basics:
First check that the butane (or whatever gas is used) canister is full. If empty, put in a new one.

Second check to make sure your battery is fully charged to be able to fire the spark to work the nail gun. If not get the battery charged and/or replaced as needed.

Third make sure all of the safeties are working properly and that you have them engaged to the piece of wood you are nailing when you try the trigger.

If beyond that it does not work it could be a bad trigger, a bad safety switch, or even a bad connection from the battery to the device.

Hi,
Probably needs cleaning. You`ll need two new o`rings.

have you activated the fuel cell by pressing the black nozzle down onto the cylinder?

The NR83a has an adjustment just below the triggering plunger. It is a 6mm hex head bolt with a locking nut. Loosen the nut and adjust screw out several turns and re-test. Make adjustment as necessary. I have seen many of these gun without the locking nut which allows the bolt the adjust itself all the way down. AS parts wear this screw needs to be adjusted. The pushing lever and the plunger are wearing smaller/shorter, that is unless the locking nut was missing. Remove gun from air supply for safety when making adjustments. Good Luck an email if you have other qustion about this gun.

Does the fan run and the light blink ont he nailer? I have one that I just bought. I put in the wrong type of nails and got one stuck. I had to take the front apart to clear it and now the damm thing wont fire. The green light blinks and the gas cartridge is basically full, even the fan does run after I release the push lever, but no fire???

I wonder if yours is the same as mine did fire for a couple nails first just fine then got jammed...

I will try to charge the battery more.... MAybe like yours it needs a strong charge for the spark...
Russ