If Jon-ë Goes Out From Overfilling
If Jon-ë is overfilled, the excess fluid in the base will expand upon getting hot and wet the heating element. The heating action of the heating element will stop immediately with no danger of fire or flame. If you overfill, remove the heating element and shake out the excess fluid from the base. Before replacing the heating element, place heating element in a clean ashtray and ignite. Let excess fluid burn off and allow heating element to cool off before replacing heating element and igniting in usual way.
Sometimes the warmer is lit but will not stay lit for more than a short period of time, or goes out after being placed in the bag. If it appears not to be overfilled and overfill instructions have been tested, it is possible that the particular warmer might need a bit more air. A few holes applied to the bag will allow for increased air circulation.
To Remove Carbon From Heating Element
If black carbon appears on heating element, proper lighting procedures were not followed and it indicates the element was lit in a draft or the Handwarmer was tilted and handled while lighting.
To burn off carbon, light Handwarmer correctly. Put cover back on and let Handwarmer stand without bag in draft-free room and do not handle. Place the Handwarmer where an unsuspecting person or child will not touch it as the Handwarmer will be extremely HOT!! The extreme heat will consume the carbon by the time the Handwarmer goes out.
Do not use any automotive gasoline as it is explosive! It will destroy the heating element too. Use Jon-ë Handwarmer Fluid for best results. Cigarette light fluid may also be used. Do not use other petroleum products. Do not use Jon-ë Fluid on charcoal or charcoal fire. NOTE: USING FLUIDS OTHER THAN JON-E'S HANDWARMER FLUID MAY RESULT IN HANDWARMER SNUFFING OUT