TROUBLESHOOTING

OVERFIRING DAMAGE

If the heater or chimney connector glows, the appli- ance is overfiring. Other symptoms may include: Cracking, warping or burning out of components, cata- lytic combustor may deteriorate, gold doors may turn color, stove glass may develop a haze which will not come off with cleaning, firebox baffle plate (tunnel baf- fle) may warp, etc. Overfiring of a stove is a condition where excessive temperatures are reached, beyond the design capabilities of the appliance. The damage that occurs from overfiring is not covered under the manufacturers limited warranty. The following are a few conditions that should be evaluated and (cor- rected if necessary) if an overfiring condition is sus- pected:

Overfiring Caused From Improper Installation

The venting system must satisfy the draft Require- ments of the appliance. The appliance is merely one component of a larger system. The other equally im- portant component is the venting system, which is necessary for achieving the required flow of combus- tion air to the fire chamber and for safely removing unwanted combustion byproducts from the appliance. If the venting system’s design does not promote these ends, the system may not function properly, which may create performance problems as well as may be a safety hazard. To ensure that all installation re- quirements have been met as outlined in the installa- tion manual. The chimney should be clean and in good repair. A draft test should be performed to de- termine if the draft requirements of the appliance are being met. A draft gauge should read between .05 and

.07 inches water column (W.C.I.).

Excessive draft (above .07 W.C.I.) will allow too much combustion air to be pulled into the firebox, which re- sults in hotter burns. Too little draft (below .05 W.C.I.) will not allow enough combustion air delivery to main- tain a fire well or cause performance problems such as smoking (this may result in improper operation of appliance, i.e. will not maintain fire well unless cata- lytic bypass is left open, or with fuel door left open (see below - Overfiring Caused From Improper Opera-

tion).

Overfiring Caused From Improper Operation

Never burn the appliance with the fuel door open or ajar, or the ash drawer open. Never burn the stove with the bypass handle in the open position once the fire has been established or the air control in the "high" position for extended periods.

Overfiring Caused From Improper Maintenance Should the fuel door, glass or ash drawer gaskets be- come worn or damaged, they should be replaced.

Overfiring Caused From Improper Fuel

This appliance is approved for use with natural dry well seasoned wood only (consult your dealer for ap- proved fuels in your area). Do not burn garbage, par- ticleboard scraps, or pressed logs using bonding agents because they can produce conditions that will deteriorate metal. Green or uncured wood does not work well as fuel, and can cause increased creosote buildups. Do not overload or use kindling wood or mill ends as primary fuel.

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Lennox Hearth 1003C operation manual Overfiring Damage, Overfiring Caused From Improper Installation