Lennox Hearth 1900HT-M operation manual Troubleshooting

Page 19

TROUBLESHOOTING

SMOKES OUT FUEL DOOR WHEN OPEN (see ‘)

1.The primary air control is closed.

2.The chimney is too cool. Set the primary air control on "HIGH" for a few minutes before opening the fuel door.

3.Excess creosote will not only restrict your draft but it will create a risk of a creosote fire. Strictly adhere to mainte- nance requirements as outlined in this manual. If excess creosote has built up on the inside of the firebox sides and door, burn a small hot fire at intervals that are more frequent with air control on HIGH for a few minutes.

4.Deposits may have built up in the chimney and are re- stricting the draft, or the spark arrester on top of the chimney may be plugged.

5.Chimney diameter too large or too small to provide ade- quate draft.

6.The house is too airtight (usually takes 20 to 30 minutes for problem to appear as stove lowers air pressure in house). Crack a window open or provide an outside source of air near stove.

7.Insufficient vertical height to chimney to achieve ade- quate draft.

DOES NOT PRODUCE ENOUGH HEAT (‘)

1.Using green or insufficiently cured wood.

2.Excessive draft.

3.High ceilings (heat rises quickly, but can be recirculated by a well-placed ceiling fan with a winter/summer switch).

4.The area to heat is too large (square foot heating esti- mates are based on "average" climates and home de- sign).

5.There is an obstruction in the chimney.

6.The chimney or chimney cap is restricted by creosote preventing enough draw to sustain a "high" heat output rate.

DOES NOT MAINTAIN A FIRE (‘)

1.Soft wood does not burn as long or as well as seasoned hardwood resulting in a short burn time.

2.Wood size too small. Burns at too rapid a rate.

3.The gasket seal on the fuel door, ash drawer or glass is leaking air. Repair or replace it if necessary.

4.Excessive Draft.

5.There may be an obstruction in the chimney.

BACKPUFFING (‘)

1.Downdraft in the chimney (a special wind cap may be needed).

2.The house is too air tight (ventilation is needed).

3.Insufficient vertical height to chimney to achieve ade- quate draft.

ODORS

1.Creosote accumulation in firebox (brush out on next cleaning).

2.Chimney downdraft when stove is not operating (close the primary air control).

3.Paint curing on first several burns.

DIRTY GLASS (‘)

1.Poor draft conditions.

2.Long burn periods at low draft settings.

3.Burning wet, pitchy or spongy wood.

4.Poorly arranged logs (too close to glass).

‘Draft problems; if installing into a larger flue, it may be necessary to use a full length liner to achieve ade- quate draft for the appliance. A draft gauge should read a minimum of .05" w.c. (inches water column) not to exceed .07" w.c. for optimum performance (See Draft Requirements on page 10).

OVERFIRING DAMAGE

If the heater or chimney connector glows, you are overfir- ing. Other symptoms may include: Cracking, warping or burning out of components, gold doors may turn color, stove glass may develop a haze, which will not come off with cleaning.

Overfiring of a stove is a condition where excessive tem- peratures are reached, beyond the design capabilities of the appliance. The damage that occurs from overfiring is not covered under the manufacturer’s limited warranty.

The following are a few conditions that should be evalu- ated and (corrected if necessary) if an overfiring condi- tion is suspected:

Overfiring Caused From Improper Installation - Ensure that all installation requirements have been met as outlined in the installation 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.). Excessive draft (above .07 " W.C.) will allow too much combustion air to be pulled in which results in hotter burns. Too little draft (below .05 " W.C.) will not allow enough combustion air delivery to maintain a fire (this may result in improper operation of appliance, i.e. wont maintain fire unless fuel door or ash drawer is left open. See below, Overfiring Caused From Improper Operation).

Overfiring Caused From Improper Operation - Operate this appliance only as outlined in this manual. Never burn the appliance with the fuel door or ash drawer open or ajar. Do not operate this stove with the Air Control in the "open" position (pulled out) for extended periods. This wastes fuel and can cause dangerous overfiring conditions. NEVER leave the stove unattended on high settings.

Overfiring Caused From Improper Maintenance - Strictly adhere to all maintenance requirements at frequent inter- vals as prescribed in this manual including cleaning of flue and stove. Should the fuel door, ash drawer or glass gas- kets become 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 (ask your authorized dealer what are approved fuels for your area). Do not burn garbage, particleboard scraps, or pressed logs using bonding agents because they can produce conditions that will deteriorate metal. Do not over- load or use kindling wood or mill ends as primary fuel as this may cause overfiring.

PAGE 19

Image 19
Contents 775002M, Rev. F 11/03 Installation and Operation ManualImportant Warnings Table of Contents Smoke Detectors Planning Your InstallationStandard Parallel Hearth PAD Shown Floor ProtectionUSA Requirements Canada RequirementsProtected Wall Clearance Combustible Wall ClearanceUnited States Requirements Residential StandardSecuring the Stove to Floor InstallationManufactured Mobile Home Requirements Outside Combustion AIRBaffle Plates Installing Marble AccentsGrounding Stove Remove ASH Drawer ClipChimney Inspection Acceptable Connector Pipe for INSTALLA- TionsDraft Requirements Chimney Height RequirementsResidential Standard Manufactured Mobile Home Standard UsingDiameter Type L-Vent Connector Pipe Dard Using 6 Diameter Type L-Vent Connector PipeMethod a inch 305mm Clearance to Combustible Wall Mem Care and Operation Product Features and ControlsProvide Adequate AIR for Combustion GlassFirst Fire BREAK-IN PeriodFuel Maintenance Reinstall Baffle Plates Removing Baffle Plates for CleaningCleaning Blower Intake Troubleshooting Door Parts Replacement Parts for Model 1900HT-MDescription CAT. noComponent Diagrams Model 1900HT-M Back Cover Plate BCP-19 Catalog # Model DescriptionOutside Air Floor Duct OAFD-S Blower Kit BK-100Up to 508 Sq. M Yes, U.S.A. installApproximate Up to ~2000 Sq. FtSAFETY/LISTING Label EPA Label Ownership Records Service and Maintenance LOGWest Taft Avenue Orange, CA