Williams 1403611, 3003612, 2203611, 2203612, 3003611 Troubleshooting, Symptom, Possible Cause

Page 22

Troubleshooting ... (cont.)

SYMPTOM

4, Furnace operates but turns "Off" before room

temperature is attained.

5.Furnace not producing sufficient heat.

6.Furnace operates but will not shut "Off" when room

temperature is attained.

7.Pilot outage problem.

8.Abnormal operation.

POSSIBLE CAUSE

A, Sensing bulb not located properly. (Bulb control model,)

B. Temperature dial out of

calibration. (Bulb control model.)

C. Thermostat location. (Wall thermostat model.)

D.Defective thermostat. (Wall thermostat model.)

A.Furnace may be too small for space being heated.

B.Furnace not burning at full rate.

A. Sensing bulb not located properly. (Bulb control model.)

B. Temperature dial out of calibration. (Bulb control model.)

C. Bulb or capillary broken. (Bulb control model.)

D. Thermostat wiring defec- tive. (Wall thermostat model.)

E. Thermostat location. (Wall thermostat model.)

EDefective thermostat. (Wall thermostat model.)

G.Dirt under valve seat or valve stuck open.

A.Pilot flame may be low or blowing (high) caus- ing safety to drop out.

A.Delayed ignition - pilot flame may be too low.

B.Expansion noise ticking.

CORRECTIVE ACTION

Check location of sensing bulb - should be attach- ed to back of control valve.

See valve manufacturer's instructions.

Check thermostat location - should not be in the path of warm air discharge from furnace, near a lamp, or above a "IIV. or stereo set.

Check thermostat calibration or replace.

Check heat loss calculations.

Check for low gas pressure (see 3B page 21). Check burner orifice.

Check location of sensing bulb - should be attach- ed to back of control valve.

See valve manufacturer's instruction.

Replace valve.

Thermostat lead wires may be shorted together caused by a nail or staple - check by removing ther- mostat leads from valve terminals.

Check thermostat location - if on an outside wall

or a hole in wall behind thermostat is causing cold air to contact thermostat - relocate.

Check thermostat calibration or replace.

Replace valve.

Adjust pilot flame. Check vent tube and air inlet tube (see 3A page 21). Be sure pilot lighting door is clos- ed. Pilot orifice or aerating hole may be plugged (check for spiders, webs or other organic material).

Adjust pilot flame.

Check installation - casing may be distorted by be- ing fastened to an uneven wall. Vent tube and air inlet tube may be in a bind with vent cap assembly

-be sure hole through wall is correct and parts fit without binding.

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Contents For USE with Liquefied Petroleum L.P GAS only Model NOSFor USE with Natural GAS only Model Number InformationContents Your WarrantyKIT Number Wall Thickness Optional AccessoriesIntroduction Basic Description 9304 Inches to 15 inches 9303 Inches to 24 inchesSafety Rules Unpack Your Furnace Installing Your Wall FurnaceHelpful Installation Information Basic MaterialsInterior Clearances Refer to Fig Locating Wall FurnaceModels 1403612, 1403622, 1403611 Find the Studs InstallationCUT Vent Opening GAS and Electrical Supply Openings Install Spacer PlateInstall the mounting spacer plate a Furnace MountingOperating Instructions Optional Blower InstallationInstall Vent CAP RightOrifice Sizes Gas Supply & PipingGAS Supp GAS PipingChecking the GAS Piping Thermostat InstallationGAS Connection Bodily Injury or DeathMounting the Thermostat Thermostat Connection at Gas ValveLuams JumperCabinet Installation Furnace Technical InformationType of GAS Manifold PRESSURE, IN. W.C Start-Up ProcedureAdjust Pilot Burner NaturalOperating Your Furnace Williams GAS Control Valve P322053 & P322054 Couple BurnerWilliams GAS Control Valve P295300A & P295301A Thermo Pilot Couple BurnerImportant Keep Burner and Control Compartment Clean Williams GAS Control Valve P121200 & P171600Williams GAS Control Valve P295200A & P295201A Maintenance How To Care For Your FurnaceBurner Flame Tubes not properly installed Furnace may be overrated Troubleshooting Gravity Direct Vent Wall FurnaceSymptom Possible Cause Not stay lit afterSymptom Troubleshooting ...Possible Cause Optional Blower Accessory USE only Manufactures Authorized PartsWilliams Direct Vent Gas-Fired Wall Furnace For Parts lISTING see USE only Manufacturers Authorized PartsModelnumber MFG.DATECODE ServiceFor Your Safety Williams Furnace Company Manufactured

3003612, 3003611, 2203612, 1403612, 2203611 specifications

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