Assessments - 2, GPA: 4 ( )

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You may blow through a drinking straw if compressed air is not available. Figure 25 - Pilot Inlet Air Hole CLEANING HEATER CABINET Air Passageways Use a vacuum cleaner or pressurized air to clean. Exterior Use a soft cloth dampened with a mild soap and water mixture. Wipe the cabinet to remove dust. 13 TROUBLESHOOTING Note : All troubleshooting items are listed in order of operation. WARNING: Only a qualified service person should service and repair heater. CAUTION: Never use a wire, needle, or similar object to clean ODS/pilot. This can damage ODS/pilot unit. OBSERVED PROBLEM POSSIBLE CAUSE REMEDY When ignitor button is pressed in, there is no spark at ODS/pilot. 1. Ignitor electrode is positioned wrong. 2. Ignitor electrode is broken. 3. Ignitor electrode is not connected to ignitor cable. 4. Ignitor cable pinched or wet. 5. Broken ignitor cable. 6. Bad piezo ignitor. 1. Replace ignitor. 2. Replace ignitor. 3. Reconnect ignitor cable. 4. Free ignitor cable if pinched by any metal or tubing. Keep ignitor cable dry. 5. Replace ignitor cable. 6. Replace piezo ignitor. When ignitor button is pressed in, 1. Gas supply is turned off or1. Turn on gas supply of openthere is a spark at ODS/pilot but no equipment shutoff valve is closed. equipment shutoff valve. ignition. 2. Control knob not fully pressed in2. Fully press in control knob while pressing ignitor button. while pressing ignitor button. 3. Air in gas lines when installed. 3. Continue holding down control knob. Repeat igniting operation until air is removed. 4. ODS/pilot is clogged. 4. Clean ODS/pilot (see Cleaning and Maintenance. Page 13) or replace ODS/pilot assembly 5. Gas regulator setting is not correct. 5. Replace gas regulator. 6. Control knob not in PILOT position. 6. Turn control knob to pilot position. 7. Depleted gas supply. 7. Contact local propane/LP gas campany. ODS/pilot lights but flame goes out when control knob is released. 1. Control knob is not fully pressed in. 2. Control knob is not pressed in long enough. 3. Equipment shutoff valve is not fully open. 4. Thermocouple connection loose at control valve. 5 Pilot flame is not touching thermocouple. This allows thermocouple to cool, causing pilot flame to go out. This problem could be caused by one or both of the following: A) Low gas pressure B) Dirty or partially clogged ODS/pilot 6. Thermocouple damaged. 7. Control valve damaged. 1. Press in control knob fully. 2. After ODS/pilot lights, keep control knob pressed in 30 seconds. 3. Fully open equipment shutoff valve. 4. Hand tighten until snug, then tighten 1/4 turn more. 5. A) Contact local propane/LP gas company. B) Clean ODS/pilot (see Cleaning and Maintenance. Page 13) or replace ODS/pilot assembly. 6. Replace thermocouple. 7. Replace control valve. 14 TROUBLESHOOTING Continued OBSERVED PROBLEM POSSIBLE CAUSE REMEDY Burner(s)does not light after 1. Burner orifice is clogged. 1. Clean burner orifice (see CleaningODS/pilot is lit. and Maintenance, page 13) or replace burner orifice. 2. Burner orifice diameter is too small 2. Replace burner orifice. 3. Inlet gas pressure is too low. 3. Contact local Propane/LP gas company. Delayed ignition of burner(s). 1. Manifold pressure is too low. 1. Contact local Propane/LP gas company. 2. Burner orifice is clogged. 2. Clean burner (see Cleaning and Maintenance, page 13) or replace burner orifice. Burner backfiring during combustion. 1. Burner orifice is clogged or1. Clean burner orifice (see Cleaning damaged. and Maintenance, page 13) or replace. 2. Burner damaged. 2. Replace burner. 3. Gas regulator defective. 3. Replace gas regulator. Yellow flame during burner 1. Not enough air. 1. Check burner for dirt and debris. Ifcombustion. found, clean burner (see Cleaning and Maintenance, Page 13). 2. Gas regulator defective. 2. Replace gas regulator. 3. Inlet gas pressure is too low. 3. Contact local propane/LP gas company. Slight smoke or odor during initial operation. 1. Residues from manufacturing processes. 1. Problem will stop after a few hours of operation. Heater produces a whistling noise when burner is lit. 1. Turning control knob to HI position when burner is cold. 2. Air in gas line. 3. Air passageways on heater blocked. 4. Dirty or partially clogged burner orifice. 1. Turn control knob to LO position and let warm up for a minute. 2. Operate burner until air is removed from line. Have gas line checked by local Propane/LP gas company. 3. Observe minimum installation clearances (Figure 4, p7). 4. Clean burner (see Cleaning and maintenance, Page13) or replace burner orifice. Heater produces a clicking/ticking noise just after burner is lit or shut off. 1. Metal expanding while heating or contracting while cooling. 1. This is common with most heaters. If noise is excessive, contact qualified service person White powder residue forming within burner box or on adjacent walls or furniture. 1. When heated, vapors from furniture polish, wax, carpet cleaners, etc. turn into white powder residue. ...

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