Évaluations - 2, GPA: 4
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Is ignition cable firmly plugged into module? Is green ground wire firmly attached to mounting screw and GND terminal on module? Is pilot burner ignition cable in good condition (not brittle, burnt, or cracked)? Ensure ground strap is the closest metal to the igniter/sensor rod (electrode) to prevent the spark from shorting out to other metal parts (pilot screen, pilot shield, etc.). Ignition cable must not touch metal surfaces or current carrying wires. Is there a 1/8” gap between ground strap and electrode? Are the ceramic insulators surrounding the electrode in good condition (not cracked or broken)? Is there excessive draft conditions that may cause pilot burner ignition problems? YES YES YES YES YES NO NO NO NO NO Turn on power supply Securely connect cable and/or ground wire. Replace pilot burner and/or ground wire. Carefully bend downwards top of ground strap to achieve 1/8” spark gap. Replace pilot burner. Replace ignition module. Correct draft problems in a manner that would ensure adequate combustion and ventilation air and proper pilot burner performance. 26 CHART 2 S8600 (NATURAL GAS AND LP GAS) INTERMITTENT PILOT SYSTEM TROUBLESHOOTING PILOT BURNER LIGHTS BUT MAIN BURNER DOES NOT LIGHT Does the pilot flame cover 3/8” to 1/2” of igniter/sensor rod? Does spark stay on for more than 30 seconds after the pilot is “proven” (lit)? Is the pilot burner ignition cable in good condition (not brittle, burnt, or cracked)? Are the ceramic insulators surrounding the igniter/sensor rod in good condition (not broken or cracked)? Correct the situation by consulting the installation or user’s manual on how to adjust pilot flame. Is voltage (24 Vac) across terminals MV & MV/PV? Are the wires securely attached to the main valve operator on the gas control and to terminals MV & MV/PV on ignition module? Replace ignition module. Replace main gas valve. Replace pilot burner. Replace pilot burner. Attach wires firmly. YES YES YES NO NO NO NO NO NO YES Clean rod or replace pilot burner if necessary. Are the igniter/sensor rod in good NO condition (not worn, corroded, sooted or damaged)? YES Replace ignition module. 27 MODEL HW LIMITED WARRANTY A. O. Smith Corporation, the warrantor, extends the following LIMITED WARRANTY to the owner of this water heater. 1. If within FIVE years after initial installation of this water heater, a heat exchanger, coil or gas burner shall prove upon examination by the warrantor to be defective in material or workmanship, the warrantor, at his option will exchange or repair such part or portion. a. This warranty is extended to the owner for all other parts or portion during the FIRST year following initial installation of this water heater. b. The warranty on the repair or replacement of the part or portion will be limited to the unexpired term of the original warranty. 2. CONDITIONS AND EXCEPTIONS This warranty shall apply only when the water heater is installed in accordance with local plumbing and building codes, ordinances and regulations, the printed instructions provided with it and good industry practices. In addition, a temperature and pressure relief valve, certified by A.G.A. and approved by the American Society of Mechanical Engineers, must have been installed. a. This warranty shall apply only when the heater is: (1) used at temperatures not exceeding the maximum calibrated setting of its thermostat; (2) used at water pressure not exceeding the working pressure shown on the heater; (3) filled with potable water, free to circulate at all times and with the tank free of damaging water sediment or scale deposits; (4) used in a non-corrosive and non-contaminated atmosphere; (5) in its original installation location; (6) in the United States, its territories or possessions, and Canada; (7) sized in accordance with proper sizing techniques for commercial and/or residential water heaters; (8) bearing a rating plate which has not been altered, defaced or removed, except as required by the warrantor; (9) operated with properly installed dirt leg; (10) fired with the fuel for which it was factory built; (11) fired at the factory rated input; b. Any accident to the water heater, any misuse, abuse (including freezing) or alteration of it, any operation of it in a modified form, or any attempt to repair tank leaks will void this warranty. c. This warranty is void if a device acting as a backflow prevention device (check valves etc.) is installed in the cold water supply the heater is connected to, unless an effective method of controlling thermal expansion is also installed at the heater(s) and operational at all times. The relief valve installed on the heater is not an acceptable method. 3. SERVICE AND REPAIR EXPENSES Under the limited warranty the warrantor will provide only a replacement water heater or part thereof. The owner is responsible for all other costs. Such costs may include but are not limited to: a. Labor charges for service removal, repair or reinstallation of the water heat...
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