Unit 58 Troubleshooting Oil Heating Systems Questions And Answers 100% Verified A+ Guaranteed

58-13) List some types of oil pump problems. {Ans: Seized oil pump Oil pump pressure not correct Bypass plug incorrectly applied Leaky shutoff}58-11) What safety precaution should be followed when working on a furnace with a tripped primary control? {Ans: Check the combustion chamber for accumulated oil. If oil is in the combustion chamber it must be cleaned out before firing the furnace.}58-2) List the general types of oil furnace problems. {Ans: oil burner motor problems oil pump problems nozzle problems ignition system problems primary control problems}58-17) According to Table 58.1, what are some causes of a short cycling indoor blower? {Ans: Input too low Blower CFM too high Fan control defective}58-4) How can a defective ignition transformer be diagnosed? {Ans: Check the output with a special high voltage probe or measure its resistance with an ohmmeter. An infinite resistance reading indicates an open winding.}58-9) What causes soot buildup? {Ans: Incomplete combustion from improper installation or poor maintenance.}