UNIT 58 REVIEW QUESTIONS ANSWER KEY GO BACK TO INDEX
58-1) What is indicated by a frothy stream of oil in the oil supply line?
58-2) List the general types of oil furnace problems.
oil burner motor problems
58-3) How can the cause of a locked burner motor be determined?
58-4) How can a defective ignition transformer be diagnosed?
58-5) What are some common types of ignition system problems other than a
defective ignition transformer?
58-6) What are the symptoms of a defective oil pump drive coupling?
58-7) What are the symptoms of an oil pump with a leaky shutoff?
58-8) What resistance readings indicate a good cad cell?
58-9) What causes soot buildup?
58-10) What is puff-back?
58-11) What safety precaution should be followed when working on a furnace with a
tripped primary control?
58-12) According to Table 58.1, what can cause carbon deposits on the refractory?
58-13) List some types of oil pump problems.
Seized oil pump
58-14) When should an oil pump internal bypass plug be removed?
58-15) How can a leak in the fuel suction line cause no oil to be delivered to the
pump?
58-16) What two methods are used to control the indoor fan?
58-17) According to Table 58.1, what are some causes of a short cycling indoor
blower?
58-18) Provide a list of preliminary checks when troubleshooting oil furnaces.
Check the Fuel – Start by checking to see if there is oil in the tank and if
the oil is clean.
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58-19) What unique problems can arise in oil furnaces because oil is a liquid fuel?
58-20) What two manual resets do all oil burners have?