Exam (elaborations)
ASE T7 Questions And Answers With Verified Solutions (GRADED A+)
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ASE T7 Questions And Answers With Verified Solutions (GRADED A+)
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ASE T7 Questions And Answers WithVerified Solutions (GRADED A+)
High side pressure - ANSWER✔✔150-180
Low side pressure - ANSWER✔✔20-40
Squealing - ANSWER✔✔Belts
Hammering - ANSWER✔✔Restriction in the water jacket
Hissing - ANSWER✔✔Leak in the coolant system above the coolant level
Clicking or buzzing from compressor - ANSWER✔✔System over charged
Knocking - ANSWER✔✔Internal compressor damage, loose bolts
One blower speed doesn't work - ANSWER✔✔Bad resistor
High speed fan doesn't work - ANSWER✔✔High speed, fuse, or relay
Sight glass clear - ANSWER✔✔System OK overcharge no refrigerant
Sightglass has foam bubbles or mist - ANSWER✔✔Low on refrigerant ,air may be
in the system
Sight glass streaked - ANSWER✔✔Low refrigerant or from Oil
Sightglass clouded - ANSWER✔✔Desiccant breakdown contaminated system
Both high side and low side or low - ANSWER✔✔Low refrigerant charge or
possible leak, slipping clutch or drive belt. expansion valve. Stuck closed,
restriction on high side.
High side normal, low side normal - ANSWER✔✔Air or moisture in the system,
blend door stuck open, defective or misadjusted thermostatic switch, defective
pressure cycling switch
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