Practice question
A bus evaporator that frequently freezes over (ices up) and blocks airflow most likely has a problem with the:
- Compressor mounting bracket
- Refrigerant identifier
- Condenser fan
- Evaporator temperature/thermostatic control or cycling control
Answer: D — Evaporator temperature/thermostatic control or cycling control
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Practice more: ASE S7 Air Conditioning Systems & Controls (School Bus) Practice Questions - ASE S7 - Air Conditioning Systems & Controls (School Bus) Certification Exam →