Wrong move
Direct answer
The risky shortcut is condemning the reversing valve before verifying controls and defrost behavior. A heat pump can feel cool during defrost, low outdoor temperature operation, low airflow, auxiliary heat failure, reversing-valve trouble, refrigerant issues, or thermostat configuration problems.
How to use this answer
Read the answer once, then prove it by choosing an answer in a practice question before looking at the explanation. If the miss repeats, tag the domain as Heat pump field checks and drill a smaller set before returning to mixed practice.
Prep path
EPA 608 Study Guide
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