Which outcome occurs when hydrofluoroolefin (HFO) refrigerant leaks into a Positive Temperature Coefficient (PTC) heater?

💡 Explanation

Degraded heat transfer is the consequence. Because HFO refrigerant decomposition releases hydrofluoric acid, which corrodes the PTC’s ceramic components via chemical reactions, reducing thermal conductivity; therefore the heater's efficiency diminishes rapidly rather than maintaining stable power with unaffected components.

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