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A/C Pressure Switch

A/C System

Monitors refrigerant pressure to prevent system damage.

The pressure switch detects refrigerant pressure levels in the A/C system and signals the compressor to engage or disengage to avoid damage from high or low pressure.

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Typical part cost
$20–$60🔒
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Typical labor cost
$50–$200🔒
🛣️
Typically lasts
70,000–140,000 mi
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Or about
4.0–10.0 years
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DIY difficulty
4/10

⚠️ Owners Often Notice

If the A/C Pressure Switch is starting to fail, these are the signs owners most commonly report before it gets worse:

A/C not engaging
No cooling
Overheating compressor
Pressure sensor failure
System shutdown
Erratic cooling

Related Services

Services commonly performed on or around this part.

Replace A/C Pressure Switch

No standard interval on file

Inspect A/C Pressure Switch

No standard interval on file

Test A/C Pressure Switch

No standard interval on file