PRESSURE SWITCH — PROTECTS YOUR A/C SYSTEM
PRESSURE SWITCH — PROTECTS YOUR A/C SYSTEM
Your A/C pressure switches (high & low) are critical safety devices that monitor refrigerant pressure and shut the system down when something isn’t right.
✔ Protects the compressor from damage
✔ Prevents overheating and freezing
✔ Keeps refrigerant pressures balanced
✔ Helps avoid costly repairs
✔ Supports safe system operation
⚠️ If a pressure switch trips, it’s usually a warning sign—not something to ignore.
Common causes:
• Dirty condenser or evaporator coil
• Low refrigerant (possible leak)
• Overcharged system
• Blocked airflow
• Fan or electrical issues
Warning signs:
• A/C shutting off suddenly
• System not cooling properly
• Short cycling
• Ice on lines or coil
• Unit not turning on
Ignoring pressure issues can lead to major system failure, especially compressor damage.
Routine maintenance helps keep pressures in range and your system running safely.
Small switches, big protection. ❄️
Uptown Heating and Air Conditioning
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