Rheem HVAC Error Code 32: How to Fix It

Q: What does Rheem Error Code 32 mean?

Error Code 32 means the auxiliary limit switch has opened due to excessive heat in your HVAC system. This is a safety feature that prevents overheating and potential fire hazards by shutting down the system when temperatures exceed safe levels.

Q: Can I bypass the auxiliary limit switch to get heat?

Never bypass the auxiliary limit switch. This safety device prevents dangerous overheating that could lead to fires or carbon monoxide poisoning. Bypassing it creates serious safety risks and may void your warranty.

Q: Why does my Rheem furnace keep getting Code 32?

Recurring Code 32 errors typically indicate restricted airflow (dirty filter, blocked vents), a failing blower motor, damaged heat exchanger, or improper gas pressure. If the error returns after basic maintenance, professional diagnosis is needed.

Q: How often should I change my air filter to prevent Code 32?

Replace your air filter every 1-3 months depending on usage, pets, and air quality. A clean filter ensures proper airflow and prevents the overheating that triggers Code 32. Check monthly and replace when dirty.

Q: Is it safe to run my Rheem HVAC with Error Code 32?

No, never run your system with Error Code 32 active. This error indicates dangerous overheating conditions. The system should remain off until the problem is identified and resolved to prevent potential fire hazards or equipment damage.

Abstract

Rheem HVAC Error Code 32 indicates that the auxiliary limit switch has opened, meaning your system's secondary high-temperature protection has been triggered. This safety feature activates when temperatures exceed safe operating levels, shutting down your system to prevent damage or fire hazards.