OEM Goodman Primary High Limit Control for ACVM970803BNAA — 20162904

Goodman 20162904 Primary High-Limit Temperature Control

The 20162904 is the genuine OEM primary high-limit control for the Goodman/Amana ACVM970803BNAA modulating variable-speed gas furnace. This safety switch continuously monitors heat-exchanger discharge temperature and shuts off the gas valve and burners if the furnace overheats — protecting the heat exchanger, blower, and your home from unsafe operating conditions. A failed limit control is one of the most common causes of a furnace that ignites and then short-cycles or locks out on a safety fault.

Specifications

• Function: Primary high-limit / temperature cutout
• Type: Snap-disc bimetal automatic-reset limit
• Mounting: Bracket-mount to furnace vestibule panel
• Equipment: Gas furnace (modulating / variable-speed)
• Fits: Goodman & Amana ACVM970803BNAA and compatible 97% AFUE models
• OEM Part No.: 20162904

OEM vs. Generic

Our OEM 20162904 ships with the factory-calibrated trip temperature matched exactly to the ACVM heat-exchanger design, guaranteeing correct safety cutoff and preserving your equipment warranty. Universal aftermarket limits may carry an incorrect setpoint, causing nuisance lockouts or — worse — failing to trip when needed. For a primary safety device, OEM is strongly recommended.

Install Difficulty

Moderate (2/5). Two wire terminals and two mounting screws; 15–20 minutes for a competent DIYer. Cut power at the breaker before servicing. If the furnace repeatedly trips the limit, also inspect the blower motor and airflow — a failed limit is often a symptom of restricted airflow, not the root cause.