OEM Goodman Primary Limit Temperature Control for AMH80603ANBC — 20162904

Goodman 20162904 Primary Limit Temperature Control

The Goodman 20162904 is a genuine OEM primary limit temperature control designed as an exact-fit replacement for the AMH80603ANBC gas furnace and other compatible Goodman and Amana models. Mounted on the heat-exchanger bulkhead, this primary high-limit control continuously senses supply-air temperature and interrupts the gas valve if the furnace overheats due to restricted airflow, a dirty filter, or a failing blower. It is the furnace's first line of thermal-safety defense and also helps sequence blower operation for comfortable, efficient heating.

Specifications

• OEM Part Number: 20162904
• Part Type: Primary Limit Temperature Control
• Function: High-limit overheat protection / blower control
• Reset: Automatic (temperature-sensing)
• Brand: Goodman / Amana
• Fits Model: AMH80603ANBC (and select Goodman/Amana furnaces)

OEM vs. Generic

The primary limit is factory-calibrated to a specific trip temperature and probe length matched to the AMH80603ANBC heat exchanger. A genuine Goodman 20162904 trips exactly on spec, protecting the exchanger without nuisance shutdowns. Generic substitutes with the wrong setpoint or probe depth can fail to protect the furnace or cause repeated cold-air cycling — never gamble on a primary safety control.

Installation

Difficulty: Moderate (3 of 5). Disconnect power, remove the mounting screws, note wire lead positions, and transfer connections to the new control. The sensing probe must insert to the same depth and orientation as the original. Restore power and verify proper limit function and blower timing. Recommended for HVAC technicians. Protect your AMH80603ANBC with the OEM Goodman 20162904.