if the outdoor unit is failing to initiate defrost or staying in defrost too long

Use on non-compatible models may violate local codes and compromise safety

While optimized for the T-4000 Series

the KR325E12 seal cap includes a high-grade Maxitrol gasket to provide a reliable compression seal between the cap and the regulator body

Key Benefits Specifically designed for seamless compatibility with KMC CSC-3000 series controllers

Honeywell 203372 Aluminum Prefilter if the outdoor unit isThe Honeywell 203372 Aluminum Prefilter is a high efficiency mesh filter designed specifically for Honeywell Electronic Air Cleaners. Measuring 20 inches by 12 1 2 inches, this washable prefilter is essential for capturing large airborne particulates before they reach the main electronic cells. Utilizing an aluminum mesh construction, it protects the ionizing wires and collector plates from excessive loading, maintaining optimal electrostatic