Carrier 40QA500067 Filter 321894-706 How do I verify if

How do I verify if the switch is the problem

the 11-5/8" bulb should be securely mounted in the path of airflow or attached directly to the heat source using OEM-approved clips to ensure accurate temperature feedback

This adapter is localized for the 3100 line

60" WC pressure rating

Carrier 40QA500067 Filter 321894-706 How do I verify ifThe Carrier 40QA500067 Filter is an essential OEM replacement component designed for high velocity and specialized airflow management within Carrier 40QA series fan coil units. As a critical part of the HVAC filtration system, this filter is engineered to maintain low static pressure while protecting the evaporator coil from particulate buildup, ensuring the system operates within its designed CFM specifications. Unlike generic alternatives, this