Purpose: If an HVAC system is found to be frozen upon arrival, follow the steps below to safely de-ice/thaw the system before proceeding with diagnostics. Do NOT instruct the customer to leave the system off with fan running and return later. De-ice ...
Thermal Shut Off How to troubleshoot a system off on thermal: Capacitor Has Failed How to check a capacitor while system is off: How to check a capacitor under load: High Voltage Issues How to check a breaker How to check the disconnect box: How to ...