Yes, a faulty thermostat can potentially cause an air conditioner to freeze up. The thermostat plays a crucial role in regulating the temperature and signaling the AC system when to turn on and off. If the thermostat is malfunctioning and fails to properly communicate with the AC unit, it can result in the system running longer than necessary, leading to excessive cooling and eventually causing the evaporator coil to freeze.
The time it takes to fix an AC unit can vary depending on the specific issue and the availability of HVAC technicians. Some problems can be resolved quickly, while others may require more time and complex repairs. In general, simple repairs or thermostat replacements can typically be completed within a few hours.
However, if the freezing issue is due to more significant problems, such as refrigerant leaks, clogged air filters, or malfunctioning components, the repair process may take longer. In some cases, it might require multiple visits from HVAC professionals or the replacement of certain parts.
To determine the exact cause of the AC freezing and the estimated repair time, it's best to contact a qualified HVAC technician. They can diagnose the issue and provide you with a more accurate assessment of the repair process and timeline.