Customer complaint
What the customer noticed
The air conditioner started and stopped at random and sometimes froze over.
Diagnostic findings
What inspection and testing revealed
Compressor and fan tests were normal. The freeze sensor had come loose from the evaporator coil. Moving the control box interrupted operation even though the accessible electrical connections were secure, indicating an internal control-box fault.
Work performed or recommended
What Sunset did or recommended
Reattached the freeze sensor, replaced the control box, and monitored the air conditioner for more than 20 minutes.
Outcome and next step
Where the service call stands
The air conditioner operated without further interruptions during the observation period.