24/7 Emergency AC Repair in Oakland & Macomb Counties
No cooling, a frozen coil, electrical failure, or an AC system that will not start? Sandison provides emergency air-conditioning diagnosis and repair throughout Oakland and Macomb Counties.
Call to request service. After-hours response and repair completion depend on technician, location, equipment, and parts availability.
Common AC Emergency Issues
AC not starting
Check that the thermostat is set to cool and the temperature is below the current room temperature. Verify the circuit breaker has not tripped. If the system still will not start, call for diagnosis.
System running but not cooling
A system that runs continuously without cooling may have a refrigerant issue, a dirty coil, or a failing compressor. These require professional diagnosis.
Frozen evaporator coil
Ice on the indoor coil or refrigerant lines indicates restricted airflow or a refrigerant problem. Turn the system off and allow it to thaw before calling.
Water leaking around the furnace or air handler
A clogged condensate drain is the most common cause. Turn the system off to prevent water damage and call for service.
Outdoor condenser not running
If the indoor air handler runs but the outdoor unit does not, the issue may be a tripped breaker, a failed capacitor, or a refrigerant problem.
Breaker repeatedly tripping
A breaker that trips when the AC starts or runs indicates an electrical fault or an overloaded circuit. Do not continue resetting it — call for diagnosis.
Burning smell or electrical concern
Turn the system off at the thermostat and the breaker. A burning smell from an AC system requires immediate professional inspection.
Unusual compressor or fan noise
Grinding, squealing, or banging from the outdoor unit may indicate a failing compressor, motor bearing, or debris in the fan.
Residential and Commercial AC Service
Residential Systems
Sandison services central air conditioning systems, ductless mini-splits, and heat pumps for Oakland and Macomb County homeowners. We diagnose the problem accurately before recommending repairs.
Commercial Rooftop Equipment
Commercial HVAC failures affect business operations and occupant comfort. Sandison services rooftop units, packaged systems, and split systems for commercial and institutional facilities.
What to Check Before Calling
These steps may resolve the issue or provide useful information for the technician:
- Check that the thermostat is set to "Cool" and the set temperature is below room temperature.
- Verify the system switch at the air handler or furnace is in the "On" position.
- Check the circuit breaker for the air conditioner and air handler.
- Replace the air filter if it has not been changed recently — a clogged filter can cause the system to freeze or shut down.
- Check that all supply and return vents are open and unobstructed.
- Look for ice on the indoor coil or refrigerant lines. If present, turn the system off and allow it to thaw.
What to Expect During Diagnosis
System assessment
The technician will inspect the indoor and outdoor components, check refrigerant pressure, electrical connections, and airflow.
Findings and options
Sandison will explain what was found and present repair options with pricing before any work begins.
Repair or follow-up
If parts are available and the repair is approved, work proceeds. If parts must be ordered, a follow-up visit will be scheduled.
Emergency AC Repair — Frequently Asked Questions
Can every AC problem be repaired on the first visit?
Is emergency AC service available after hours?
Do you service commercial rooftop equipment?
What if my AC system is old and may not be worth repairing?
AC Not Working? Call Sandison.
Call (248) 453-1227 to request emergency AC service in Oakland and Macomb Counties. For non-urgent requests, use the online form.