Air Conditioning Repair
Air Conditioning Repair in Pennsylvania By Penn Mechanical Company
Summer should feel simple: set a temperature and get clean, cool air in every room, every time. When it doesn’t, the signs start small and become more specific: longer run times, warm air at the vents, ice on the copper line, a musty smell at startup, water near the air handler, or a bill spike that doesn’t match the weather. Add clicking or buzzing at the outdoor unit, a blower that won’t shut off, or a thermostat stuck in wait, and comfort becomes a daily hassle.
Penn Mechanical Company turns those symptoms into a clear plan. We diagnose the root cause, show you options in plain language, and make repairs that hold so your home cools quickly, runs quietly, and dehumidifies the way it should.
Quick Checks Before You Call (60 seconds that help)
- Set the thermostat to COOL and drop the setpoint 3–5°.
- Replace or clean the air filter if it’s dirty.
- Make sure supply/return vents aren’t blocked.
- Check the breaker and the indoor service switch.
- Clear leaves/grass within 2–3 feet of the outdoor unit.
- Water or ice present? Turn the system off and call don’t chip ice or bypass a float switch.
If it still won’t cool, there’s a real fault to find; we’ll handle the rest.
What We Repair (and how we solve it)
Airflow & Duct Issues
Weak room airflow, hot/cold spots, sweating ducts, or an iced indoor coil usually point to airflow problems. We set the blower for target CFM, clean the evaporator coil, add/resize returns, seal obvious duct leaks, and verify static pressure so the coil can actually do its job.
Refrigerant Circuit
Warm supply air, poor dehumidification, ice on the large copper line, and marathon run times often trace to charge or a small leak. We locate and repair leaks, pull a deep vacuum, and charge precisely by superheat/subcooling to the manufacturer’s spec never by guesswork.
Electrical & Mechanical
Clicking or humming at the outdoor unit, intermittent cooling, or random shutoffs signal failing components. We test and replace contactors, capacitors, and condenser-fan or blower motors as needed, then confirm safe amp draws and smooth start-up.
Controls & Thermostat
Short cycling, mode changes that won’t stick, wait messages, or schedules that don’t hold are control issues. We correct staging and configuration, repair low-voltage wiring faults, and calibrate or replace the thermostat so the system responds the way it should.
Condensate & Safety
Water near the air handler, musty start-up odors, or a system that won’t run can be drain or safety faults. We clear and treat condensate lines, confirm proper trap and slope, test/replace float switches, and add protection to prevent future overflows.
Ductless / Mini-Split Specific
A single head that cools poorly, water dripping from an indoor unit, or an outdoor coil that ices up are common ductless pain points. We clean washable filters and coils, correct drain slope or pump issues, verify charge and fan profiles, and re-commission the system for quiet, efficient operation.
Our Diagnostic Method (why our repairs stick)
- Reproduce the fault and pull any stored codes.
- Measure what matters: airflow and static pressure, temperature split, refrigerant superheat/subcooling, motor amp draws, and control signals.
- Explain options with a firm, up-front price no surprises.
- Repair and verify under load; document readings so you see the fix, not just feel it.
- Prevent the repeat with simple guidance (filter schedule, drain care, thermostat settings).
What This Service Includes (functions of our repair visit)
- Full system health check (indoor, outdoor, and thermostat)
- Coil cleaning where needed to restore heat transfer
- Electrical inspection: capacitors, contactor, connections, and safeties
- Refrigerant circuit test and precise charging to spec
- Drain clearing and float-switch test to protect ceilings/floors
- Written results with key numbers (temp split, static pressure, superheat/subcooling)
Benefits You’ll Notice Right Away
- Faster cool-down and steadier temperatures across rooms
- Quieter operation from properly set fans and healthy components
- Drier, more comfortable air as the coil dehumidifies correctly
- Lower risk of water damage thanks to a clean, protected condensate path
- Fewer surprise breakdowns because we fix causes, not just symptoms.
Signs You Should Call Now (from general to specific)
- Unit runs constantly but never reaches setpoint
- Warm air from vents or supply temps barely cooler than the room
- Ice on the suction line or indoor coil; water in the pan or on the floor
- Buzzing, chattering, grinding, or frequent clicking at start-up
- Musty or sour odors when the system kicks on
- Error codes at the thermostat or control board
Frequently Asked Questions
Yes. We service all major central and ductless A/C brands and carry common parts on our trucks.
Not without finding the leak. Topping off is a short-term patch that risks the compressor. We repair the cause, then charge to spec.
Often airflow and duct design not just the equipment. We can add returns, correct static pressure, or design zoning to fix it.
We prioritize no-cool situations during heat waves and aim to respond quickly.
Why Homeowners Choose Penn Mechanical
- Licensed, background-checked technicians who explain every step
- Flat, up-front pricing approved before work begins
- Fully stocked service vans most repairs finished in one visit
- Measured commissioning so repairs hold and comfort lasts
- Financing options available on qualifying larger repairs or replacements
Get Comfortable Again Fast
Tell us the symptoms warm air, icing, leaks, strange sounds, error codes and we’ll schedule the earliest available repair window with the right parts on the truck. Prefer to talk first? Call 484-877-8864 and a Penn Mechanical cooling specialist will guide you to the smartest next step.