Blows warm air when cooling is on
Low refrigerant charge, an iced evaporator coil, a contactor welded shut, or a thermostat left in the wrong mode.
00 Playa Del Rey, California — Residential and light commercial
Heating. Cooling. Airflow.
All AC & Furnace Services works on central air conditioners, furnaces, heat pumps, ductless mini-splits, ductwork and thermostats for homes and small businesses in Playa Del Rey, California.
- Hours 24 hours
- Phone +1(424)237-3745
- Address 211 Culver Blvd, Playa Del Rey, CA 90293
01 Air Conditioning
Cooling
The blower pulls return air across the evaporator coil, refrigerant carries that heat to the condenser outside, and supply registers put cooled air back into the rooms. When cooling falls short, the cause is usually one of three things: airflow, charge, or an electrical component.
- Airflow before anything else. A loaded filter, a dust-packed evaporator coil or a crushed flex duct run starve the blower, and low airflow is what freezes the coil.
- Charge verification. Superheat and subcooling are read against the manufacturer chart for the installed line set length, on both R-410A and R-454B circuits.
- Electrical components. Capacitor values, contactor points, compressor amp draw and the disconnect are checked before any part is replaced.
- Condensate management. The condensate pan, drain line and float switch are cleared and tested so water leaves the cabinet instead of the ceiling.
- Controls. The thermostat call, low-voltage wiring and setpoints are confirmed, most homes holding between 68 and 72 degrees.
02 Heating
Furnaces and heat pumps
Most heating calls follow a short path: the unit will not ignite, it ignites and quits, or it runs without moving enough heat. Ignition, airflow and the heat exchanger are where a visit starts.
- Ignition
- Hot-surface ignitors crack with age, and a flame sensor with residue will light once and then drop out on the following cycle.
- Heat exchanger
- Inspected for scale and cracks. A cracked heat exchanger is a safety item, not an efficiency complaint.
- Blower motor
- Amp draw, wheel condition and capacitor tolerance are checked, since the same blower serves cooling mode.
- Heat pumps
- Reversing valve, defrost cycle and supplemental heat are tested. HSPF describes seasonal heating efficiency the way SEER2 describes cooling.
- Venting
- Flue draft, safety cutoffs and condensate drainage are verified on high-efficiency furnaces before the burner is left running.
03 Airflow
What the rooms actually feel
Airflow is the part of the system homeowners notice first. Rooms that never balance are usually a duct and return problem rather than a thermostat problem, and the fix starts with measurements at the registers.
- Return air
- Supply air
- Registers & grilles
- Flex duct
- Duct sizing
- Static pressure
- CFM
- Manual J
A common design target is roughly 400 CFM per ton of cooling, with total external static pressure read across the filter and the coil. An undersized or blocked return is the most common reason a system loses capacity while the thermostat keeps calling.
04 Maintenance
A visit is a list of readings
Maintenance is not a filter change. Each item below is checked, measured and written down so the next visit has something to compare against.
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Filters and returns
Filters checked for loading, return grilles cleared, and the return path confirmed open at every room.
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Coils
Condenser and evaporator coils cleaned so the refrigerant circuit can move heat the way the design expects.
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Condensate
Pan cleaned, drain flushed, float switch tested so a blocked line stops the unit instead of overflowing.
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Electrical
Capacitor values checked, contactor points inspected, amp draw recorded at the compressor and blower.
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Airflow readings
Temperature split across the coil and static pressure across filter and coil, taken and logged.
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Refrigerant
Superheat and subcooling compared against the charging chart for the installed line set length.
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Heating section
Burners cleaned, ignitor checked, heat exchanger inspected and flue draft verified before cold weather.
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Controls
Thermostat setpoints, schedules and calibration confirmed against a handheld reference instrument.
05 Equipment
What is in the closet, the attic and the yard
Most jobs touch the same handful of components. Knowing which cabinet you are standing in front of shortens the rest of the conversation.
- 01 Condenser The outdoor cabinet: compressor, condenser coil, fan motor and electrical compartment.
- 02 Evaporator coil and air handler Where return air meets refrigerant, together with the blower and the cabinet around it.
- 03 Gas furnace Burners, heat exchanger, blower and safeties. Efficiency is described by AFUE.
- 04 Heat pump Same shape as an air conditioner with a reversing valve added, so it heats and cools. Rated by HSPF for heating.
- 05 Ductless mini-split Indoor heads fed by a line set, useful where ductwork does not reach or will not balance.
- 06 RTU and AHU Rooftop units and air handler units, the packaged equipment common on small commercial buildings.
- 07 VRF Variable refrigerant flow systems serving many zones from one outdoor section.
- 08 Thermostat and controls The low-voltage side that calls for heat, cool and fan, and holds the setpoint between cycles.
06 Common Problems
The call usually starts with one of these
Describe the symptom, the system type and where the equipment sits. These are the complaints that come up most often, with what is checked first.
Starts and stops every few minutes
A dirty filter, low charge, short cycling from an oversized unit, or a thermostat mounted where it reads the wrong air.
Water staining the ceiling or pooling at the unit
A plugged condensate line, a float switch that has already tripped, or a frozen coil melting off after shutdown.
Weak airflow at the registers
Loaded filter, crushed flex duct, dampers left closed, or a blower wheel coated in dust.
Rooms never reach the same temperature
Duct leakage in an attic run, undersized returns, or branch dampers that were never balanced after work was done.
Furnace runs but no heat
A failed ignitor, flame sensor residue, a pressure switch that will not close, or a gas valve that is not opening.
Ice on the suction line
Airflow or charge. Both are corrected before refrigerant is added, or the ice returns within a day.
Blank thermostat screen
Dead batteries, a tripped float switch cutting the 24 volt common, or broken low-voltage wiring between the units.
07 Contact
Book a visit or ask a question
Call or write with the equipment type, the symptom and where the unit is installed — attic, closet, side yard or roof. Model and serial numbers help if they are reachable.
- Phone
- +1(424)237-3745
- [email protected]
- Address
- 211 Culver Blvd, Playa Del Rey, CA 90293
- Hours
- 24 hours
- Website
- allacfurnaceservices.site
- City & state
- Playa Del Rey, California
Before the visit
- Note whether the outdoor unit is running and whether the disconnect is accessible.
- Check the filter and the breaker, and confirm the thermostat is calling for the right mode.
- Look for water at the air handler, since a float switch will shut a unit down on purpose.