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Email at: office@todayac.com
HELP/COMMON ISSUES
Thermostat Functionality
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Confirm thermostat is powered (check for dead batteries or display issues).
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Verify mode (Heat/Cool/Auto) is correctly selected.
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Adjust setpoint 5°F above/below ambient to force a call.
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Listen for contactor click or signal to equipment.
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If smart thermostat: check Wi-Fi/app connectivity and manual override.
Power & Electrical
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Check breakers/fuses at panel and equipment disconnects (indoor & outdoor).
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Verify 24V control voltage present (R to C).
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Inspect for tripped float switch, burned low-voltage fuse (often 3A/5A on board).
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Confirm proper voltage at contactor (Y signal at outdoor unit).
Airflow Issues
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Check return air filter—replace if clogged.
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Confirm blower motor operation (inspect capacitor or ECM module if not spinning).
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Inspect ducts for collapsed or disconnected runs.
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Verify all supply/return vents are unblocked.
Outdoor Condenser (Cooling)
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Confirm contactor is pulling in with Y call.
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Check if condenser fan is running — if not:
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Inspect dual run capacitor (test µF value).
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Verify fan motor amperage draw.
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Check refrigerant line temperatures (suction line should be cold).
Indoor Equipment (Furnace or Air Handler)
Drainage/Float Switch
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Look for diagnostic LED codes on board—refer to manufacturer legend.
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Ensure safety switches (door, rollout, limit) are closed.
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Test inducer motor and pressure switch operation (heating).
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Confirm heat strips or gas ignition cycle initiates with call for heat.
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Inspect condensate pan and drain line.
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Verify float switch hasn’t been tripped due to clog or overflow.
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Test continuity on float switch if present.
System Signals & Control
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Use multimeter to confirm 24V signals at terminal block:
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R to G (fan)
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R to Y (cooling)
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R to W (heating)
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Inspect for any short circuits (especially wire chafe at outdoor unit or attic runs).
Refrigerant System (Cooling)
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Hook up gauges:
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Check pressures (Suction, Liquid).
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Inspect superheat/subcool values vs target.
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Look for signs of restriction or low charge.
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Visually inspect for oil residue = possible leak point.
If Issues Persist
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Isolate faulty component (control board, capacitor, motor, t-stat).
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Document model/serial and part specs.
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Communicate findings and get approval before performing major repairs.
We manage dozens of properties, and finding an HVAC team that’s both fast and reliable used to be a challenge—until we started working with Today. Not only do they show up when they say they will, but their tech-enabled reports give us real peace of mind. It's proof the work is done right, every time.
— Lisa G., Property Manager