Our Comfortmaker AC in Dana Hills can't keep up on the hottest days. What's wrong?

It may be a fault, or it may be working at its limit. We check the temperature drop across the coil, the charge, the condenser coil and the airflow. If everything reads normal and the house still gains heat, the unit may be undersized or the attic may be adding heat, and we tell you which.

Is a Comfortmaker heat pump a sensible choice for Clayton's hot summers?

Yes, sized for the cooling load. A heat pump cools exactly like an air conditioner and adds efficient heating for the cooler months. We size it for summer, when the load is highest, and check the electrical panel before quoting.

How often should our Clayton condenser coil be cleaned?

In dry, dusty summers, once a year before the heat arrives is a good habit, and more often if the unit sits near landscaping or open ground. A clean coil lowers pressures and amp draw. We clean it from the inside out and check the fins while we are there.

COMFORTMAKER · CLAYTON

Service · All Comfortmaker Models

Comfortmaker Heat Pump, AC & Furnace Repair · Clayton, CA

Comfortmaker AC and heat pump repair in Clayton, where hot, dry summers put the condenser to work every afternoon.

$99 diagnostic (credited toward the repair)
Same or next-day best effort
CSLB #1136642

Call (925) 999-4095

Comfortmaker in Clayton

Comfortmaker heating and cooling in Clayton.

Clayton sits against Mount Diablo next to Concord, and its summers are hot and dry. For a Comfortmaker condenser that means long, loaded run times, and the parts that switch and start the compressor wear first. Winters are cooler, and a gas furnace or the heat pump carries that side.

Neighborhoods range from the well-established, mostly midsize homes of Dana Hills to Cardinet Glen and the larger homes of Peacock Creek, built from 1996. Bigger houses mean longer duct runs and more air to move, which puts extra load on the blower. For Clayton we send our technician based in Benicia. You pay a $99 diagnostic, credited toward the repair, and approve a written quote before work begins.

Common repairs we handle.

Run capacitor and contactor worn by summer heat. A Comfortmaker condenser that starts many times on a hot day wears its run capacitor and contactor fastest. The compressor hums, the fan spins slowly, or the unit clicks and does nothing. We measure capacitance and contactor resistance and replace what has drifted out of spec.
Low refrigerant charge and a frozen indoor coil. A slow leak drops the charge until the indoor coil freezes, and the house warms up even with the system running. We thaw the coil safely, find the leak with a detector and a pressure test, fix it, and weigh in the correct charge instead of topping it off.
Blower straining against long duct runs. In a bigger house, long runs and extra fittings raise static pressure, and the blower works harder to move air. Motors run hot and airflow drops at the far rooms. We measure static pressure, check filter size and blower settings, and point out the duct changes that would help most.

Models we service

Comfortmaker product lines.

Gas furnaces (SoftSound and base series)
Heat pumps and AC condensers
Communicating variable-speed systems
Air handlers and coils
Diagnostics, board and igniter repair, warranty work

Pricing and warranty

What it costs. What we stand behind.

$99

Diagnostic visit. Credited toward the repair.
Written

1-year warranty on repairs. Quoted in writing before work starts.
CSLB

#1136642. Bonded and insured. We file warranty paperwork when applicable.

Nearby cities

Comfortmaker service in neighboring cities.

More cities

Comfortmaker across our service area.

FAQ

Comfortmaker in Clayton questions, answered.

Our Comfortmaker AC in Dana Hills can't keep up on the hottest days. What's wrong?

It may be a fault, or it may be working at its limit. We check the temperature drop across the coil, the charge, the condenser coil and the airflow. If everything reads normal and the house still gains heat, the unit may be undersized or the attic may be adding heat, and we tell you which.
Is a Comfortmaker heat pump a sensible choice for Clayton's hot summers?

Yes, sized for the cooling load. A heat pump cools exactly like an air conditioner and adds efficient heating for the cooler months. We size it for summer, when the load is highest, and check the electrical panel before quoting.
How often should our Clayton condenser coil be cleaned?

In dry, dusty summers, once a year before the heat arrives is a good habit, and more often if the unit sits near landscaping or open ground. A clean coil lowers pressures and amp draw. We clean it from the inside out and check the fins while we are there.

Need Comfortmaker service in Clayton?

Tell us what is broken. We will quote it.