Why new EaDo townhomes still have AC problems

EaDo went from warehouses to townhomes in about a decade. Most of the housing here is newer than 2010, which is why the calls surprise people. You bought a nearly new home and the air conditioning is already struggling.

New does not mean well built, at least not where HVAC is concerned. Here is what we actually find in these houses.

Builder-grade means the cheapest unit that passed

On a spec build, the HVAC package is a line item to be minimized. That usually means the base model of a builder-tier line: single-stage, bottom of the efficiency range, with the least expensive components inside it. It is not defective. It is just the least equipment that satisfied code and the buyer walkthrough.

What that looks like five to eight years in:

• Capacitors failing early. The cheapest part in the system, working in Houston heat, on a unit that runs most of the year.
• Contactors pitting and sticking. Same story, and it presents as a unit that hums but will not start.
• Evaporator coil leaks, which are the expensive version of this problem and the one that pushes the repair-or-replace conversation.
• Undersized condenser pads that settle, tilting the unit and stressing the line set.

The warranty most owners lose without knowing

This is the part worth five minutes of your time. Manufacturer parts warranties on new equipment are commonly five to ten years, but two conditions catch people out:

• Registration. Most manufacturers require the equipment to be registered within roughly 60 to 90 days of installation to get the full term. Unregistered units often drop to a much shorter base warranty. On a spec build, nobody registers it, because the builder is not the owner and the owner does not know they need to.
• Transfer. If you bought the townhome from the original owner, the warranty may not have followed you, or may have required a transfer request inside a short window after the sale.

Parts warranties also almost never cover labor, so even a valid claim is not a free repair. Terms vary by manufacturer and by model, so check yours specifically. Find the model and serial number on the data plate of the outdoor unit and look it up before you assume you have no coverage. We check this as part of any diagnosis, because a covered coil changes the math on repair versus replace entirely.

One return for three floors

The narrow EaDo footprint forces the duct design into a shape that does not move air well. A townhome is tall and thin, so the trunk runs vertically and the branches get long. Very commonly there is a single central return, sometimes one per floor at best.

Return air is the half of the system people forget. If the system cannot pull air back efficiently, it cannot push it out either, no matter how healthy the equipment is. Signs you are short on return:

• Doors pull themselves shut, or whistle underneath, when the system runs.
• Closed bedrooms get noticeably worse than the rest of the house.
• The filter loads up unusually fast, or bows inward in its slot.
• The system is loud at the return grille specifically.

Adding return capacity is usually cheaper than people expect and fixes more comfort complaints than replacing equipment does.

The lofts are a different animal

EaDo also has genuine warehouse conversions, and those cool nothing like a townhome. Twenty foot ceilings mean the volume of air is far larger than the floor area suggests, so a system sized off square footage alone will always be short. Exposed spiral duct high in the space dumps cold air where nobody is standing, and the brick shell holds heat well into the evening after a Houston afternoon.

If you are in a loft, ceiling fans on reverse and destratification matter more than another ton of capacity. Our AC size calculator accounts for ceiling height, which is the variable most quotes ignore.

What to check before you call anyone

• Change the filter. On a single-return townhome it loads faster than you expect.
• Set the fan to AUTO, not ON. On ON it circulates warm air between cycles and adds humidity.
• Make sure no furniture or storage is blocking the return grille.
• Check that the outdoor unit has clear space, which is hard to come by on these lots.
• Photograph the data plate.

If the breaker keeps tripping, stop there and call. That is an electrical fault and resetting it repeatedly is a fire risk. More detail in why your AC is not cooling, and if you are weighing a bigger repair, repair versus replace.

We are around the corner

Our shop is at 4008 Wilmer St in 77003, so EaDo calls are usually a short drive rather than a trip across town. More on what we see in this part of Houston on our East End and EaDo page.