11/12/2026
Would you know how to fix a 35-year-old rooftop unit? 🤔
We got a no-heat call in Upper Darby on a unit that’s been on this roof for 35+ years. A lot of people would see something this old and call it an automatic replacement. Here’s the secret, though: older units are often a little easier to work on than newer ones.
On equipment this old, safety comes first. Before anything else, we checked for carbon monoxide and made sure the heat exchanger was sound. Once we knew it was safe to run, we diagnosed it. The ignition control board wasn’t sending proper voltage to the igniter.
Next step is a new board, to see if we can get this unit running again. Then the customer gets the options, repair or replace, and they decide. No pressure, no automatic upsell.
On the ride from WP to UD we passed Barrco Plumbing Supply. Respect to an OG of the supply house game in West Philly and Upper Darby. They’ve been taking care of the trades out here for a long time, and a buddy of mine worked the counter back in high school. 🔧🙌
So what would you do: fix it, or replace it? Tell us in the comments 👇
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