The polybutylene and aluminum-wiring window, 150 amp panels, R-22 systems and first-cycle architectural shingle.

What follows is every hvac problem we cover that concentrates in this era of construction. Age does not mean worse — it means a different set of failures.

• SEER 10 system still running at thirty years
• Flex duct crushed or kinked in the attic
• Water on the floor near the air handler
• Cooling drops off on the hottest days only
• One zone stuck hot or cold
• Squeal or grind from the air handler
• Refrigerant line insulation crumbling
• Outdoor unit caked in cottonwood and red dust
• Thermostat set to 72 and the house reads 78

Back to Hvac.

---

Written by Jaylan Jones. I Like To Fix earns a referral fee when a call connects to a contractor. See our business-model disclosure.