Arizona HVAC Repairs

With winter approaching, if you have buildings that have T-bar type ceilings and you see brown stains on the tiles, then generally you have leakage from your air conditioning unit on the roof. Package units on the roof, generally have metal ducting or plenums (the metal boxes). When a plenum is assembled, there are numerous joints that need to be sealed. Water gets into these joints by circulation of the air actually sucking rain water into the plenum during rainstorms. The plenums should be inspected at least yearly for cracks from previous duct sealant and any joints that are not sealed. The cracks in the joints are easy to see. A duct sealant is applied with an inexpensive or throw away (chip brush) paint brush readily available at your favorite home improvement store. Sealant is usually either tan or gray and is also a standard stock item at your local home improvement store.

If you have a maintenance contract with your Arizona HVAC contractors, this is a service that should be included in your annual preventive maintenance for HVAC products such as Mesa HVAC and Phoenix HVAC. Check with your HVAC guy to make sure your contract covers this service if it doesn’t already.

While you are on the roof, visually inspect your electrical connections and watch for conduit coming apart and exposed wires. Exposed wires can result in shorts and extensive and expensive repairs. Another red flag is water leaking from the bottom of a unit. This indicates an obvious leak in the air conditioning unit itself. Also watch for rust and doors or panels missing from boxes. If you encounter any of these problems, either email me immediately or call your HVAC guy as soon as you get off the roof.