Maintenance During Major Repairs

 

Every contractor is different. I get that.

We don't all need to do everything the same way or include the same services with repairs, but there are some “best practices” that can save you a lot of heartache before, during, and after you make a big repair.

Catch it During Diagnosis

Let's say you find a failed, shorted compressor on a 7-year-old system that still has manufacturer parts coverage. If you simply quote the compressor and leave, you may be missing many other maintenance-related issues that can affect operation once the compressor is replaced. A shortlist of items to check would be:

And this is just for cooling side issues. If the system is a fuel-burning appliance, you will inspect every part of the furnace operation.

  • Venting
  • Condensate drainage
  • Burners
  • Flame proving
  • Safeties

And much more…

Testing all of these things is commonplace AFTER a repair. Still, it makes so much more sense to do it beforehand so that you can either charge appropriately for any of these items that need to be addressed or let the customer know you are including those items to differentiate you from the competition.

Things to Do Along With Major Repairs 

There are a few things you need to do during major air conditioning or refrigeration repairs because they just make good sense to prevent callbacks. You can include them in the price or not, but either way, it will save you more than it costs to do it.

Do these things along with all the standard tests you perform to ensure that you have no issues and that whatever caused the fault in the system has been rectified. Being thorough will save you a lot of problems. When the customer spends a lot of money getting a system fixed, they don't want to turn around and have it fail for an “unrelated” reason.

While this list is clearly tailored to the residential and light commercial air conditioning market, every piece of equipment has its common maintenance items. So, what do you do whenever you make a major repair?

—Bryan

 

Related Tech Tips

Attic Equipment Codes
I didn't install this unit. First off, attic installations are among my least favorite applications from the standpoints of serviceability, system longevity, and a laundry list of other items. Here in Florida, it's just a bad idea due to the high humidity and temperature in a vented attic and the condensation issues that can and […]
Read more
Hot Weather Preparedness/An Open Letter (Surviving a Heat Wave)
These are two separate emails that I sent to our customers and staff in preparation for what could be a very hot Memorial Day weekend (2019). I'm sharing it here so that you can use parts of it in your business as you see fit. I hate seeing techs get beat up on hot holiday […]
Read more
Control Voltage Overamp - The Less Usual Cause
In most cases when a low voltage circuit blows a fuse, it's because one of the circuits is shorted to ground or common—rubbed-out wires, shorted components or boards, etc. Less commonly, you will see the low voltage circuit draw high amperage because of magnetic solenoids that are energized, but the mechanical pin, stem, or armature […]
Read more

2 responses to “Maintenance During Major Repairs”

  1. Good list but should be done on every call not just major repairs.
    Gas furnace
    •Check/clean drain lines & trap
    •Inspect intake/exhaust for proper slope & termination, blockage
    •Clean flame sensor
    •Ohm out ignitor
    •Check/clean blower, filter, evap coil, & if suspected to possibly be dirty secondary heat exchanger
    •Temperature rise & if needed manifold pressure & duct static pressure
    •Inspect heat exchanger
    •Teat high limit

  2. Great point. In your example if we do a compressor, we have codes in our system that tells to replace the : Dryer, contactor and capacitor. even if they are in good shape. A compressor is too expensive to have it fasil in a week or a month. $40 in extra parts ensures you will have a compressor that stays working.

Leave a Reply

Your email address will not be published.

This site uses Akismet to reduce spam. Learn how your comment data is processed.

loading

To continue you need to agree to our terms.

The HVAC School site, podcast and daily tech tips
Made possible by Generous support from