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Ultimate Commercial HVAC Maintenance Checklist

May 15, 2018

Commercial HVAC systems are put through tremendous stress throughout the year. With possible zoning differences and often times, larger areas to heat or cool, commercial HVAC systems require a routine maintenance throughout the year.

Regular maintenance keeps air conditioners and furnaces operating at their best. It allows for small issues to be addressed and for greater underlying issues to be noticed before they become irreparable problems. This gives business owners peace of mind and allows the systems to operate at maximum energy efficiency, which saves money on monthly energy bills.

Inspect

Carrier products are built to last. Often times, maintenance visits are focused on preventative care for systems that have the capacity to last for 20 years. However, wear and tear naturally occurs over time. Small factors can slowly add up to shorten system lifespan and impact performance. Regular inspections can prevent these small factors from becoming major malfunctions. Each maintenance trip, LA HVAC contractors should be inspecting:

  • Belts and pulleys
  • Refrigerant charge
  • Fluid leaks
  • Drain lines and pans
  • Electrical connections
  • Thermostats and other electrical controls
  • Condenser and evaporator coils
  • Fan and blower motor
  • System performance – Air flow, sound and overall function
  • Heat exchanger (furnace maintenance)
  • Ignition and burner assembly (furnace maintenance)

Clean

Keep HVAC systems clean will prevent small nuisances from becoming major system issues. A clean HVAC system will function at its maximum capacity and efficiency. This will ensure the system reaches its ideal lifespan and keep energy bills low. If applicable, HVAC contractors should clean these components of an HVAC system during a maintenance visit:

  • Clean filter (if applicable)
  • Clean drain lines and pans
  • Clearing away dust and debris
  • Leaks (hazardous liquids should be professionally cleaned up to ensure safety)

Repair/replace

Over time belts can wear, connections can loosen, liquids will drain and electronics can short. This requires fast and effective servicing to ensure system integrity, maximum efficiency and proper function. HVAC technicians should make these repairs in their maintenance trips:

  • Replace air or furnace filter
  • Fasten, connect electrical components
  • Lubricate moving parts (bearings, motors, etc.)
  • Adjust misalignments
  • Correct fan or blower motor function

Test

Once the system has been inspected, thoroughly cleaned and all necessary repairs have been completed, it’s time to test your work. You should never leave a maintenance visit without knowing that the system is ready to handle the warm or cool season to come.

Make sure the system not only starts up, but is visibly and audibly running efficiently and effectively. If you notice any shortcomings, understand what is covered in your agreement and make the decision on what can be repaired immediately or what needs to be run by the client for further approval.

Inform

As so many HVAC customers feel isolated from the HVAC contractors that they hire, this point can not be stressed enough. After each maintenance visit, your client should be aware of your findings. Informing your client of frequent issues can prevent further instances or allow them to make executive decisions on more involved repairs or upgrades to the system’s performance. Always take the extra time to keep your client informed.

If your HVAC contractor isn’t adhering to this maintenance checklist, you may want to consider a more reputable company. Brody Pennell is nationally recognized as a leader in the HVAC industry. Our service is second to none in the Los Angeles metropolitan area. To find out more about our commercial HVAC maintenance agreements, give us a call @ (310) 836-0606.


About The Author

Brody Pennell

Since 1945, Brody Pennell Heating & Air Conditioning is the committed to helping homeowners in the greater Los Angeles area experience total home comfort. In 2021, the readers of the Los Angeles Times voted Brody Pennell the Best HVAC Company in the area.

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Google logo with 4.9 star rating
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m T.
1714695455
Anthony Manzo any David Mares were great - a pleasure to work with. Knowledgeable professionals and nice guys. They did great work and we will request them for our next service.
Travis W.
1714695371
Ruben and Angel were awesome. Very thorough and professional. Best HVAC gentlemen that I have worked with in quite some time.
Colette D.
1714693875
Marco Ayala did a great job. He was thorough and straightforward.
Carlo
1714691808
Juan Molina was the best, he was detail oriented and clean and fast service.
Julia R.
1714690410
Ashton, Field Supervisor, was great. We trusted his recommendations for a new heating system. He will personally come with the installers to make sure our home is taken care of and everything goes well.He also connected with us personally, so it was an enjoyable experience.Cesar CCesar was excellent. Cheerful, professional, clean, very skilled.He explained how to use our zone system properly. We didn’t know.He re-set things so the system won’t get too hot and we will be safe.Cesar tested everything to be sure it was working well.I give him high scores for customer service.Thank you for sending him right away when our system shut off.April 2024Cesar Corrales came for regular maintenance service. He returned to install a part in the condenser so it lasts longer.With him the first time was Freddy, then Maurice. They also did a good job. They are learning from Cesar.Cesar is extremely thorough, checking every aspect of the system. He and I’m doing a review Freddy even took the top off the condenser and cleaned it out with the vacuum, then hosed it. Amazing!Cesar is so knowledgeable and answers all my questions. He’s also very personable, kind, and has a sense of humor.Cesar is respectful and courteous. He goes out of his way to keep everything clean in the house.I highly recommend Cesar and the people who come with him to learn from him.
Kevin S.
1714684117
Rene Morales did a great job! Got us back and running.
Chuck R.
1714680489
Enrique, Jose and Gerson did a great job installing our cooling on 5/2/24 thank you.Desi Sanchez was very professional and efficient in checking and tuning our HVAC system. He took great care to double check his work and explain what he was doing. I'll continue to use Brody Pennell and ask for Desi for future visits.
Penelope G.
1714679872
Ivan Diaz and David Escamilla were great !
Craig N.
1714676701
Juan de Jesus
Lori M.
1714676526
I’m so glad I found Brody Pennell. Setting up the appointment was a breeze. Rene showed up on time was very friendly very communicative and an excellent worker. He kept me informed on everything showed me pictures of what was on the roof and in the attic. I’ll definitely be using them again.
christopher D.
1714676448
Juan Romo was a professional and broke down everything that was wrong with our unit and how to fix it
reyna C.
1714675299
Juancho y Juan C did a good job very helpful great guys send them back
Jennifer R.
1714609134
Love Brody Pennell! They make my AC life easy! Daniel A. And Juan D. did an exceptional job today with their visit! Kept me informed of their progress and made it easy! They were also super nice about my crazy barking dog!
Denise B.
1714607850
Work will proceed Monday. Meantime Ivan answer all questions and some. There was an integrity about this tech that made it easier to feel confident about our decision working with Brody. Thank you 😊Today Octavio & Ivan came and got busy baby. I am so happy with the work and these two gentlemen. I actually purchased the service warranty. This way I feel confident they'll keep my AC & heating systems puuurrring.Thank you Brody Pennell...😍🥰
Jorge R.
1714594340
Our technician David M and field support Michael S performed a maintenance and health assessment on my old furnace, and were able to help me figure out the best upgrade options. I appreciate their attention to details, the thoroughness of their work and evaluation, and their very professional and cordial attitude. I highly recommend and appreciate the professionals at Brody Penell.
CRMCSYS
1714593647
4.8.2024Marco Ayala (technician), Juan U. (apprentice) and their supervisor Ashton were courteous, patient and thorough. They reviewed the problems I have with my Carrier unit and explained why I needed it replaced. I was given the choice of 3 new models with price and labor for each. They offered to contact my HOA’s management company for the roof installation and will arrange a city inspection after the work is completed. I would not hesitate recommending Brody Pennell to family and friends.5.1.2024Update: Edgar Hernandez, an installation tech, came today to adjust the settings in my Honeywell wall panel and was as polite and knowledgeable as the previous techs. More good news: I wasn't certain if BP's electrical contractor(s) only dealt with large projects or they are also available for individual homeowner concerns. Edgar assured me I can call them for electrical work.Every time I phoned BP the automated answering system placed me on hold but someone always picked up my calls within 30 seconds. BP sent emails confirming appointments. The day of the appointments I received emails and texts with the full name and photo of the techs (which addresses security concerns for a single person living alone) and links to a map so I could track the progress of the techs with estimated arrival times.
Loyda S.
1714585835
Juan C. and Juancho we’re both very knowledgeable of the job they did! I definitely recommend them.
Bob B
1714526472
Kevin Lopez, and Ruben Medina at Brody came in late this afternoon and saved me from an evening from...well you know-Best company out there, and growing fast-well deserved!
Kelly R.
1714522252
Juancho was prompt, communicative and friendly. He took his time to thoroughly perform the requested service and explain to me what was done. We are very pleased with his service!
Lanie L.
1714520860
Maurice came and serviced our system. He did a wonderful job and was very friendly and professional. Highly recommend!
Justin K
1714520842
Maurice did a great job! He was professional, fast, courteous and very knowledgeable!
Irvin P.
1714519544
Leo and Tristen walked me through the process and explained the work they had done. Very professional and thorough.
Julie B.
1714514587
Jose S did a great job. He was thorough and took great care in his work.
Joseph H.
1714514370
Marco and Ashton are very courteous, friendly, and professional. They are very knowledgeable, and expertly performed their inspection on my heating and air conditioning system. Marco even went above and beyond, and installed a fix for my thermostat on the spot at no charge. I highly recommend Marco, Ashton and the Brody Pennell team!
Sean D.
1714513315
We had excellent service from Rene our technician. He was a total pro, on time, helpful and knowledgeable about options for upgrades/upkeep to our system. Would highly recommend Rene andBrody Pennell to anyone seeking heating or AC service.
Pamela J.
1714513041
Anthony Manzo,Brett Turner, Mike and Raul I, Ben T and Rafael A gave me great service and excellent recommendations. They made sure I understood everything. Thanks!
Emily M.
1714504473
Anthony M Armando N good work
William N.
1714503162
Tristen and Leo H were here to service our heating units. They did an outstanding job. Very thorough, showed me pictures of the before and after. Explained everything and I was very pleased with their work.
Marlene T.
1714502098
Kevin Lopez and Philip were both punctual, efficient and through! Great techs!
Viviana S.
1714500166
Anthony manzo Armando N. Great work
Eric S.
1714498879
Rene has been our technician and absolutely amazing! I highly recommend Brody Pennell for any HVAC needs.8/9 - Rene and Arshag came again to rewire our dampers and got everything working perfectly! Once again, highly recommend it!9/8 - Rene came back to check on our board. Once again he crushed it and solved the problem12/22 - Once again, Renee was a rock Star solving some major HVAC issues were having!1/18 - Rene and Arshag had to stop by today to fix an issue with a nest controller. Once again service was impeccable and everything solved.4/30 - Rene came out to replace a nest thermostat that was not functioning properly. Once again, awesome service!
Mark L.
1714436716
Juan Romo was great!
Amber J.
1714434201
Ruben and Ariel was exceptionally friendly! I LOVED that Ruben kept me in the loop and followed up with me. I also appreciated that he called prior to give me his eta so I can prepare and knew when to expect their arrival. Both were super patient and nice 👏👏👏
Charlie M.
1714432428
Leo H and Tristen were great. timely, efficient and knowledgeable. I will continue to use Brody Pennell with service like this.
Sharon R.
1714426699
Outstanding professional service. The members of the office staff, as well as the service technicians, are courteous, professional and friendly. Pablo and Phillip were the technicians who serviced our units today-They explained every detail to us which we greatly appreciated!
Sarah G.
1714418555
Kevin and Freddy were timely and kind. They were great at communicating and teaching us about AC maintenance. They were respectful of our space wearing booties over their shoes and laying down their own mats. They were thorough and also efficient. We will be requesting Kevin again for future needs. Thank you
Damon R.
1714418094
The service tech Juan Molina did a great job. He showed up on time, explained the situation and solved the issue. I greatly recommend him and Brody Pennell.
David R.
1714415243
Ivan & Maurice
Yulin S.
1714240602
Juan Romo is very nice and knowledgeable technician. He finished my maintenance in very detail ways and provided reasonable suggestions. I highly recommended him for future work on my HVAC
Zehra E.
1714233395
Ivan Diaz was great!
Maria L.
1714171589
Juan molina and gino were amazing!!! So professional and took so much time to go over everything with me.
Annick W.
1714169418
Your crew is so nice and efficient and know what they are talking about. It was a pleasure to work with them.
Brett W.
1714164822
James and Maurice came on time, were respectful and professional. As they checked out the issue, they went above and beyond, checking every piece of the furnace for a malfunction and doing a second pass just to make sure. Great service, will use them again.
Louise H.
1714163878
Juancho and Marco did a great job today!!Please come back. Thank you!☺️
Nancy A.
1714163468
Rene was very professional and friendly and diagnosed the issue with the old heater in our house. Loved how you could see exactly what the problem was with the camera probe. He was very knowledgeable and aware of the safety issues of an older heater for the family. Thank you for your quick and competent service.
Steve H.
1714163233
Kevin did a good job.
Beth F.
1714161877
Daniel B. was very polite and helpful. I am very happy with service from Brody Pennell.
Jeremy S.
1714155867
David M. did a fine job during the service call. He was, kind, knowledgeable, and professional. He represented his company well.
Pat D.
1714155494
James h friendly and efficient
Diana R.
1714153844
Daniel Avila was super!! Very professional and had a lovely disposition. He took care of un in no time. I highly recommend him.
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Service Request

"*" indicates required fields

This field is for validation purposes and should be left unchanged.
m T.
1714695455
Anthony Manzo any David Mares were great - a pleasure to work with. Knowledgeable professionals and nice guys. They did great work and we will request them for our next service.
Travis W.
1714695371
Ruben and Angel were awesome. Very thorough and professional. Best HVAC gentlemen that I have worked with in quite some time.
Colette D.
1714693875
Marco Ayala did a great job. He was thorough and straightforward.
Carlo
1714691808
Juan Molina was the best, he was detail oriented and clean and fast service.
Julia R.
1714690410
Ashton, Field Supervisor, was great. We trusted his recommendations for a new heating system. He will personally come with the installers to make sure our home is taken care of and everything goes well.He also connected with us personally, so it was an enjoyable experience.Cesar CCesar was excellent. Cheerful, professional, clean, very skilled.He explained how to use our zone system properly. We didn’t know.He re-set things so the system won’t get too hot and we will be safe.Cesar tested everything to be sure it was working well.I give him high scores for customer service.Thank you for sending him right away when our system shut off.April 2024Cesar Corrales came for regular maintenance service. He returned to install a part in the condenser so it lasts longer.With him the first time was Freddy, then Maurice. They also did a good job. They are learning from Cesar.Cesar is extremely thorough, checking every aspect of the system. He and I’m doing a review Freddy even took the top off the condenser and cleaned it out with the vacuum, then hosed it. Amazing!Cesar is so knowledgeable and answers all my questions. He’s also very personable, kind, and has a sense of humor.Cesar is respectful and courteous. He goes out of his way to keep everything clean in the house.I highly recommend Cesar and the people who come with him to learn from him.
Kevin S.
1714684117
Rene Morales did a great job! Got us back and running.
Chuck R.
1714680489
Enrique, Jose and Gerson did a great job installing our cooling on 5/2/24 thank you.Desi Sanchez was very professional and efficient in checking and tuning our HVAC system. He took great care to double check his work and explain what he was doing. I'll continue to use Brody Pennell and ask for Desi for future visits.
Penelope G.
1714679872
Ivan Diaz and David Escamilla were great !
Craig N.
1714676701
Juan de Jesus
Lori M.
1714676526
I’m so glad I found Brody Pennell. Setting up the appointment was a breeze. Rene showed up on time was very friendly very communicative and an excellent worker. He kept me informed on everything showed me pictures of what was on the roof and in the attic. I’ll definitely be using them again.
christopher D.
1714676448
Juan Romo was a professional and broke down everything that was wrong with our unit and how to fix it
reyna C.
1714675299
Juancho y Juan C did a good job very helpful great guys send them back
Jennifer R.
1714609134
Love Brody Pennell! They make my AC life easy! Daniel A. And Juan D. did an exceptional job today with their visit! Kept me informed of their progress and made it easy! They were also super nice about my crazy barking dog!
Denise B.
1714607850
Work will proceed Monday. Meantime Ivan answer all questions and some. There was an integrity about this tech that made it easier to feel confident about our decision working with Brody. Thank you 😊Today Octavio & Ivan came and got busy baby. I am so happy with the work and these two gentlemen. I actually purchased the service warranty. This way I feel confident they'll keep my AC & heating systems puuurrring.Thank you Brody Pennell...😍🥰
Jorge R.
1714594340
Our technician David M and field support Michael S performed a maintenance and health assessment on my old furnace, and were able to help me figure out the best upgrade options. I appreciate their attention to details, the thoroughness of their work and evaluation, and their very professional and cordial attitude. I highly recommend and appreciate the professionals at Brody Penell.
CRMCSYS
1714593647
4.8.2024Marco Ayala (technician), Juan U. (apprentice) and their supervisor Ashton were courteous, patient and thorough. They reviewed the problems I have with my Carrier unit and explained why I needed it replaced. I was given the choice of 3 new models with price and labor for each. They offered to contact my HOA’s management company for the roof installation and will arrange a city inspection after the work is completed. I would not hesitate recommending Brody Pennell to family and friends.5.1.2024Update: Edgar Hernandez, an installation tech, came today to adjust the settings in my Honeywell wall panel and was as polite and knowledgeable as the previous techs. More good news: I wasn't certain if BP's electrical contractor(s) only dealt with large projects or they are also available for individual homeowner concerns. Edgar assured me I can call them for electrical work.Every time I phoned BP the automated answering system placed me on hold but someone always picked up my calls within 30 seconds. BP sent emails confirming appointments. The day of the appointments I received emails and texts with the full name and photo of the techs (which addresses security concerns for a single person living alone) and links to a map so I could track the progress of the techs with estimated arrival times.
Loyda S.
1714585835
Juan C. and Juancho we’re both very knowledgeable of the job they did! I definitely recommend them.
Bob B
1714526472
Kevin Lopez, and Ruben Medina at Brody came in late this afternoon and saved me from an evening from...well you know-Best company out there, and growing fast-well deserved!
Kelly R.
1714522252
Juancho was prompt, communicative and friendly. He took his time to thoroughly perform the requested service and explain to me what was done. We are very pleased with his service!
Lanie L.
1714520860
Maurice came and serviced our system. He did a wonderful job and was very friendly and professional. Highly recommend!
Justin K
1714520842
Maurice did a great job! He was professional, fast, courteous and very knowledgeable!
Irvin P.
1714519544
Leo and Tristen walked me through the process and explained the work they had done. Very professional and thorough.
Julie B.
1714514587
Jose S did a great job. He was thorough and took great care in his work.
Joseph H.
1714514370
Marco and Ashton are very courteous, friendly, and professional. They are very knowledgeable, and expertly performed their inspection on my heating and air conditioning system. Marco even went above and beyond, and installed a fix for my thermostat on the spot at no charge. I highly recommend Marco, Ashton and the Brody Pennell team!
Sean D.
1714513315
We had excellent service from Rene our technician. He was a total pro, on time, helpful and knowledgeable about options for upgrades/upkeep to our system. Would highly recommend Rene andBrody Pennell to anyone seeking heating or AC service.
Pamela J.
1714513041
Anthony Manzo,Brett Turner, Mike and Raul I, Ben T and Rafael A gave me great service and excellent recommendations. They made sure I understood everything. Thanks!
Emily M.
1714504473
Anthony M Armando N good work
William N.
1714503162
Tristen and Leo H were here to service our heating units. They did an outstanding job. Very thorough, showed me pictures of the before and after. Explained everything and I was very pleased with their work.
Marlene T.
1714502098
Kevin Lopez and Philip were both punctual, efficient and through! Great techs!
Viviana S.
1714500166
Anthony manzo Armando N. Great work
Eric S.
1714498879
Rene has been our technician and absolutely amazing! I highly recommend Brody Pennell for any HVAC needs.8/9 - Rene and Arshag came again to rewire our dampers and got everything working perfectly! Once again, highly recommend it!9/8 - Rene came back to check on our board. Once again he crushed it and solved the problem12/22 - Once again, Renee was a rock Star solving some major HVAC issues were having!1/18 - Rene and Arshag had to stop by today to fix an issue with a nest controller. Once again service was impeccable and everything solved.4/30 - Rene came out to replace a nest thermostat that was not functioning properly. Once again, awesome service!
Mark L.
1714436716
Juan Romo was great!
Amber J.
1714434201
Ruben and Ariel was exceptionally friendly! I LOVED that Ruben kept me in the loop and followed up with me. I also appreciated that he called prior to give me his eta so I can prepare and knew when to expect their arrival. Both were super patient and nice 👏👏👏
Charlie M.
1714432428
Leo H and Tristen were great. timely, efficient and knowledgeable. I will continue to use Brody Pennell with service like this.
Sharon R.
1714426699
Outstanding professional service. The members of the office staff, as well as the service technicians, are courteous, professional and friendly. Pablo and Phillip were the technicians who serviced our units today-They explained every detail to us which we greatly appreciated!
Sarah G.
1714418555
Kevin and Freddy were timely and kind. They were great at communicating and teaching us about AC maintenance. They were respectful of our space wearing booties over their shoes and laying down their own mats. They were thorough and also efficient. We will be requesting Kevin again for future needs. Thank you
Damon R.
1714418094
The service tech Juan Molina did a great job. He showed up on time, explained the situation and solved the issue. I greatly recommend him and Brody Pennell.
David R.
1714415243
Ivan & Maurice
Yulin S.
1714240602
Juan Romo is very nice and knowledgeable technician. He finished my maintenance in very detail ways and provided reasonable suggestions. I highly recommended him for future work on my HVAC
Zehra E.
1714233395
Ivan Diaz was great!
Maria L.
1714171589
Juan molina and gino were amazing!!! So professional and took so much time to go over everything with me.
Annick W.
1714169418
Your crew is so nice and efficient and know what they are talking about. It was a pleasure to work with them.
Brett W.
1714164822
James and Maurice came on time, were respectful and professional. As they checked out the issue, they went above and beyond, checking every piece of the furnace for a malfunction and doing a second pass just to make sure. Great service, will use them again.
Louise H.
1714163878
Juancho and Marco did a great job today!!Please come back. Thank you!☺️
Nancy A.
1714163468
Rene was very professional and friendly and diagnosed the issue with the old heater in our house. Loved how you could see exactly what the problem was with the camera probe. He was very knowledgeable and aware of the safety issues of an older heater for the family. Thank you for your quick and competent service.
Steve H.
1714163233
Kevin did a good job.
Beth F.
1714161877
Daniel B. was very polite and helpful. I am very happy with service from Brody Pennell.
Jeremy S.
1714155867
David M. did a fine job during the service call. He was, kind, knowledgeable, and professional. He represented his company well.
Pat D.
1714155494
James h friendly and efficient
Diana R.
1714153844
Daniel Avila was super!! Very professional and had a lovely disposition. He took care of un in no time. I highly recommend him.
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