Are you a homeowner or building manager?
Find a Contractor »

Tech Challenge

January/February 2024 Tech Challenge Answer

A medium-temperature cooler utilizing R-134a with a TXV metering device with the receiver has a customer complaint of “warm.” The symptoms confirm warm product, and the condensing unit is cycling frequently on the LPC (low-pressure control). What are the “possible causes” with the following measured conditions on this field service check sheet? Find out here!

November/December 2023 Tech Challenge Answer

A residential split A/C system utilizing R-410A with a fixed orifice metering device has a customer complaint of “insufficient cooling.” The symptoms confirm that the thermostat is not satisfied, and the condensing unit and blower are running continuously. What are the “possible causes” with the following measured conditions on this field service check sheet? Find out here!

September 2023 Tech Challenge Answer

Share this challenge with your staff and see who can figure out the diagnosis first. A frozen food case utilizing […]

September 2023 Tech Challenge

Share this challenge with your staff and see who can figure out the diagnosis first. A frozen food case utilizing […]

July Tech Challenge ANSWER

The answer to the ACCA HVAC Blog July Tech Challenge is here! Check out this blog to see if you were able to find the answer!

July Tech Challenge

July Tech Challenge Question: What are the “possible causes” with the following measured conditions on this field service check sheet?

May Tech Challenge ANSWER

The answer to the ACCA HVAC Blog May Tech Challenge is here! Check out this blog to see if you were able to find the answer!

May Tech Challenge

May’s Tech Challenge Question – What are the “possible causes” with the following measured conditions on this field service check sheet?

ANSWER Tech Challenge March 2023

The answer to the ACCA HVAC Blog March Tech Challenge is here! Check out this blog to see if you were able to find the answer!

Tech Challenge March 2023

March’s Tech Challenge Question – What are the “possible causes” with the following measured/calculated conditions on this field service check sheet?

Tech Challenge January – Answer

The answer to the ACCA HVAC Blog January’s Tech Challenge is here! Check out the answer to see if you were able to find the answer!

Tech Challenge January 2023

January’s Tech Challenge Question – What are the “possible causes” with the following measured/calculated conditions on this field service check sheet? Check back in February for the answer.

November Tech Challenge – Answer

The answer to the ACCA HVAC Blog November’s Tech Challenge is here! Check out the answer to see if you were able to find the answer!

November Tech Challenge – Question

November’s Tech Challenge Question – What are the possible causes of the following measured conditions in this field service check sheet? Check back in December for the answer.

September Tech Challenge – Answer

The answer to the ACCA HVAC Blog September’s Tech Challenge is here! Check out this blog to see if you were able to find the answer!

September Tech Challenge – Questions

A commercial rooftop utilizing R-410A with a fixed feed device has the customer complaint of “no cooling.” The symptoms confirm […]

July Tech Challenge — Answer

The answer to the ACCA HVAC Blog July’s Tech Challenge is here! Check out the answer to see if you were able to find the answer!

July Tech Challenge — Question

July’s Tech Challenge Question – What are the possible causes of the following measured conditions in this field service check sheet? Check back in August for the answer.

May Tech Challenge — Answer

The answer to the ACCA HVAC Blog May’s Tech Challenge is here! Check out this article to see if you were able to find the answer!

May Tech Challenge — Question

A split air conditioner utilizing R-410A with a TXV feed device (and receiver) has a customer complaint of “warm, no […]

Looking for an ACCA QA Accredited Contractor?

Are you a homeowner or building manager?

BECOME AN ACCA MEMBER

join now

PLUS It's Risk Free!