Tech Challenge: Winter 2025
A split air conditioner utilizing R-410A with a TXV feed device (and receiver) has a customer complaint of not cold enough.
Tech Challenge
Tech Challenge: November/December 2024
A residential split A/C system utilizing R-410A with a fixed orifice metering device has a customer complaint of “insufficient cooling.” […]
Tech Challenge: September/October 2024
A commercial rooftop utilizing R-410A with a TXV feed device has a customer complaint of insufficient cooling. The symptoms confirm […]
July/August 2024 ACCA Now Tech Challenge
A frozen food case utilizing HFC R-404A with a TXV metering device (and receiver) has a customer complaint of “warm […]
May/June 2024 Tech Challenge Answer
A medium temperature beverage cooler utilizing R-134a with a TXV metering device and liquid receiver has a customer complaint of […]
March/April 2024 Tech Challenge Answer
A reach-in cooler utilizing R-134a with a capillary tube feed device has a customer complaint of warm product. The symptoms […]
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.
