In this troubleshooting situation, the equipment is a gas pack, and the resident has called for service because the building “isn’t warm at all.”

In this troubleshooting situation, you are dealing with equipment that has only been in operation for two months.

In this puzzle, a restaurant manager complains that one of the ice machines in his high-volume establishment isn’t producing enough ice.

In this troubleshooting situation, you have been called to a restaurant to check an older model ice machine that isn't working like it should.

This month’s troubleshooting situation involves an air-to-air, package unit heat pump that is approximately nine years old.

In this month’s troubleshooting problem, the equipment is a reach-in food and beverage storage unit.

In this month’s troubleshooting problem, the equipment is a split system that’s approximately 8 years old.

In this troubleshooting situation, a technician has responded to a complaint of “not cooling” on a six-year-old R-410A split system.

The service history of this unit includes several electrical repairs, and in one instance, a leak in the sealed system was found and repaired.

In this month’s troubleshooting situation, a customer has called for service, reporting that their heating system isn’t working.