American Standard 340 manual Troubleshooting Contiuned Symptom Possible Cause Action

Troubleshooting (Contiuned)

Symptom	Possible Cause	Action
Heating will not	No power to the	Check that the setpoint is above room
come on.	thermostat.	temperature–reset temperature or wait for
	System selection is	room temperature to fall.
	not set to Heat.	Check if the circuit breaker is tripped–reset
	Heating setpoint is	the circuit breaker.
	below room	Check if the fuse is blown–replace the fuse.
	temperature.	Check if the system switch at the equipment
		is in the Off position–set to Heat position.
		Wait five minutes for the system to respond.
Cooling will not	No power to the	Check that the setpoint is below room
come on.	thermostat.	temperature–reset temperature or wait for
	System selection is	room temperature to rise.
	not set to Cool.	Check if the circuit breaker is tripped–reset
	Cooling setpoint is	the circuit breaker.
	above room	Check if the fuse is blown–replace the fuse.
	temperature.	Check if the system switch at the equipment
		is in the Off position–set to Cool position.
		Wait five minutes for the system to respond.

	Pub. No. 12-5026-01
21	69-1609