Trane 350, 340 manual Troubleshooting Contiuned Symptom Possible Cause Action

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. 22-5183-01

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