Trane TAYSTAT 540 Manuel d'utilisateur télécharger pdf (Page 21)

21

Pub. No. 22-5185-01

69-1229

TROUBLESHOOTING GUIDE

(Contiuned)

Symptom Possible Cause Action

Display will not

come on.

Thermostat is not

being powered.

Check if the thermostat is mounted and

latched on the wallplate–mount and latch the

thermostat on the wallplate.

Check if the circuit breaker is tripped–reset

the circuit breaker.

Check if the fuse is blown–replace the fuse.

Check if the system switch is in the Off

position–set to Heat or Cool.

Temperature

settings will not

change (Example:

cannot set the

heating higher or the

cooling lower).

The upper or lower

temperature limits

were reached.

Check that the temperature setpoints are

within range:

Heating: 50° to 99° F (10° to 37° C)

Cooling: 50° to 99° F (10° to 37° C).

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