Bedienungsanleitung Honeywell CT2400 (Seite 13 von 14) (Englisch)

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Troubleshooting Guide

IF...

Display will not come on.

Temperature display will not go lower

than 45° F

r“

C] or higher than 88° F

[31

during programming.

Temperature change occurs at the

wrong times.

Heating will not come on.

THEN...

Set the system switch to

OFF. Remove batteries.

Insert batteries backward for

at least five seconds to

reset thermostat. Replace batteries correctly. Display

should come on.

Make sure batteries are fresh and installed correctly.

Gently clean battery contacts using a soft pencil

eraser. Do not use anything abrasive on clips.

You have reached the temperature setting limit.

The setting range is 45° F to 88°F [7°Cto310 C].

Check the program times for the period in

question. Be sure that AM and PM indications

are correct. Make sure the current day and time are

correct. Reprogram if necessary.

Check that switch on thermostat is set to HEAT.

Heating will not come on (continued).

Cooling will not come on.

The house is too warm or too cool.

SYSTEM ON indicator is lit, but no

heat is coming from the registers.

■

(

Check the system fuse or circuit breaker and replace

or reset if necessary.

Check for correct wiring and good connections.

Jumper wires R and W. If heat does not come on,

contact your heating dealer.

If display is blank or says “bAt Lo,” install fresh

batteries.

If temperature setting is higher than current tempera-

ture, and SYSTEM ON indicator is lit, contact

Honeywell Customer Assistance at 1-800-468-1502.

Check that switch on thermostat is set to COOL.

Check the system fuse or circuit breaker and replace

or reset if necessary.

Check for correct wiring and good connections.

Jumper wires

and Y. If cooling does not come on,

contact your cooling dealer.

If display is blank or says “bAt Lo,” install fresh

batteries.

The thermostat has a built-in time delay on cooling.

Allow five to ten minutes after changing the setting

before the air conditioner starts.

Make sure outdoor disconnect is engaged (on).

If temperature setting is lower than current tempera-

ture, and SYSTEM ON indicator is lit, move system

switch from COOL to OFF for ten minutes. After ten

minutes, return switch to COOL position. If air

conditioner comes on, compressor may have reached

its high limit temperature protection and shut down. If

air conditioner does not come on after the ten minutes

and the SYSTEM ON indicator is lit, contact Honey-

well Consumer Assistance at 1-800-468-1502.

If 2- or 4-wire installation,

verify that R-Rc jumper is

installed.

Press RUN PROGRAM key to check the current

temperature setting.

f desired, change the temperature setting. See

)age

14.

Wow

time for the furnace to heat up and the fan to

:ome

on before checking for heat at the register.

Check

to make sure system on-time is set

:orrectly

according to pages 16 and 17.)

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Honeywell CT2400 Seite 13

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