Honeywell chronotherm iii t8611m 사용자 설명서

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68-0076—1
Troubleshooting
HEAT PUMP OR AUXILIARY HEAT 
WON'T OPERATE
NO ac POWER TO  THERMOSTAT
CHECK POWER TO HEAT PUMP OR 
AUXILIARY HEATING SYSTEM
–ON-OFF SWITCH
–FUSE OR CIRCUIT BREAKER
–LOOSE 24 V CONNECTION
  -AT THERMOSTAT
  -AT HEAT PUMP OR AUXILIARY HEATING SYSTEM
–INCORRECT WIRING
 
 -CHECK WIRING DIAGRAM
THERMOSTAT INOPERATIVE
CONDUCT SELF-TEST; SEE CHECKOUT.
PRESENT SETTING TOO LOW/HIGH
ADJUST TEMPERATURE BY PUSHING WARMER/COOLER 
KEYS.
SYSTEM SWITCH ON  THERMOSTAT IN 
WRONG POSITION
RESET THERMOSTAT SYSTEM SWITCH.
MINIMUM-OFF TIMES IN  THERMOSTAT IN 
OPERATION  ON COOLING OR HEATING
WAIT 5-10 MIN. OR USE SELF-TEST IN THERMOSTAT.  
SEE CHECKOUT.
INCORRECT WIRING
CHECK CIRCUIT DIAGRAM.
HEAT PUMP OR AUXILIARY HEAT SYSTEM 
INOPERATIVE
CONSULT HEAT PUMP/AUXILIARY HEAT SYSTEM 
INSTRUCTIONS.
S YMPTOM
POS S IBLE  C AU S E
AC TION
PARTIAL DISPLAY
INOPERATIVE THERMOSTAT
REPLACE THERMOSTAT.
NO DISPLAY
NO POWER TO THERMOSTAT
CHECK THAT HEAT OR COOL SYSTEM POWER IS ON.
THERMOSTAT IN SELF-TEST MODE
PRESS RUN PROGRAM KEY TWICE.
THERMOSTAT MOUNTED INCORRECTLY 
ON BASE
SEE INSTALLATION INSTRUCTIONS FOR CORRECT 
MOUNTING.
PRESENT SETTING  APPEARS 
INACCURATE
THERMOSTAT IS IN  RECOVERY MODE
ROOM TEMPERATURE IS NOT WHAT 
IS EXPECTED ON  WEEKENDS
THERMOSTAT NOT PROGRAMMED FOR 
WEEKENDS
REPROGRAM FOR WEEKENDS PER INSTRUCTIONS.
THERMOSTAT TEMPERATURE 
NEEDS TO BE ADJUSTED ON A 
REGULAR BASIS
WARMER/COOLER KEYS  BEING USED 
TO ADJUST TEMPERATURE
REPROGRAM THERMOSTAT TO MAKE  PERMANENT 
CHANGE IN PROGRAM.  WARMER/ COOLER KEYS ARE 
TEMPORARY UNLESS  PERIOD KEY IS PRESSED FIRST.
PROGRAM IS LOST DUE TO POWER 
OUTAGE OR DISPLAY GOES BLANK 
WHEN POWER IS TURNED OFF
BATTERIES ARE  INCORRECTLY INSTALLED
REMOVE AND REPLACE PER MARKINGS ON  THERMOSTAT.
BATTERIES ARE DEAD
REPLACE BATTERIES.
DISPLAY FLASHES WHILE
PROGRAMMING
IMPROPER PROGRAM  SEQUENCE
CHECK HOMEOWNERS MANUAL FOR CORRECT PROGRAM 
SEQUENCE.
AUTOMATIC CHANGEOVER  THERMOSTAT 
HEATING OR  COOLING TEMPERATURES 
CAN  NOT BE SET CLOSER THAN 3°F
SET HEATING AND COOLING TEMPERATURES 3°F OR 
MORE APART.
DISPLAY FLASHES DURING 
OPERATION
PROGRAMMING HAS BEEN  LOST BECAUSE OF 
A POWER OUTAGE
REPROGRAM ACCORDING TO PROGRAMMING  
INSTRUCTIONS (MAKE SURE BATTERIES ARE INSTALLED).
NORMAL OPERATION THERMOSTAT TURNS ON 
HEATING/COOLING EARLY TO MEET TEMPERATURE 
SETTING AT PROGRAMMED TIMES.
RECOVERY CAN BE ENDED BY PUSHING 
WARMER/COOLER KEYS.
M1020A
ROOM TEMPERATURE DISPLAY 
APPEARS INACCURATE
THERMOSTAT HAS SEPARATE REMOTE-
MOUNTED SENSOR

THERMOSTAT IS CONTROLLED BY TEMPERATURE SENSED 
AT REMOTE SENSOR LOCATION.
CHECK TEMPERATURE AT REMOTE SENSOR LOCATION.
MAKE SURE WIRING FROM THERMOSTAT LOCATION TO 
REMOTE SENSOR LOCATION IS IN GOOD CONDITION.
Start the system by setting the thermostat and observing system response. If problem occurs, establish symptom and use
the following troubleshooting chart to check for possible cause and action.
T8611M
TROUBLESHOOTING