Honeywell Thermostat Th9421C1004 Battery Replacement. Make sure the battery polarity matches the markings on the battery compartment. Direct replacement parts for the yth9421c1002 honeywell thermostat:
Honeywell Thermostat Th9421c1004 Battery Replacement from maintenance-items.blogspot.com
The honeywell prestige iaq is a very close match to your honeywell iaq. Check to see that everything is working. Pull the cover plate straight off the wall to disengage it from the wall plate.
Use The Scroll Buttons To Move To Reset.
Direct replacement parts for the yth9421c1002 honeywell thermostat: Unless the panel is pressed in perfectly, the screen will not turn on. Confirm your thermostat is on.
Deep 116 Mm High X 152 Mm Wide X 32 Mm Deep:
This thermostat contains a lithium battery which may contain perchlorate material. Honeywell vision pro iaq thermostat provides electronic control of 24 vac heating and cooling systems in addition to humidification, dehumidification and. Switch the system to off.
Make Sure The Battery Polarity Matches The Markings On The Battery Compartment.
Wide x 1 1/4 in. Press the latch down and slide the battery compartment out. Besides, it’s possible to examine each page of the guide singly by using the scroll bar.
Turn The Cover Plate Over And Remove The Two Aaa Batteries.
Can cause electrical shock or equipment damage. Deep dimensions (mm) 116 mm high x 152 mm wide x 32 mm deep includes thermostat only used with thm5421c1008 equipment interface module comments To remove the cover plate, place your fingers at the bottom of the thermostat and pull.
Replace Both The Aa Batteries With New Ones.
Honeywell th9421c1004 vision pro iaq thermostat features 7 day programming and is designed for up to 3 heat/2 cool conventional systems and up to 4 heat/2 cool heat pumps. Please enter 5 or 9 numbers for the zip code. My thermostat screen is blank and the unit is not working.
