honeywell pro series thermostat low battery indicator

#Honeywell pro series thermostat low battery indicator install

Relight pilot flame per furnace manufacturers instructions. If blown or tripped, replace fuse or reset breaker. Honeywell T8090A 191108A thermostat troubleshooting Press and hold the passcode reset switch for ten seconds. Make sure all connections between the communicating devices are good. The Telephone Access Module is not receiving data from the thermo- stats. When I dial into the Telephone Access Module, it indicates “The system is not responding.” Remedy the problem according to the contact manufacturer instructions. The Telephone Access Module detected a contact closure on the auxiliary input terminals.ĭetermine the cause of the contact closure. The auxiliary input indicator is illuminated The telephone module is currently in a dial-in or dial-out sequence. The battery indicator appears to flash momentarily every 10 seconds. The battery indicator is flashing with a steady on-off pulse. The battery is either dead or not installed. The battery indicator is on continuously. Honeywell W series thermostat troubleshooting Wait 5 minutes for the system to restart safely, without damaging the compressor. If “Wait” is displayed, the compressor protection timer is on.Make sure power switch at heating & cooling system is on.Make sure the temperature is set lower than the Inside temperature. Make sure the temperature is set higher than the Inside temperature. Heating or cooling system does not respond If thermostat is not in Emergency Heat mode, an alert is active.It shows that the thermostat is in Emergency Heat mode. If thermostat is in Emergency Heat mode, the red light is normal.Change screen brightness using Preferences menu.If thermostat is battery powered, make sure fresh AA alkaline batteries are installed correctly.Make sure furnace door is closed securely.Make sure power switch at heating and cooling system is on.Check circuit breaker and reset if necessary.Honeywell VisionPRO series thermostat troubleshooting If thermostat is not in Emergency Heat mode, contact a qualified service con- tractor for repair. It shows that the thermostat is in emergency heat mode. If thermostat is in Emergency Heat mode the red light is normal. Make sure fresh AA alkaline batteries are properly installedĬheck Function 0170: System Type to make sure it is set to match your heating and cooling equipmentįan does not turn on when heat is requiredĬheck Function 0180: Heating Fan Control to make sure it is set to match your heating equipment Honeywell YRTH series thermostat troubleshooting Turn switchover adjustment screw to recalibrate pressure for proper switching. Switchover pressure in thermostat is incorrectly calibrated. Readjust compressed airline to proper switching pressure. Thermostat not switching over at changeover pressure Move throttling range adjustment toward MAX position and then recalibrate. Replace restrictor block assembly and/or filter. Inadequate air flow caused by a partially clogged restrictor block assembly and/or filter cartridge. Also ensure that the air supply to the thermostat is dry and clean. Replace the restrictor block assembly and filter.

#Honeywell pro series thermostat low battery indicator install

Install Stiffener Plate 14004609-001 on the backplate. Use a bubble solution to locate the leak and repair it. Stick an adhesive paper dot on the throttling plate as described above.Īir leak in restrictor block and filter assembly. If there is no antihum spring or cone, the adhesive paper dot has fallen off of the throttling plate. Stick an adhesive paper dot on the throttling plate across the hinge between the two rivets so that the dot is directly below the “A' in MAX printed on the bimetal. Reposition spring to touch throttling plate. If there is an antihum spring, it is not touching the throttling plate. Honeywell basic series thermostat troubleshooting