HVAC Questions? Ask an HVAC Expert for Answers ASAP
Hello, My name is XXXXX XXXXX I will do my best to help you today.
If the ambient temperature on the stat(the one telling you what the temperature inside the house is) seems to be dropping and not coming up to meet the demand temperature you set it at then you have a furnace problem not a thermostat problem
When you turn the thermostat to heat and turn the setting up beyond the ambient temperature does the system come on and blow heat?
OK. I am confused because my other honey thermostat on the other side of the house reaches the set temperature and runs correctly.
What now? Call an HVAC technician to the house?
Do you have a zone system where both these thermostats run the same furnace?
or do you have a furnace for each thermostat?
Good point. 2 different furnaces, 2 different thermostats.
okay. if you like we can see if it is something simple
I just need you to go to the furnace and tell me what it is doing. A model number on the furnace would be helpful as well
Is this gas?
yes gas. going up to attic to check
What I need you to do is turn the thermostat to heat then turn the temperature up. Go to the furnace and take both doors of the furnace off. When you take the bottom door of the furnace off this disengages the door safety switch and cuts power to the unit. With your finger hold the door safety switch in and observe what the furnace does or doesn't do in this sequence.
Inducer draft motor comes on(small one hooked to the exhaust pipe), pressure switch pulls in, igniter energizes, burners come on, flame is sensed, blower comes on.
I am going to have to disagree with you. WHen I remove the thermostat unit from the wall, the temperature indicator on the thermostat is all over the place, A different ambient thermometer in the same location registers 10 degrees lower or hiigher than the thermostat
The number on the left is jumping all over? not staying on a set temperature?
That is correct. I am in a different room with the thermostat AND had a diferent ambient thermometer that is accurate and the thermostat thermometer now reads 5 degrees higher thant the actual ambient temp.
I appreciate your time and effort. I will hit the ACCEPT button. I need to head to work. I will work on this late. THanks for the time and effort.
It coudl be the internal thermostat is bad but if the setting on the right is higher than the setting on the left the furnace still should come on regardless of that fact that the setting on the left is right or wrong all the thermsotat knows is that you want it warmer than what it says.