But like other equipment and appliances, they are not immune to issues that can come about from their use. Some people may also have difficulties with setup, and thus limiting the ability to utilize the units to the maximum potential. In this troubleshooting and how-to guide, learn how to perform various functions on York furnaces and the steps to follow to fix some of the common issues with these units.
How to Troubleshoot York Furnace
York electric furnace
If there is no heat or cooling, check the following:
Check thermostat for proper settings. Make sure you set thermostat to proper setting.Check circuit breakers and fuses. Reset circuit breakers if tripped and/or replace blown fuses.Check outdoor unit for dirty coil (Cooling). Clean coil if dirty.Check outdoor unit for snow accumulation (Heating). Remove loose snow only if there is snow accumulation.Check indoor unit for dirty filter (Heating and Cooling). Clean or replace filter as necessary.Check emergency heat light status on thermostat. If light is on or flashing, there is a malfunction. Troubleshoot the fault code as necessary.
If wet on floor or in the furnace:
Check the condensate drain and “P” trap. If blocked, remove the blockage.
If the fan does not start running:
Check the fuses or circuit breakers for the furnace and heat pump. Reset tripped breaker and/or replace blown fuses.If fan still doesn’t come on, the fan relay, furnace control board, blower motor, or control transformer could be the problem. Troubleshoot as necessary.
If air coming out of the vents is cool:
Check the heat sequencer, limit control, control board, element, and wire connections. If any of these is the problem, troubleshoot and/or replace as necessary.
If the temperature rise is less than the recommended minimum:
Check to make sure all the elements are operating.
If the temperature rise is higher than the recommended maximum:
Check the blower motor for proper operation. If the blower motor is operating properly, then the speed may need to be increased.
York gas furnace
Before troubleshooting, perform the following visual checks:
Check to see that the power to the furnace and the ignition control module is ON.The manual shut-off valves in the gas line to the furnace must be open.Make sure all wiring connections are secure.Review the sequence of operation. Start the system by setting the thermostat above the room temperature. Observe the system’s response. Then troubleshoot the fault codes as required to check the system’s operation.
York Gas Furnace Maintenance Tips
Performing maintenance procedures on your furnace helps ensure it runs efficiently, and for many years. Below are some basic, preventative maintenance procedures you can perform on your York gas furnace to help keep it running at its best:
Confirm the furnace completes a normal cycle from start-up to shutdown. Look at thermostat reading to confirm the system shuts off when reaching the high temperature set point, if the furnace shuts off before reaching the high set point, it is likely having a short cycling problem and requires service.Clean dust or move objects away from the grates that supply air into each room and also remember to keep the large return grate clear and clean, as well.Clear obstacles from the furnace and safety switch on the furnace door.Check the vent connections in the exhaust pipe and chimney for rust or gaps.Make sure your carbon monoxide monitor has fresh batteries and is operating properly.Replace furnace filters annually.
How Do I Reset My York Furnace?
The York Diamond 80 furnace doesn’t have a reset button. But, you can reset the furnace from your electrical service panel. To reset a York Diamond 80 furnace, follow these steps:
York Furnace is Not Turning On
There could be several reasons why your York Furnace is not turning on. To troubleshoot, consider the following:
Check to ensure the power for your furnace is turned on.At the thermostat, turn the fan to ON. The fan should run when power is being supplied to the furnace.Circuit breakers in the circuit breaker box (or electrical panel) may have tripped to the OFF position. Check for tripped circuit breakers and reset them.Check the SSU light switch on the gray box located on the furnace to make sure it is in the ON position.
York Furnace Troubleshooting Codes, Meaning, and Fixes
York furnace error codes are seen in three colors; red, green, and amber/yellow. Each color will also flash a specific number of times to indicate a specific error. Below is a list of the error codes, their meaning and what to do to troubleshoot and fix the problem.
Where is the Pressure Switch on a York Furnace?
On a York gas furnace, the pressure switch is mounted on the draft inducer. This switch monitors the flow through the vent system. The switch will close at the beginning of each cycle when adequate combustion airflow is established. However, the pressure switch may be open under certain conditions when the burners are lit. The pressure sensor is the primary flow sensor.
Where is the Filter on My York Furnace (and How to Change it)
Regularly changing air filters will guarantee long-term efficiency for your York furnace. Doing so will ensure that your unit’s internal components, like the blower motor and the pressure tubing, continue to function at their best. The filter is usually located near where the cool air enters the furnace in the cold air return duct or the entrance to the blower chamber or sometimes in both locations. To change the filter on your furnace, follow these instructions:
How to Clean a York Furnace
It is important to clean your furnace regularly. A dirty furnace burns higher amounts of electricity and/or gas fuel as well as work less effectively than a clean furnace. There are three basic parts of your furnace that can be impacted by the presence of dirt:
The filter systemThe blowerThe heat exchanger
To clean your York furnace effectively, follow this guide:
Cleaning the filter
Cleaning the blower assembly
When cleaning the wheel, make sure you do not remove the clip on weight on the indoor fan wheel. This weight is used to balance the wheel. Moving the weight will cause the wheel to vibrate.
Cleaning the heat exchanger blockUnplug all power connections running to your furnace, and making sure the furnace is turned off.Clear any dirt off of the block. Use a brush to loosen the black build-up off each chamber of the block. You may also use a damp cloth to remove the build-up.Vacuum the block assembly to ensure that all the debris you loosened off of the assembly is removed.Plug the furnace back in and turn it on once you have finished cleaning and vacuuming the heat exchanger block.Coil cleaning
If the coil needs to be cleaned, it can be washed with water.
What Does Control Failure Mean on York Furnace?
A steady on red flash code indicates control failure. This could mean there is 24 volts present without 120 volts. It could also indicate the control board is faulty. To troubleshoot, check that there is 24 volts and 120 volts supplied to the board. If so, then the board should be replaced. To test the power coming into your control board: To test the power in your transformer:
What Does the Limit Switch Do on a York Furnace?
The limit switch on a York furnace serves as a high temperature limit control. The switch will open and shuts off gas to the burners if it detects excessive air temperature in the furnace, which can be caused by any of the following: On a York gas furnace, the limit switch is normally mounted to the left side of the furnace vestibule panel.
York Natural Gas Furnace is Blowing Cold Air When Switch is off
If your furnace is blowing cold air, a dirty filter could be the culprit. A dirty air filter blocks airflow over the furnace’s heat exchanger, causing it to overheat. When overheating, the furnace can trip a high limit switch, causing the furnace burners to shut off. To troubleshoot, turn off your furnace at the thermostat and check the filter. If it is dirty, change it. If you have an older furnace with a standing pilot light and the pilot light is not lit, then the furnace burners won’t light, meaning no heat. Try relighting the pilot light following these steps: A blocked condensate line can also be the problem. If there is water pooling around the furnace, the furnace’s condensate line may be blocked. If the line gets blocked, water (condensate) backs up into the furnace, causing an overflow kill switch to shut down the furnace to prevent water damage.
How to Change Blower Motor Speed on York Furnace
Follow the instructions below to adjust fan control settings on a York furnace YP9C:
Cooling
You can adjust the airflow delivered by the furnace during cooling operation to match the cooling capacity of the A/C condensing unit. To do this, move the COOL and ADJ jumper on the control board to give desired air flow. The COOL jumper has four positions, which will deliver the airflow in cooling mode. The ADJ jumper has three positions which can be used to make further adjustments to the cooling blower airflow.
Continuous fan operation
You can adjust the airflow delivered by the furnace during continuous fan operation as desired. To do this, move the control fan jumper on the control board to give the desired airflow. The jumper has three positions:
The “H” position delivers maximum airflow, 100% of the blower capacity. Position “M” delivers approximately 70% of the blower capacity.Position “L” delivers minimum airflow, approximately 40% of the blower capacity.
How to Tell Manufacture Date of a York Furnace
To know the manufacture date of a York furnace, go to the outdoor cabinet of the heat pump. Look on the back side, the side facing toward the house, and you should find a nameplate. The nameplate has a list of manufacture’s specifications on it. At the top of the nameplate, you should see the manufacture’s date like a month and year.
