To Next PageTo Next PageWhat to do if my York P*DH Furnace is showing 4 FLASH?
If your York Furnace is showing 4 FLASH, it could be due to a dirty filter, improperly sized duct system, incorrect blower speed setting, incorrect firing rate, or a faulty blower motor. To resolve this, clean or replace the filter, check the duct size, adjust the blower speed, check the firing rate, or replace the blower motor as needed.
What does 3 FLASH mean on my York P*DH and how to fix it?
If your York Furnace shows 3 FLASH, the possible causes are a faulty inducer, a blocked vent pipe, a broken pressure switch hose, or a faulty pressure switch. You should inspect and rectify each of these potential issues.
Why is my York P*DH showing CONTINUOUS FLASH?
A York Furnace showing a CONTINUOUS FLASH indicates a gas valve that leaks or is slow to close. Check the gas valve and control for proper operation.
What does 7 FLASH mean on my York Furnace?
If your York Furnace displays 7 FLASH, this may be due to low gas pressure, a faulty gas valve, a faulty hot surface ignitor, or a burner problem. Inspect and repair any of the mentioned components.
What does 5 FLASH mean on my York P*DH Furnace?
If your York Furnace is showing 5 FLASH, it indicates a primary heat exchanger failure or burner problem. Check for proper combustion air and inducer operation, and manually reset the rollout switch after correcting any failures.
Why is my York Furnace showing 8 FLASH?
If your York Furnace is showing 8 FLASH, it could be due to low gas pressure or a faulty gas valve. Inspect the gas supply and valve.
What does 2 FLASH mean on my York P*DH Furnace?
If your York Furnace is showing 2 FLASH, it indicates a faulty pressure switch or mis-wiring. Replace the faulty pressure switch.
What does STEADY ON mean on a York Furnace?
If your York Furnace shows a STEADY ON, check the gas valve and control for proper operation.
What does 11 FLASH mean on my York P*DH?
If your York Furnace displays 11 FLASH, it means an improper ground is present. Verify that the unit is properly grounded, and if the fault persists, replace the control.
Provides an overview of the furnace's design, intended applications, and general operational parameters.
Explains the different types of advisory messages used throughout the manual to ensure safety and proper installation.
Outlines installation restrictions, model approvals, and preferred locations for the furnace.
Recommends minimum clearances around the unit for proper servicing and maintenance access.
Provides guidance for installations in areas that may experience temperatures below freezing.
Instructions for connecting the supply plenum and return duct for upflow configurations.
Details for cooling coil transition, filters, and plenum for downflow/horizontal setups.
Specifies the required gas pressure for natural gas and propane operation.
Describes how to measure and adjust the gas pressure to the burners.
Details the procedures for making the main electrical power connection to the unit.
Explains wiring for the thermostat, accessories, and internal control circuits.
Details on connecting electronic air cleaners, humidifiers, and other accessories.
Guidelines for a two-pipe system using outdoor air for combustion and venting.
Instructions for a single-pipe system using ambient air for combustion.
Procedures for a two-pipe system drawing combustion air from a ventilated attic.
Specifies requirements for terminating 2-pipe venting systems.
Details minimum clearances for vent terminal installations.
Explains the function of pressure switches monitoring airflow and venting.
Describes the high-temperature limit control for over-temperature protection.
Details the step-by-step process for furnace ignition and blower operation.
Guides on measuring and verifying the gas input rate for natural gas.
Describes the furnace's operational sequence for heating and cooling modes.
Instructions for cleaning and maintaining the blower motor and wheel.
Explains how to interpret fault codes indicated by the control module's LED.
Lists and describes various fault codes related to the ignition control system.
Provides the electrical wiring diagram for upflow furnace models.
Provides the electrical wiring diagram for downflow/horizontal furnace models.
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