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York P*HM - User Manual

York P*HM
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FOR DISTRIBUTION USE ONLY - NOT TO BE USED AT POINT OF RETAIL SALE
TECHNICAL GUIDE
MODELS: P*HM, P*DH, P*LB
OIL-FIRED WARM AIR
UPFLOW / HORIZONTAL,
DOWNFLOW / HORIZONTAL AND
LOWBOY FURNACES
80 AFUE
NATURAL GAS
58 - 188 MBH OUTPUT
EFFICIENCY
RATING
CERTIFIED
Heating Air Conditioning
R
036-21475-003 Rev. A (0605)
DESCRIPTION
This is a high end product line for those in the dedicated oil
business or HVAC contractor who demands the best in an oil
furnace. These oil-fired furnaces are decorator-styled warm
air heating units designed for installation in basements, clos-
ets, recreation rooms or garages. The complete line consists
of three types of furnaces with 9 available models. Heating
capacities range from 58 through 188 MBH bonnet output.
All models are designed to accommodate add-on air condi-
tioning. The capacities, cfm's and performance are matched
to meet year-round comfort requirements. After the installa-
tion of an oil-fired furnace, the air conditioner may be added
at any time by adding a compact cooling coil to the furnace,
and a small quiet condensing section outside the home.
WARRANTY
Lifetime limited warranty on heat exchangers to original
owner
10-year limited warranty on heat exchanger when used on
commercial applications
1-year limited warranty on all other parts
FEATURES
Proven circular heat exchanger - 16 gauge all welded
construction on P*HMX and P*LBX
(except P4LBX20F19001)
Hard cast ceramic combustion chamber for proper flame
control and long reliability
Industry standard Beckett “AF” series flame retention
head burner
Industry standard controls and components used
throughout the furnace for easy service and parts avail-
ability
All models are equipped with fan relay for easy add-on
air conditioning (except P4LBX20F19001-heating only)
All units are approved for multiple firing rates for easy
application
Heavy 20 gauge cabinet for strength and quiet operation
Quiet four speed direct drive blower motors on most
models

Questions and Answers

  • A
    Ashley PattersonAug 14, 2025
    What to do if my York Furnace is showing 4 FLASH?
    • E
      ericjohnsonAug 14, 2025
      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.
  • J
    Jacob FarrellAug 17, 2025
    What does 3 FLASH mean on my York P*HM and how to fix it?
    • Y
      ymeyerAug 17, 2025
      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.
  • M
    Megan SmithAug 21, 2025
    Why is my York Furnace showing CONTINUOUS FLASH?
    • K
      Kristie BentleyAug 21, 2025
      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.
  • J
    Jacob AndersonAug 25, 2025
    What does 7 FLASH mean on my York Furnace?
    • H
      hgarciaAug 25, 2025
      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.
  • D
    David MurphyAug 27, 2025
    What does 5 FLASH mean on my York P*HM?
    • E
      Elizabeth JonesAug 28, 2025
      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.
  • L
    Lisa AllenAug 30, 2025
    Why is my York P*HM Furnace showing 8 FLASH?
    • J
      Jose TuckerAug 30, 2025
      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.
  • B
    Billy HernandezSep 3, 2025
    What does 2 FLASH mean on my York P*HM Furnace?
    • L
      lhendersonSep 3, 2025
      If your York Furnace is showing 2 FLASH, it indicates a faulty pressure switch or mis-wiring. Replace the faulty pressure switch.
  • P
    Pamela ReedSep 6, 2025
    What does STEADY ON mean on a York Furnace?
    • G
      gatesamberSep 7, 2025
      If your York Furnace shows a STEADY ON, check the gas valve and control for proper operation.
  • C
    Courtney CrossSep 9, 2025
    What does 11 FLASH mean on my York P*HM?
    • B
      brownjustinSep 9, 2025
      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.

York P*HM Specifications

General IconGeneral
BrandYork
ModelP*HM
CategoryFurnace
LanguageEnglish

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