Model reference

York P*XU

Furnace

1 document8 error codes

Available documentation

Service Manual

User's Information, Maintenance and Service Manual16 pg
Covers this model

MyPros+ Max

Diagnose your York P*XU.

Step-by-step diagnostics from the service manual
Test values, resistance specs, and wiring references
Verified part numbers when replacement is needed

Start diagnosing

$29/month · Cancel anytime · Or $9.95 3-day pass

M+

M+ Max·York Furnace

1 Flash on my York P*XU

M+

Flame sensed without a call for heat.

From Service Manual 916184, p.36:

1.Access service mode to confirm the active fault code and read stored error history.

2.Measure control board supply voltage at test points. Expected: 12 VDC and 5 VDC.

3.Inspect all connectors on the main control for corrosion or backed-out pins.

Part WPW10804018

Electronic control board

Error codes (8)

CodeMeaning

1 FlashFlame sensed without a call for heat.2 FlashLow fire pressure switch (1LP) contacts are stuck in the closed position…3 FlashFlame rectification could not be established (applies to both 1st stage and 2nd…4 FlashOpen limit circuit (includes Primary Limit, Auxiliary Limit, and Rollout…6 Flash1LP has opened five times during one call for heat.7 FlashFlame rectification could not be established; flame rectification must be…8 FlashFlame rectification has been lost 5 times during 1 call for heat after it was…LED on constantlyThe control discovered an internal fault during its self-check procedure; all…

Related York furnace models

78,000+ service manuals · 160,000+ error codes · 55+ brands

$29/month · Cancel anytime · Or $9.95 3-day pass