Johnson Controls TP8C/TPLC*MP, YP8C/YPLC*MP Section X Replacement Parts List, Fabricated Parts

DIAGNOSTIC FAULT CODE STORAGE AND RETRIEVAL

The control in this furnace is equipped with memory that will store up to five error codes to allow a service technician to diagnose problems more easily. This memory will be retained even if power to the furnace is lost. Only a qualified service technician should use this feature.

The control stores up to five separate error codes. If more than five error codes have occurred since the last reset, only the five most recent will be retained. The furnace control board has a button, labeled "LAST ERROR" that is used to retrieve error codes. This function will only work if there are no active thermostat signals. So any call for heating, cooling or continuous fan must be terminated before attempting to retrieve error codes.

To retrieve the error codes, push the LAST ERROR button. The LED on the control will then flash the error codes that are in memory, starting with the most recent. There will be a two-second pause between each flash code. After the error codes have all been displayed, the LED will resume the normal slow green flash after a five second pause. To repeat the series of error codes, push the button again.

If there are no error codes in memory, the LED will flash two green flashes. To clear the memory, push the LAST ERROR button and hold it for more than five seconds. The LED will flash three green flashes when the memory has been cleared, then will resume the normal slow green flash after a five-second pause.

SECTION X: REPLACEMENT PARTS LIST

DESCRIPTION

MOTOR

MOTOR, DIRECT DRIVE BLOWER

BLOWER, COMBUSTION

ELECTRICAL

CAPACITOR, RUN

SWITCH, LIMIT

CONTROL, FURNACE

IGNITER

SENSOR, FLAME

SWITCH, PRESSURE

SWITCH, DOOR

TRANSFORMER

VALVE, GAS

CONTROL, TEMPERATURE

SENSOR, PRESSURE

SENSOR, THERMISTOR

AIR MOVING

HOUSING, BLOWER

WHEEL, BLOWER

FABRICATED PARTS

BAFFLE, FLUE

BURNER, MAIN GAS

BRACKET, IGNITER

SHELF, BLOWER

RAIL, BLOWER (2 Req’d)

DESCRIPTION

FABRICATED PARTS Continued

BRACKET, BLOWER TRACK (2 Req’d)

HEAT EXCHANGER ASS’Y

MANIFOLD, GAS

PAN, BOTTOM

PANEL, TOP

PANEL, DOOR (2 Req’d)

VENT PAN, COMBUSTION (w/Gasket)

PANEL, BLOCKOFF

LO-NOX SCREEN (L-Models Only)

MISCELLANEOUS

ORIFICE, BURNER (Natural #45)

SIGHT GLASS, OVAL (2 Req’d)

GASKET, FOAM (Door) (1.5 ft req’d)

GASKET, INTAKE PAN

PLUG, VENT HOLE

BRACKET, DOOR

WIRING HARNESS

FERRULE (3 Req’d)

GROMMET (3 Req’d)

MOTOR MOUNT

HOSE ASSY, VACUUM

PLUG, ID (Control Board)

KNOB, QUARTER TURN (4 Req’d)

UNION

DIAGRAM, WIRING