Carrier R-22 Application Manual And Service Manual page 52

COMPRESSOR
WILL NOT RUN
CONTACT CONTACTOR
OPEN CLOSED
DEFECTIVE LOW-
COMPRESSOR
VOLTAGE
POWER SUPPLY
TRANSFORMER
REMOTE
CONTROL
LOOSE LEADS AT
CENTER
COMPRESSOR
DEFECTIVE
CONTACTOR
FAULTY START
COIL OPEN OR
GEAR (1-PH)
SHORTED
OPEN INDOOR COMPRESSOR
THERMOSTAT STUCK
COMPRESSOR
LIQUID-LINE
INTERNAL
PRESSURE
OVERLOAD
SWITCH OPEN
OPEN
OPEN SHORTED
OR GROUNDED
LOSS OF
CHARGE COMPRESSOR
WINDINGS
OPEN CONTROL DEFECTIVE RUN
CIRCUIT CAPACITOR
Copyright 2000 CARRIER Corp. • 7310 W. Morris St. • Indianapolis, IN 46231
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Book 1 1 4 4
PC 101
Tab 3a 5a 2a 5a
HEAT PUMP
TROUBLESHOOTING–HEATING CYCLE
NO HEATING OR
INSUFFICIENT
COMPRESSOR
RUNS BUT
CYCLES ON
INTERNAL
OVERLOAD
DIRTY FILTERS
OR INDOOR
COIL
INDOOR FAN
STOPPED OR
CYCLING ON
OVERLOAD
DAMAGED
REVERSING
VALVE
RESTRICTION IN
DISCHARGE LINE
OVERCHARGE
OR NON-
CONDENSABLES
IN SYSTEM
LOW
REFRIGERANT
CHARGE
LINE VOLTAGE
TOO HIGH OR
LOW
DEFECTIVE RUN
CAPACITOR
(1-PH)
COMPRESSOR
BEARINGS
HIGH-LOAD
CONDITION
REVERSING
VALVE JAMMED
IN MIDPOSITION
HIGH
SUPERHEAT
Fig. 56—Heat-Pump Troubleshooting Chart — Heating Cycle
Catalog No. 563-732 Printed in U.S.A.
HEATING
LOW SUCTION
LOW HEAD
DEFECTIVE FAN
OUTDOOR FAN
MOTOR
STOPPED
CAPACITOR
LOOSE LEADS LOOSE LEADS
AT AT OUTDOOR
FAN MOTOR FAN MOTOR
FAN MOTOR INTERNAL FAN
BURNED MOTOR KLIXON
OUT OPEN
FAN MOTOR
BURNED OUT
DEFROST RELAY
N.C. CONTACTS
OPEN ON
CIRCUIT BOARD
FAN MOTOR
CONTACTS
WELDED CLOSED
IN DEFROST
RELAY
REVERSING
VALVE DID NOT
SHIFT
UNIT NOT
PROPERLY
CHARGED
Form 38-10SM
COMPRESSOR
RUNS
INSUFFICIENT
HEATING
STRIP HEATERS
NOT OPERATING
OUTDOOR
OUTDOOR FAN
THERMOSTAT
RUNNING
DEFECTIVE
REVERSING ODT SETTING
VALVE STUCK TOO LOW
CAP TUBE
PINCHED OR
RESTRICTED
BULB NOT
LIQUID LINE
SENSING TRUE
STRIP HEATER
PISTON
RELAY OR
RESTRICTED OR
CONTACTOR
IS CLOGGED
DEFECTIVE
OPENING IN
POWER CIRCUIT
UNDER-
TO HEATER
CHARGED
ELEMENTS
OUTDOOR COIL BROKEN FUSE
DIRTY
BROKEN
STRAINER
HEATER
RESTRICTED
ELEMENT
OPEN (KLIXON)
OUTDOOR COIL
HEAVILY
TEMPERATURE
FROSTED
THERMOSTAT
DEFECTIVE
DEFECTIVE
DEFROST THERMOSTAT
THERMOSTAT (2ND STAGE)
DEFROST
THERMOSTAT IN
POOR PHYSICAL
CONTACT WITH
TUBE
DEFECTIVE
CIRCUIT BOARD
BAD ELECTRICAL
CONNECTION
ANYWHERE IN
DEFROST
CIRCUIT
Pg 52 11-00 Replaces: 38-1SM, 38-16XA
ODT
LINK
OVER
ROOM
A90206
3810sm