Bryant 619PHA Series User Manual

22 Specifications subject to change without notice. SM619PHA-03
ERROR DIAGNOSIS AND TROUBLESHOOTING WITHOUT ERROR CODE (continued)
Table 13 — Field Maintenance
Field Maintenance Refrigerant Circuit
Possible causes
of trouble
Compressor
stuck
Refrigerant
Shortage
Restricted
liquid line
Dry air filter
Dirty
evaporator
coil
Insufficient
air
through
evaporator
coil
Refrigerant
overcharge
Dirty or
partially
blocked
condenser
Air or non-
condensible
gas in
refrigerant
cycle
Short
cycling of
condensing
air
High temp.
condensing
medium
Insufficient
condensing
medium
Broken
compressor
internal
parts
Insufficient
compressor
Expansion
valve
obstructed
Expansion
valve or
capillary
tube closed
completely
Leaking
power
element on
expansion
valve
Power
installation
of feeler
bulb
Unit will not start
Compressor will not
start however the
fan runs
☆
Compressor and
condenser (outdoor)
fan will not start
Evaporator (indoor)
fan will not start
Condenser (out-
door) fan will not
start
Unit runs but
shortly stops
☆ ☆ ☆ ☆ ☆ ☆
Compress or short
cycles due to
overload
☆ ☆ ☆
High discharge
pressure
☆ ☆ ☆ ☆ ☆ ☆
Low discharge
pressure
☆ ☆
High suction
pressure
☆ ☆ ☆
Low suction
pressure
☆ ☆ ☆ ☆ ☆ ☆ ☆ ☆
Unit runs
continuously but
insufficient cooling
☆ ☆ ☆ ☆ ☆ ☆ ☆ ☆ ☆
Too cool
Compressor is noisy
☆ ☆
Horizontal louver
can not revolve
Test method /
remedy
Replace the
compressor
Leak test
Replace the
restricted
part
Clean or
replace
Clean coil Check fan
Change
charged
refrigerant
volume
Clean
condenser
or remove
obstacle
Purge,
evacuate
and
recharge
Remove
obstruction
to air flow
Remove
obstruction
in air or
water flow
Remove
obstruction
in air or
water flow
Replace
compressor
Test
compressor
efficiency
Replace
valve
Replace
valve
Replace
valve
Fix feeler
bulb

Bryant 619PHA Series Specifications

General

Brand	Bryant
Model	619PHA Series
Category	Air Handlers
Language	English