Rheem ARL-JEZ 16 Seer Series, Installation Instructions Manual, Page: 27 / 40

27
SYMPTOMS POSSIBLE CAUSE CHECK OR REMEDIES
Short cycling of compressor (cont.) Low charge Check system charge
Low evaporator air flow Dirty coil
Dirty filter
Duct too small or restricted
Faulty run capacitor Replace
Faulty internal overload Replace compressor
ELECTRICAL
(See Control Diagnostics)
SYMPTOMS POSSIBLE CAUSE CHECK OR REMEDIES
No voltage on line side Blown fuses or tripped circuit breaker Check for short in wiring or unit
of control board
Improper wiring Re-check wiring diagram
Improper voltage High voltage Wrong unit
Power supply problem
Low voltage Wrong unit
Power supply problem
Wiring undersized
Loose connections
CONTAMINATION
SYMPTOMS POSSIBLE CAUSE CHECK OR REMEDIES
Moisture Poor evacuation on installation In each case, the cure is the same.
or during service Recover refrigerant. Add filter drier,
evacuate and re-charge
High head pressure Non-condensibles air
Unusual head and suction readings Wrong refrigerant
Foreign Matter-
copper filings
Copper tubing cuttings
Copper oxide Dirty copper piping
Welding scale Nitrogen not used
Soldering flux Adding flux before seating
copper part way
Excess soft solder Wrong solder material
CONTINUED