Lennox Dave Lennox Signature Collection XC15 User Manual

Page 22
506044−01 06/08
Status LED
Condition
Status LED Troubleshooting InformationStatus LED Description
Yellow Flash Code 3
Short Cycling − Compressor is
running only briefly
1
Thermostat demand signal is intermittent.
2
Time delay relay or control board is defective.
3
If high pressure switch is present, see Flash Code 2 information.
Yellow Flash Code 4 Locked Rotor
1
Run capacitor has failed.
2
Low line voltage (contact utility if voltage at disconnect is low).
S Check wiring connections
3
Excessive liquid refrigerant in the compressor.
4
Compressor bearings are seized.
Yellow Flash Code 5 Open Circuit
1
Outdoor unit power disconnect is open.
2
Unit circuit breaker or fuse(s) is open.
3
Unit contactor has failed to close.
S Check compressor contactor wiring and connectors
S Check for compressor contactor failure (burned, pitted or open)
S Check wiring and connectors between supply and compressor
S Check for low pilot voltage at compressor contactor coil
4
High pressure switch is open and requires manual reset.
5
Open circuit in compressor supply wiring or connections.
6
Unusually long compressor protector reset time due to extreme ambient tempera-
ture.
7
Compressor windings are damaged.
S Check compressor motor winding resistance
Yellow Flash Code 6
Open Start Circuit − Current
only in run circuit
1
Run capacitor has failed.
2
Open circuit in compressor start wiring or connections.
S Check wiring and connectors between supply and the compressor S" terminal
3
Compressor start winding is damaged.
S Check compressor motor winding resistance
Yellow Flash Code 7
Open Run Circuit − Current only
in start circuit
1
Open circuit in compressor start wiring or connections.
S Check wiring and connectors between supply and the compressor R" terminal
2
Compressor start winding is damaged.
S Check compressor motor winding resistance
Yellow Flash Code 8
Welded Contactor −
Compressor always runs
1
Compressor contactor failed to open.
2
Thermostat demand signal not connected to module.
Yellow Flash Code 9
Low Voltage − Control circuit
<17VAC
1
Control circuit transformer is overloaded.
2
Low line voltage (contact utility if voltage at disconnect is low).
S Check wiring connections
NOTE − Last code will display for 1 minute when power is cycled to module. Power must be on to module for a minimum of 1 minute for code to clear.
Maintenance
WARNING
Electric shock hazard. Can cause
injury or death. Before attempting to
perform any service or maintenance,
turn the electrical power to unit OFF at
disconnect switch(es). Unit may have
multiple power supplies.
WARNING
Improper installation, adjustment, alteration,
service or maintenance can cause personal injury,
loss of life, or damage to property.
Installation and service must be performed by a
licensed professional installer (or equivalent) or a
service agency.
At the beginning of each cooling season, check the system
as follows:
NOTE − Outdoor fan motor is prelubricated and sealed. No
further lubrication is needed.
1. Clean and inspect the outdoor coil. The coil may be
flushed with a water hose. Ensure the power is turned
off before you clean the coil.
2. Check connecting lines and coils for signs of oil leaks.
3. Check wiring for loose connections.
4. Check for correct voltage at unit (unit operating).
5. Check amp−draw outdoor fan motor:
UNIT NAMEPLATE: _________ ACTUAL: __________
NOTE − If owner reports insufficient cooling, the unit should
be gauged and refrigerant charge checked.
INDOOR COIL
1. Clean coil, if necessary.
2. Check connecting lines and coils for signs of oil leaks.
3. Check condensate line and clean, if necessary.

Lennox Dave Lennox Signature Collection XC15 Specifications

General

Brand	Lennox
Model	Dave Lennox Signature Collection XC15
Category	Air Conditioner
Language	English