22
POSSIBLE CAUSE
VERIFICATION
SOLUTION
Thermostat Not Level
Check level of thermostat
If necessary, level thermostat.
Defective Thermostat
With volt meter, check resistance of
If resistance, thermostat is O.K.
thermostat contacts.
If no resistance, replace thermostat.
Loose Low Voltage Wiring
Check all wiring connections for
Tighten all loose connections.
tightness.
Defective Low Voltage Transformer
Check transformer as described on
If defective, replace transformer.
page 25 in this manual.
Inadequate Electrical Service
Check electrical service against
Replace electrical service with
minimum requirements.
adequately sized service.
Flash Code - 1 Flash (Float Switch)
Check drain plan and condensate trap. Clean condensate trap.
CONDITION: ESP-G UNIT & CONDENSING UNIT WILL NOT START
POSSIBLE CAUSE
VERIFICATION
SOLUTION
Shorted Or Broken Wiring
Check wiring.
If necessary, repair or replace wiring.
Loose Low or High Voltage Wiring
Check all wiring connections for
Tighten all loose connections.
tightness.
Defective Blower Motor
Check motor as described on page 25
If defective, replace motor.
in this manual.
CONDITION: ESP-G UNIT WILL NOT START, BUT CONDENSING UNIT RUNS
POSSIBLE CAUSE
VERIFICATION
SOLUTION
Defective Thermostat
With volt meter, check resistance of
If resistance, thermostat is O.K.
thermostat contacts.
If no resistance, replace thermostat.
Loose Low Or High Voltage Wiring
Check all wiring connections for
Tighten all loose connections.
tightness.
If no voltage, check coil for ice. If
ice is present, check air filter, return
air duct & blower motor for air flow.
Flash Code - 2 Flashes
With volt meter, check for 24v
(Anti-Frost Switch)
at terminal “AFS”.
If no ice on coil, check anti-frost
switch for continuity. If no
continuity, replace switch.
If 24v, switches are O.K.
Shorted Or Broken Wiring
Check wiring.
If necessary, repair or replace wiring.
Condensing Unit
Check according to manufacturer’s
Repair or replace as directed by
instructions.
manufacturer.
CONDITION: ESP-G UNIT RUNS, BUT CONDENSING UNIT WILL NOT START
Содержание ESP-G SYSTEM
Страница 10: ...10 FIGURE 2 9 FIGURE 2 8...
Страница 13: ...FIGURE 2 13 WIRING DIAGRAM 13...