10
System Operation Check —
Once the installation
and pre-start checks are completed, follow these steps:
1. Using remote controller, select cooling or heating mode
to check the operation of the system.
2. While the system is in operation, check the following on
indoor unit:
a. Switches or buttons on the remote controller are easy to
push.
b. Indicator light is showing normal operation and no er-
ror is indicated.
c. Swing mode of air louvers is working (if applicable to
unit).
d. Drain pump operation is normal (if applicable).
e. No abnormal vibration or noise is noticed.
3. While the system is in operation, check the following on
outdoor unit:
a. No abnormal vibration or noise is noticed.
b. Condenser fan is in operation.
c. Indicator light is showing normal operation and no er-
ror is indicated.
NOTE: If the unit is turned off or restarted, there is a time
delay of 3 minutes for the compressor to start from the time the
power is restored.
MAINTENANCE
EVERY 3 MONTHS:
• Check the air filter condition. Clean or replace if neces-
sary.
EVERY 6 MONTHS — Follow 3-month maintenance sched-
ule. In addition:
• Clean condensate tray with suitable cleaning agent.
• Clean the grille and panel if applicable.
EVERY 12 MONTHS — Follow 6-month maintenance
schedule. In addition:
• Be sure all electrical connections are secure.
• Check condensate pump operation if applicable.
• Check the heating and cooling action to confirm proper
operation.
TROUBLESHOOTING
Figure 14 shows the LED display panel on the indoor unit.
See Table 3 for a summary of display indicators. Table 4 lists
problems, possible causes, and possible solutions.
Replacement Parts —
Quote the unit model number
and unit serial number when ordering replacement parts or
contacting the factory about the unit. This information can be
found on the serial plate attached to the unit. See Fig. 15.
TUBE/PIPE
A40-1854
Fig. 13 — Tube/Pipe Insert
CAUTION
When servicing or repairing this unit, use only factory-
approved service replacement parts. Refer to the rating
plate on the unit for complete unit model number, serial
number and company address. Any substitution of parts or
controls not approved by the factory will be at the owner’s
risk and may result in equipment damage.
CAUTION
To avoid equipment damage, do not attempt to reuse any
mechanical or electrical controllers that have been wet.
Replace defective controller.
MANUAL OPERATION TIMER DEF./FAN ALARM
a40-1873
Fig. 14 — LED Display Panel
40WAD007---3
1
60
208/230
0.34
32
1/6
2115V20001
Carrier Corporation
Carrier Corporation
7310 West Morris Street
7310 West Morris Street
Indianapolis, IN 46231 USA
Indianapolis, IN 46231 USA
CONCEALED UNIT
a40-1874
Fig. 15 — Unit Serial Plate (Example)
