Troubleshooting - Carrier 40MBFAQ Owner's Manual

40MBFAQ: Owner's Manual

TROUBLESHOOTING

Refer to Table 3 before contacting your local dealer.
Clean Air Filter*
Replace Carbon Filter
Change Remote Control Batteries
Clean Outdoor Coil from Outside
Clean Outdoor Coil from Inside†
Blow Air Over Electric Parts†
Check Electric Connection Tightening†
Clean Fan Wheel†
Check Fan Tightening†
Clean Drain Pans†
* Increase frequency in dusty zones.
†
Maintenance to be carried out by qualified service personnel. Refer to the Installation Manual.
Common Problems
PROBLEM
Unit/System Does Not Work
Unit stops during operation
* Diagnostic lights are a combination of lights that will illuminate in the display area on the unit. They are a combination of the lights you see during normal operation.
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Table 2 — Periodic Maintenance
INDOOR UNIT
OUTDOOR UNIT
Table 3 — Common Problems
POSSIBLE CAUSE
The circuit breaker has tripped or a fuse has
blown.
Power failure
Diagnostic lights illuminate.*
Voltage is too low.
The OFF timer is not operating correctly.
Diagnostic lights illuminate
EVERY MONTH
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EVERY MONTH
Reset the circuit breaker or replace the fuse with the specified
replacement fuse.
Restart the operation when the power is restored.
Call your service representative
Call your service representative.
Restart the operating mode.
Call a service representative for service
15
EVERY 6 MONTHS EVERY YEAR
EVERY 6 MONTHS EVERY YEAR
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SOLUTION
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