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Carrier 40MBDAQ - Page 28

Carrier 40MBDAQ
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40MBDAQ: Service Manual
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
28
DIAGNOSIS AND SOLUTION (CONT.)
Ed (Outdoor unit malfunction Diagnosis and Solution)
Description: The indoor unit detects an error with the outdoor unit.
Recommended parts to prepare:
Outdoor unit
Troubleshooting
?
Is the main board
displaying an error?
,
.
WŽǁĞƌŽīƚŚĞŶƌĞƐƚĂƌƚƚŚĞƵŶŝƚ
ϮŵŝŶƵƚĞƐůĂƚĞƌŽĞƐƚŚĞŽƵƚĚŽŽƌŵĂŝŶ
board display an error code a few
ŵŝŶƵƚĞƐůĂƚĞƌ
.
No
Yes
Refer to the prescribed
ƐƚĞƉƐƚŽƌĞƐŽůǀĞƚŚĞŝƐƐƵĞ
Yes

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