Diagnosis And Solution; Indoor Pcb X; Outdoor Pcb - Carrier 40MBAB Series Service Manual

Air handler unit ductless system

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40MBAB: Service Manual

DIAGNOSIS AND SOLUTION

EH00 - EEPROM Parameter Error Diagnosis and Solution

Description: Indoor or outdoor PCB main chip does not receive feedback from the EEPROM chip.

Recommended parts to prepare:

• Indoor PCB

Troubleshooting and Repair:

Shut o the power and turn it on 2

minutes later.

Is it s

displaying the

The unit is opera ng normally.

error code?

Yes

Replace the indoor main PCB (EH 00)/

outdoor main PCB (EC 51)

NOTE: The priority is EH00 followed by EC51.

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

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