Daikin A6 and A7 Error Codes: Causes, Fixes & Troubleshooting

If you want to understand how these errors compare to others, see the full Daikin error code guide.

What is Daikin A6 error

The A6 error code indicates a fan motor failure in the indoor unit.

This means the system cannot properly circulate air, which leads to:

• poor cooling
• overheating
• system shutdown

Without airflow, the AC cannot function correctly.

What is Daikin A7 error

The A7 error code refers to a louver (air direction flap) motor issue.

This affects:

• airflow direction
• air distribution

It is less critical than A6, but still impacts performance.

Key difference between A6 and A7

Code	Problem	Severity
A6	Fan motor failure	High
A7	Louver motor issue	Medium

A6 stops airflow.
A7 reduces airflow control.

What causes A6 & A7 errors

A6 (fan motor)

• Motor failure
• Worn bearings
• Electrical fault
• Dust buildup restricting movement

A7 (louver motor)

• Mechanical blockage
• Broken flap mechanism
• Small motor failure
• Dirt or debris

Symptoms of A6 and A7

A6 symptoms

• No airflow from unit
• AC runs but no cooling
• Unusual noise or silence

A7 symptoms

• Air not changing direction
• Flaps stuck in one position
• Clicking sounds

How to fix Daikin A6 error

Step 1: Turn off the unit

Always start safely.

Step 2: Check airflow blockage

• Dust buildup
• Obstructions inside unit

Step 3: Listen to the fan

• No sound → motor failure
• Weak airflow → motor issue

Step 4: Call technician

A6 almost always requires:

• motor repair
• or replacement

How to fix Daikin A7 error

Step 1: Inspect louvers

• Check if stuck
• Look for visible blockage

Step 2: Reset system

Sometimes motor desync causes the issue.

Step 3: Gently adjust flaps

Only if accessible and safe.

Step 4: Replace motor if needed

Replace the motor if needed.

Repair cost for A6 and A7

Problem	Cost
Fan motor repair	$300–$700
Fan motor replacement	$400–$900
Louver motor fix	$150–$400
Full airflow repair	$300–$800

When to call a technician

Call immediately if:

• No airflow (A6)
• Unit overheats
• Error returns after reset
• Mechanical noise persists