What causes Daikin error E1-00?

Component failure on the PCB. Power surge damage. Manufacturing defect

How do you fix Daikin fault code E1-00?

1. Ensure the unit has a stable power supply. 2. Check for any visible signs of damage on the outdoor unit's control panel. 3. Perform a power cycle reset. 4. Contact Daikin support or a certified technician for PCB diagnosis and replacement.

E1-00

E1-00 — OU: PCB defect

Daikin · ASHP Error Codes

What does E1-00 mean?

The outdoor unit (OU) has a detected defect with its Printed Circuit Board (PCB).

Common Causes

Component failure on the PCB
Power surge damage
Manufacturing defect

Repair Steps & Checklist

Click steps to track your progress.

1
Ensure the unit has a stable power supply.
2
Check for any visible signs of damage on the outdoor unit's control panel.
3
Perform a power cycle reset.
4
Contact Daikin support or a certified technician for PCB diagnosis and replacement.

Browse all codes in this manual (60)

Verified technical data. Last updated: April 2026

Source: Daikin ASHP Error Codes

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E1-00 — OU: PCB defect

What does E1-00 mean?

E1-00 — OU: PCB defect

What does E1-00 mean?

Common Causes

Repair Steps & Checklist

Related Faults