Troubleshooting: NHS003 error guide

The most common causes of an NHS003 error:

The most common cause of an NHS003 error is that you have an existing Health App account that previously used our Classic login method and did not migrate to NHS login.

You will need to apply for NHS login to continue to use the Health App, and all of the features available to you.

If you used a mobile number instead of an email address for your Classic login, please remember that you will need to use an email address when setting up your NHS login.

After the you have applied for an NHS login account or have signed-in with an existing NHS login, all of the Health App features that you could access before will become available again.

If you wish to continue to use the Health App, with the same login details you were using with our Classic login method, the following steps will guide you through this process:

Step 1: Select the blue 'Continue with NHS login' button.



Step 2: You will then be taken to the NHS login screen. Follow the on-screen prompts (provided by NHS login) to sign-in with an existing NHS login account, or register for a new NHS login account. 






Here is more information about migrating your Classic login method:

Classic Login - How to migrate to an NHS login

If you are still seeing an NHS003 error code, any other error code or still having problems with your Health App account, please get in touch with our support team.




Please note:

If you're seeing an NHS003 error after you have migrated your Classic login method to NHS login, are an existing user who has recently applied for NHS login, or if you are newly registered, with an NHS login, you may have previously had a child linked account, linked to your parent/guardian.

This may be the problem, as your adult Health App account, which uses an NHS login method, is conflicting with your old child Health App account, which uses our Classic login method.

Please get in touch with one of our technical support team, who will be able to resolve this issue.




Need to submit a support ticket and speak to one of our team?

Click 'Support' on the top-right-hand-side of the Health App



Select 'Support' at the top of the Mobile Health App




Was this article helpful?
👍 👎