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Hi, my Dyson AM04 fan heater displaying error E4. How to fix it?

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victor Alonso

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Hi, my Dyson AM04 fan heater displaying error E4.

Posted on Feb 20, 2014

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What does e8 mean on the display?

http://www.dyson.co.uk/support/am04/am04-irsbl/my-machine-is-not-working/e1-e5-e6-am04
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Why does cove e8 shows

Hi there, it's Jack at Dyson.

If your Dyson Hot + Cool heater is displaying an E8 error code, the best course of action would be to contact us directly for further help. We'd appreciate the opportunity to take some further details about your particular machine and how it's being used. Additionally, if a replacement is needed, we can confirm if this is covered under your 2-year Dyson warranty.

You can reach us by calling the Dyson Customer Helpline on 0800 298 0298 (UK), 1-866-693-9766 (US), 1-877-397-6622 (CA) or 1800 239 766 (AU). We'll look forward to speaking with you and providing further assistance.
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I am getting an E7 error code on two new AM 04 heater fans what does it mean

E7 error was an engineering code from an old batch of fans and that they had since fixed the problem.sell the old batch
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Dyson fan e3 error

Hi there, it's Jack at Dyson.

If your AM04 is displaying the F3 error code, I would encourage you to contact us directly so we can take some further details. When you have your machine to hand, please call our experts directly on 0800 298 0298 (UK), 1-866-693-9766 (US), 1-877-397-6622 (CA) or 1800 239 766 (AU).

We can take you through some simple troubleshooting checks, and if a repair or replacement is needed, we can confirm if this is covered under our 2-year warranty.

We'll look forward to speaking with you.
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After a few minutes of heating, the machine shuts off and you see E7

Hi there, it's Jack at Dyson.

If your AM04 displays an E7 error code after shutting off unexpectedly, we'd need you to contact our experts directly so we can take some additional details about the issue.

If you can contact us on 0800 298 0298 (UK), 1-866-693-9766 (US), 1-877-397-6622 (CA) or 1800 239 766 (AU), we'd be happy to provide further assistance.
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Erroe message e8 showimng

Hi there, it's Jack at Dyson.

I'm sorry to hear your AM04 is displaying an error code. When you have your machine to hand, please call our experts directly on 0800 298 0298 (UK), 1-866-693-9766 (US), 1-877-397-6622 (CA) or 1800 239 766 (AU).

We can take you through some simple troubleshooting checks, and if a repair or replacement is needed, we can confirm if this is covered under our 2-year warranty.

We'll look forward to speaking with you.
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1answer

Dyson AM04 e3 error message

Hi there, it's Jack at Dyson.

I'm sorry to hear your AM04 is displaying an error code, but we're keen to help you check your machine is working as well as it should be.

When you have your AM04 to hand, please call our experts directly on 0800 298 0298 (UK), 1-866-693-9766 (US), 1-877-397-6622 (CA) or 1800 239 766 (AU).

We can take you through some simple troubleshooting checks, and if a repair or replacement is needed, we can confirm if this is covered under our 2-year warranty.

We'll look forward to speaking with you.
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Cool function stopped after 3 rd time use. error 4 displayed

Hi there, it's Jack at Dyson.

If your AM04 is displaying an error code 4, you should be able to resolve this by turning off the machine and unplugging it from the power supply for 30 seconds.

You should then find that the issue is resolved when you test the machine. If you're still having difficulties after trying this, please get in touch with us directly for some further assistance. If a repair or replacement is needed, we can confirm if this is covered under your machine's 2-year warranty.

You can reach our experts directly on 0800 298 0298 (UK), 1-866-693-9766 (US), 1-877-397-6622 (CA) or 1800 239 766 (AU).
0helpful
2answers

Dyson AM04 error code E4 any suggestions

E4 and E5 codes explained finally! E4 means motor is not spinning right, or reaching correct RPMs. E5 means heater in not working right. I will provide more detains next.
I had an AM05 which stopped working and it was showing E4 fault code and power light was blinking red. Occasionally as I turned it on motor would spin up for a second and then stop and fault code would display. Most of the time motor did not move. WARNING! I am an electrical engineer and have fixed countless things in my life, and I can say, taking this unit apart and putting it back together was very difficult. Do it at your own risk and of course, MAKE SURE POWER IS REMOVED WHEN WORKING ON IT.
First, remove the base ring and remove big screw in the middle. Next, disconnect the plastic white ring connected to the oscillating motor drive shaft. This requires removal of a C-Clip. (don't lose it, as it's likely to fly when being removed). Now pry apart the bottom section from the rest. Be careful as there are connecting wires all still there. Next, tilt the fan forward all the way and that will expose 4 screws in the rear, and when tilted the other was, two screws in the front. Remove them all. Now, disconnect connectors and start separating parts. Here are a couple of pictures I had taken.6da61f48-67d1-449b-a6d2-72e4af5aae9c.jpgdyson-am04-error-code-e4-any-suggestions-4e2m4lzwxx0at01yzka4mbe1-2-2.jpg
Of the two identical 6 or 7 pin connectors one has all red wires and the other is multicolor. When I disconnected the red one, the fault code went to E5. The red one goes to another board that has the heater circuit, so I deducted that E5 means either connections to the heater are bad, or heater is bad. I reconnected the red one and E4 came back. I disconnected the multicolor one and nothing happened, which told me the problem is there. I traced the wires and they were all going to the motor, which is further up the assembly. Getting to it was a real pain. To free the multicolor cable, you have to separate two rubber seals that allow the wires to move through an opening. If you can manage this, you can slowly get to the motor. When I turned the impeller I noticed that it was dragging, which explained the E4 code. When I turned it upside down motor spun freely and the fault code went away. So, I knew I had to fix the dragging problem, which was easy. Then putting it back together was a real pain. I recommend taking lots of pictures to remember what came from where. NOTE: There is thermal grease inter a metal heat sink. Make sure you don't wipe it off. It's essential, or heater semiconductors will overheat and fail. Also, MAKE SURE WIRES AT THE BOTTOM SECTION NEAR THE SWIVEL MECHANISM ARE DRESSED AS THEY WORE ORIGINALLY! Otherwise, they will rub and cam cause a fire. As you probably already know, there was a recall on these.
Anyway, hope this helps people. I have gotten so many great tips off the internet, I figured I had to contribute some as well.
God Bless.
0helpful
1answer

Heater won't work

Hi there, it's Jack at Dyson.

AM04 has an intelligent thermostat which you can set to the degree. The machine will then monitor the room temperature and cycle on and off as needed to maintain the temperature you've chosen. If the heater doesn't seem to be running, it may be because the temperature you've selected is below the current room temperature. When the room temperature drops below the temperature you've picked, the heater should come on.

For additional troubleshooting to check your machine is working correctly, you might like to visit our Support page:

http://www.dyson.co.uk/support/am04/am04-whsil

I hope this helps, but if you'd like any further advice, please give us a call. Our Helpline numbers are 0800 298 0298 (UK), or 1-866-693-9766 (US).

Best wishes,

Jack
Dyson Online Customer Support
http://www.dyson.com
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