Miller dynasty dx 300 that began throwing help code 7, which is too high of voltage. The voltage reads 246 volts coming in to the welder. It keeps blowing diode pack pm2. Any ideas what could be the problem?

Based on the information provided, it seems that there may be an issue with the Remote 14 connection on the Miller Synco Wave 350 DX TIG/arc welder. Here are some steps that can be taken to troubleshoot the issue:

1. Check the Remote 14 connection: Make sure that the Remote 14 connector is securely plugged into the welder. If it is loose or not fully connected, this could cause issues with the pedal not being recognized.

2. Check the pedal connection: Ensure that the pedal is properly connected to the Remote 14 connector. If it is not plugged in all the way or if there is any damage to the cable, this could cause issues with the pedal not being recognized.

3. Check for error codes: The Miller Synco Wave 350 DX TIG/arc welder has a built-in diagnostic system that can display error codes if there is an issue with the machine. Check to see if any error codes are displayed and refer to the user manual for troubleshooting steps.

4. Contact Miller customer support: If none of these steps resolve the issue, it may be necessary to contact Miller customer support for further assistance.

In summary, if your Remote 14 is not reading your pedal on your Miller Synco Wave 350 DX TIG/arc welder, you should check the connections, look for error codes, and contact customer support if necessary.

https://forum.millerwelds.com/forum/welding-discussions/6001-dynasty-dx-%7Bhel%7D-%7Bp10

E5 error on a Miller Blue Star 6000 Electric Start 120V DX, 240V TWLK welding generator could indicate a problem with the generator's voltage regulator. The E5 error code is specific to the Miller welders, and it's not a general error code that could be found on other brands.
The voltage regulator is responsible for controlling the output voltage of the generator to ensure that it stays within a safe range. If the voltage regulator fails or a malfunction, it can cause the generator to produce too much or too little voltage, which can cause the E5 error code to appear.
Here are a few things you can try to fix the problem:

1. Check the voltage output of the generator, and make sure it's within the correct range.
2. Inspect the voltage regulator, and make sure it's not damaged, corroded, or lose connections.
3. Check the wiring going to the voltage regulator, and make sure there are no loose or corroded connections.
4. Check the engine oil level and make sure it's not too low.
5. Check the air filter and make sure it's not clogged.

It's important to check the manual of the welder for troubleshooting steps and also check the warranty of the welder and see if it's still covered by the manufacturer. If you are not able to find the problem or if you are not familiar with welding equipment, it's best to take your welder to a qualified Miller Electric welder repair service center, they will be able to diagnose and fix the issue.

Some welders have a resistor that is obvious and accessible but to give an error code it is likely something else inside. You'll have to look at the circuit board for a component that is burned. If you are lucky you will find a fuse.

On this page enter your serial number and you will be able to download your manualhttp://www.millerwelds.com/service/ownersmanuals.php In the Dynasty 350 manual On Page 76, section 7-4 it says: Help 24 Display Indicates a power supply to the control and interface board PC6 failure. Possible cause is a short in Pin A or Pin B of the remote control. Unplug the remote control and see if it goes away.

I would look at the main contactor for a direct short,also the 50 amp breaker could be weak.

i need your serial number to get correct info...please reply here

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/sean_54c3a3dc48a7773c

That would signify You have a problem with the units main power circuit...the unit will need serviced.

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/sean_54c3a3dc48a7773c

i have a old miller thunderbolt CC*AC/DC welder its wire single phase 480 can it be switched to 220 single phase

From the user manual for a generic dynasty model welder:
2 Help 2 Display
Indicates an open in the thermal protection
circuitry located on the left side of the unit.
Contact a Factory Authorized Service
Agent if this display is shown.

So you could have anything from a broken or disconnected wire to a bad thermal switch.

You can get user manuals specific to your welder at www.millerwelds.com

Rank this answer please,
Carl