7.5 HP Phase Converter
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A few quick questions so we can assist you better
đĄ Quick Check
A humming converter that won't start usually means:
- Low voltage - Wire may be too small or the run is too long for your distance
- Weak service - Your electrical service may not be strong enough to start the converter
- Starting under load - Make sure all equipment is OFF before starting the converter (including transformers)
- Loose connections - Check that all wire connections are good and tight
đĄ Quick Check
Strange noises or vibration can be caused by:
- Fused contactor - The two pole contactor may be fused together
- Voltage drop - Your single phase line voltage may be dropping
- Wiring issue - The motor may be connected wrong
đē Watch this video to see how to check:
âļ Watch on YouTubeWhen does the breaker trip?
đĄ Instant Trip - Quick Check
If the breaker trips instantly, either:
- Breaker is too small - Converter needs a larger breaker for startup surge
- Wrong breaker type - It's not rated for a motor load (needs an overload type breaker)
- Direct short - You have a direct short somewhere in the wiring
đĄ Delayed Trip - Quick Check
If the breaker trips after a second or more:
- Check motor connections - Make sure you have the motor connected properly
- Do not use wire nuts - Use proper terminal connections instead
- Check your voltage - See if your single phase line is dropping below 215 volts
đē Watch this video to see how to check:
âļ Watch on YouTubeđ Installation Resources
Have you checked our installation guides?
âšī¸ Note
We can provide limited support for other brands. For the best help, we recommend contacting your unit's manufacturer. However, we're happy to answer general questions!
đ Where to Find It
Your order info can be found in:
- Your order confirmation email
- Packing slip that came with your order
- Credit card or bank statement
Don't worry if you can't find it - we can look it up!







