Quick answer
A PowerFlex 753 that faults stops the motor, and the HIM pops up a flashing screen with the fault code, its text and the time since it happened – for example “Fault Code 3” Power Loss, written F3 in the manual and below. A code with the port number in front comes from an option module (4001 is fault 1 of the module in port 4). Fix the cause, then clear it with the Clear soft key, the Stop key or a power cycle. Resettable codes clear once the cause is fixed; Configurable ones have their response set by their own parameter.
Jump to a code:
Safety first: lock out and tag out the drive and the machine before you open the drive or touch the wiring, and follow Rockwell Automation's procedure in the manual. The drive's DC bus capacitors stay charged after power is removed: the manual says to confirm they have discharged before servicing: on frames 1 to 7, a qualified person verifies zero voltage with a properly rated meter, checking the meter on a known source before and after, from +DC to –DC, then from each of them to the chassis – all three must read zero; larger frames use the DC test point sockets on the power module. A dark display doesn't mean it's safe. Never bypass a safety circuit or switch off a fault to keep a machine running. Only qualified personnel should work on drives, and any measurement on energized equipment follows your site's live-work and arc-flash rules.
Reading and clearing a PowerFlex 753 fault
- Note the code before you clear it. P951 [Last Fault Code] keeps the first fault since the last reset – often the one that started a chain of faults – and the HIM's Diagnostic folder (Faults) has the fault queue.
- Look it up in the table below or in the manual, and fix the cause first – a fault whose cause is still there comes straight back.
- Clear it: press the Clear soft key or Stop (a running drive stops), cycle power, choose Clear in the HIM's Diagnostic folder Faults menu, or use a digital input assigned in P156 [DI Clear Fault].
- Watch the restart. If the same code returns, go back through the checks before resetting again.
The PowerFlex 755 uses the same programming manual and drive fault table. Some codes apply only to certain frames, options or control modes – the manual's table says which.
Common PowerFlex 753 fault codes
This list covers the codes technicians run into most often, not every code. The manual has the complete list and the full corrective actions.
| Code | What it means | Likely causes | First checks |
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| F2Auxiliary InputResettable | The input assigned in P157 [DI Aux Fault] opened: something in the application is not letting the drive run the motor. |
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| F3Power LossConfigurable | The DC bus stayed below its power-loss level for longer than the power-loss time. |
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| F4UnderVoltageConfigurable | P11 [DC Bus Volts] fell below P461 [UnderVltg Level]. |
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| F5OverVoltageResettable | The DC bus voltage went above the drive's maximum (see P11 [DC Bus Volts]). |
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| F7Motor OverloadConfigurable | The drive's electronic motor overload protection tripped. |
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| F8Heatsink OvrTempResettable | The heatsink went above 100% of the drive's temperature rating (around 115 to 120 °C). |
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| F9Trnsistr OvrTempResettable | The output transistors (IGBTs) went above their maximum operating temperature. |
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| F12HW OverCurrentResettable | Output current went past the drive's hardware current limit. |
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| F13Ground FaultResettable | A current path to earth ground of more than 25% of the drive's rating was found. |
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| F15Load LossConfigurable | Torque current stayed below P442 [Load Loss Level] for longer than P443 [Load Loss Time]. |
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| F17Input Phase LossConfigurable | The DC bus ripple went above a preset level. |
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| F21Output PhaseLossConfigurable | Current in one or more output phases was lost, or stayed below P445 [Out PhaseLossLvl] for 1 second. |
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| F24Decel InhibitConfigurable | The drive is not following the commanded deceleration because it is holding the bus voltage down. |
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| F25OverSpeed LimitResettable | Motor speed went past the maximum speed plus P524 [Overspeed Limit]. |
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| F29Analog In LossConfigurable | An analog input lost its signal. |
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| F33AuRsts ExhaustedResettable | The drive used up the attempts in P348 [Auto Rstrt Tries] without clearing the fault. |
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| F36SW OverCurrentResettable | Output current went past the drive's 1 ms current rating, typically 200 to 250% of its continuous rating. |
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| F38 / F39 / F40Phase U to GrndResettable | A phase-to-ground fault was found between the drive and the motor on that phase (U, V or W). |
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| F41 / F42 / F43Phase UV ShortResettable | Excessive current was found between two output terminals (U-V, V-W or W-U). |
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| F48System DefaultedResettable | The drive was told to write its default values. |
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| F64Drive OverLoadResettable | P940 [Drive OL Count] passed 100%: the drive's own overload rating was exceeded (an alarm comes first, above 50%). |
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| F81 / F82 / F83 / F84 / F85 / F86Port 1 DPI LossResettable | A DPI port (the HIM or another device on ports 1 to 6) stopped communicating. |
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| F100Parameter ChksumResettable | The stored parameter checksum did not match, and the data was set to default values. |
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| F211Safety Brd FaultResettable | A safety option module (Safe Torque Off, Safe Speed Monitor or ATEX) reported a fault. |
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| F212Safety Jmpr OutResettable | The SAFETY jumper is not installed and no safety option module is present. |
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| F213Safety Jumper InResettable | The SAFETY jumper is installed while a safety option module is present. |
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The fault text is the short name the HIM shows next to the number. Other drive faults in the same table that this page doesn't cover include: F14, F18, F20, F34, F35, F44–F46, F55, F58, F59, F61, F62, F71–F76, F77, F78, F79, F80, F87, F91, F93, F94–F97, F101–F104, F106–F108, F110–F113, F115–F118, F124, F125, F137, F138, F152, F168, F175, F181, F182, F203, F204, F210, F224–F228 – see the manual for those.
Source: Rockwell Automation, PowerFlex 750-Series AC Drives Programming Manual, publication 750-PM001Q-EN-P (November 2024) – Chapter 6, Troubleshooting: Drive Fault and Alarm Descriptions (Table 10), read on October 17, 2026.
Meanings, causes and checks are summarized in our own words. The manual is the reference: it has every code, the full corrective actions and the safety instructions. A newer revision of the manual may add codes, so check the current revision for your drive.
Allen-Bradley AC drives in stock
We have no PowerFlex 753 in stock right now. These are other Allen-Bradley AC drives on our shelves; for a PowerFlex 753, send us the catalog number and we'll check our sourcing network.
- SD3000Rockwell Automation SD3000 Plus Drive Control SD3K-2004 SER A REV B01 120VAC 2A
- 20AD3P4A0AYNNNNNAllen-Bradley 20AD3P4A0AYNNNNN PowerFlex 70 AC Drive 2HP 480V 3 Phase VFD Ser A
- 1336F-BRF20-AE-ITAllen-Bradley 1336F-BRF20-AE-IT 1336 Plus II Sensorless Vector AC Drive 20HP VFD
- 1336F-BRF20-AEAllen-Bradley 1336F-BRF20-AE 1336 Plus II Sensorless Vector AC Drive 20HP VFD
- 20-COMM-PAllen-Bradley 20-COMM-P Series A PROFIBUS DP Adapter PowerFlex Drive Module
- 20AD3P4A3AYYNDNNAllen-Bradley 20AD3P4A3AYYNDNN PowerFlex 70 VFD 2HP 480V 3.4A with HIM Keypad
- 20D-DL2-ENET0Allen-Bradley 20D-DL2-ENET0 Spare Parts Kit Ethernet Comm Module PowerFlex 700S
- 22A-D6P0N104Allen Bradley 22A-D6P0N104 SER A 3 Phase, 380-480V,48-63Hz
Fault won't clear?
When the checks point to the drive itself – the manual's “replace the drive” or “replace the control module” – send us the fault code and the catalog number from the nameplate. We check our shelves and our sourcing network and reply with a written quote. Purchase orders are welcome; payment is due before we ship.
Frequently asked questions
How do I clear a fault on a PowerFlex 753?
Fix what caused it, then clear it: press the Clear soft key or Stop, cycle power, choose Clear in the HIM's Diagnostic folder Faults menu, or use a digital input assigned in P156 [DI Clear Fault]. A fault comes straight back if its cause is still there.
What do Resettable, Configurable and Non-resettable mean?
A Resettable fault can be cleared once its cause is gone; some can also be retried by auto restart (P348 [Auto Rstrt Tries] and P349 [Auto Rstrt Delay]). A Configurable condition has its response set by its own parameter. A Non-resettable fault normally needs drive or motor repair and clears on power-up after the repair.
Where can I see which faults a PowerFlex 753 had?
P951 [Last Fault Code] holds the first fault since the last reset, which is often the one that started a chain of faults. The full fault queue is in the HIM's Diagnostic folder (Faults) and in drive software.
Do these fault codes apply to the PowerFlex 755?
Yes: the PowerFlex 753 and 755 share the 750-series programming manual and its drive fault table. Some codes apply only to certain frames, options or control modes, so check the manual's notes for your drive.
Can you supply a replacement PowerFlex 753 drive or module?
Send the catalog number from the nameplate and the fault code through our quote form. We check our shelves and our sourcing network and reply with a written quote.