Variable-Speed Pump Repair & Installation
Variable-speed pump repair and installation
A variable-speed pump is a motor with a computer attached. That makes it cheaper to run and gives it more ways to fail than the single-speed pumps it replaced.
$120 diagnostic, credited toward your repair · set pricing on many common repairs and installations
What is different about a variable-speed pump
Two things, and both matter for diagnosis.
It has a drive. The electronics that vary motor speed are a component in their own right, and they fail in their own ways — heat, moisture, power quality, age. A single-speed pump either runs or does not. A variable-speed pump can run badly.
It tells you something is wrong. Most display a code. That is genuinely useful, and it is also where a lot of bad advice comes from, because the same code string means different things across manufacturers and product lines.
About error codes
We will not guess at a code. Not on this page, and not on the phone.
Codes are specific to the manufacturer and often to the product line. Interpreting one from the wrong manual is how a homeowner ends up buying a part that was fine. What we do instead is bring the correct documentation for your model and read the code against what the equipment is actually doing.
We are building verified, brand-specific code references from manufacturer documentation. When one is published here, it will be because we checked it — not because it sounded right.
If you have a code now: photograph the display, photograph the equipment it belongs to, and start the diagnostic. Both of those get this moving faster than any description.
Problems we see on variable-speed pumps
- Display dead, pump dead — power, or the drive
- Code on the display — needs the right documentation, not a guess
- Runs, but flow is poor — programming, a restriction, or the drive limiting output
- Won't hold a schedule — programming, a lost configuration after a power event, or automation
- Noisy at certain speeds — sometimes normal resonance, sometimes not
- Shuts down when it gets hot — protection working; the question is why
Programming is not always a fault
A pump running eight hours at a speed that turns the water over properly is doing its job. A pump programmed to run at a speed that saves power but does not move enough water produces a cloudy pool and a service call that is really a settings conversation.
We would rather have that conversation than replace something.
Upgrading from a single-speed pump
This is the upgrade that most reliably pays for itself, and the reason is not the motor — it is that a variable-speed pump can run slowly for a long time instead of quickly for a short one. Moving the same water more slowly costs disproportionately less energy.
What decides whether it suits your pool:
- The electrical supply. Most single-speed installations can feed a variable-speed pump, but not all, and it is worth confirming rather than assuming.
- The plumbing. Undersized pipework limits how much benefit the low speeds can deliver.
- What else is on the pad. A heater or a salt system needs a minimum flow to operate, which sets a floor on how slowly the pump can usefully run.
- Whether anything controls it. Automation and a variable-speed pump are much more useful together than separately.
We will tell you what your pad supports. We do not put a savings figure on this page, because the honest answer depends on your rates and your current run time, and a number invented for a web page is worth nothing to you.
Related
Pool pump repair · Pool equipment diagnostics · Pool pump keeps shutting off
Set prices
- Pump installation$225 labor
Labor prices don’t include the pump, filter or parts, which are quoted with the job. You hear the full price before any work starts. Not sure what’s wrong? That’s the $120 diagnostic, credited toward your repair if you go ahead.
Why homeowners call us
You approve the price first
Whether we are diagnosing a fault or doing a job you already know you need, you hear the price before any work starts. Nothing is replaced until you have approved it.
Pool equipment is all we work on
Pumps, motors, filters, salt systems, automation and the plumbing at the pad. The technician who diagnoses it is the one who fixes it.
Upfront pricing
Not sure what's wrong? A $120 diagnostic finds it, and the $120 is credited toward your repair if you go ahead. Many common repairs and installations have a set price instead.
Questions we get asked
My pump is showing an error code. What does it mean?
We don't publish code meanings we haven't verified against the manufacturer's own documentation, because a code read from the wrong manual sends you after the wrong part. Send us the code and the model and we'll bring the right documentation.
Is a variable-speed pump worth repairing?
Usually yes — they cost more than the single-speed pumps they replaced, and a drive fault is often a repair rather than a replacement. The exception is a unit old enough that parts are no longer made.
Why does mine run slower than it used to?
Could be programming, could be a restriction the pump is working against, could be the drive limiting itself. Those look identical from the deck and different at the pad.
Tell us what it’s doing.
A few questions is usually enough to tell a five-minute fix from a real repair.


