What LO means on your Frigidaire dishwasher (frigidaire lo error)
A frigidaire lo error means the rinse-aid reservoir is low or empty on your Frigidaire dishwasher. It is a refill reminder, not a fault, and helps your dishes dry spot-free. Topping up the dispenser usually clears it.
Symptoms
Use these symptoms to confirm your Frigidaire dishwasher really has this condition rather than a different fault that behaves much the same. A dishwasher can show one clue or a whole cluster of them, and they often appear right after a power interruption, a demanding cycle, a spill, or recent service.
- The LO indicator lights up
- Dishes dry with spots or film
- The alert returns after a few cycles
- The rinse-aid gauge reads empty
Common causes
There is rarely one obvious culprit on a Frigidaire dishwasher, so the possibilities below are sorted from probable to unlikely. Testing them in that order tells you whether your dishwasher needs a small adjustment or a repair with genuine OEM parts from trusted suppliers.
- Empty rinse-aid dispenser — the reservoir needs refilling
- Dispenser cap not closed — the cap is not sealing
- Very low fill level — the reservoir is near empty
- Failed level switch — only if LO stays after refilling (see rA)
Troubleshooting steps you can try
Give these steps a try on your Frigidaire dishwasher in order — the simplest fixes sit near the top. The instant a step involves mains voltage, gas, a hot cavity, water, or a sealed part of the dishwasher, put your tools down and call a qualified technician.
- Open the rinse-aid dispenser and fill it to the indicated line, then close the cap.
- Wipe any spillage so the cap seals.
- Run a cycle to confirm LO clears.
- If LO stays after refilling, the dispenser reed switch may be at fault.
Parts a technician may replace
A technician may look at, test, or replace the rinse-aid dispenser, dispenser cap, and level (reed) switch on your Frigidaire dishwasher, depending on what the diagnosis turns up. The component the dishwasher needs is matched from its model and serial number, and genuine OEM parts come through trusted parts suppliers rather than generic substitutes, protecting performance, safety, and the long working life of the dishwasher. Knowing exactly what failed on the dishwasher before ordering stops the repair spreading beyond the actual fault.
When to call a technician
LO that stays on after the dispenser is full needs a technician to check the rinse-aid level switch. A Low severity rating gives you time with the dishwasher, not a free pass: should LO keep returning after these checks, a technician should confirm the cause on the dishwasher before any part is replaced. We work independently of the manufacturer and are not affiliated with it; your dishwasher is handled by experienced, skilled technicians using genuine OEM parts from trusted parts suppliers, and the work done on the dishwasher is backed by a 30-day labor warranty. Bring the model and serial number of your Frigidaire dishwasher to the booking so the correct part can be matched before anyone travels out and the LO condition cleared in as few trips as possible.
Related help and Frigidaire resources
If the LO condition keeps returning after these checks, book Frigidaire dishwasher repair, browse our dishwasher error-code guides and step-by-step repair guides, or schedule service in your area on our locations page. See also the related rA dispenser fault. If you need the manufacturer specifications for your dishwasher or want to confirm the model, they are at frigidaire.com.
