Written by
Maren Coleman Appliance Care EditorPublished October 29, 2026
VERIFIED
Error codeHI, LO
ApplianceRefrigerator
An undercounter Whirlpool refrigerator that displays HI or LO is showing an error code. The listing offers no explanation of the cause; it supplies a reset and a short follow-up.
Do this
Turn the breaker off, or unplug the unit, for one (1) minute.
Turn the breaker on or plug the unit back in.
For one (1) minute after power returns, monitor the refrigerator to confirm the code does not return.
Then verify that the refrigerator operates.
Still showing HI or LO
If the code remains after those steps, arrange a technician visit.
Other indicators
The refrigerator family has two more signals you may meet: H2O Light – Refrigerator for the water filter light, and PO for a power outage.
Undercounter refrigerator repair in San Francisco
For a Whirlpool undercounter unit that holds onto HI or LO, we can visit homes in San Francisco and the Bay Area; see Whirlpool refrigerator repair and phone (415) 687-4102. Share the code, the model number and the reset you carried out.
Model compatibility: Whirlpool reuses codes across series and model years, so HI, LO may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
HI or LO is an undercounter refrigerator display code that has no stated cause and is answered by a power cycle.
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Seeing this code on your Whirlpool appliance?
Book a specialist visit for a clear estimate and approval before any repair.
Troubleshooting and repair for the Whirlpool WH31S1E compact refrigerator in San Francisco apartments and secondary units, from warm food to dripping water…
You submit a request with your appliance model and symptom, we confirm an appointment window, and a technician performs an on-site diagnosis. You then receive a clear estimate and decide whether to proceed before any repair begins.
Yes. We provide an upfront estimate after diagnosis. No parts are ordered or installed until you approve the work, so there are no surprise charges.
Replacement parts are selected for the exact model and confirmed with you before ordering or installation.
Service areas are listed on the Locations page. Contact us with your ZIP code to confirm current coverage for your address.
Ready to get your Whirlpool appliance working again?
Book a repair online or call us — clear estimates and approval before any repair work begins.
