The KitchenAid refrigerators covered here show few error codes in normal use, mostly messages such as PO, Showroom or a door alarm. The real fault codes sit where owners rarely look: a service test on the control panel and a blinking light on the compressor’s inverter. This guide uses two factory documents: Whirlpool’s troubleshooting guide for KitchenAid KRMF French-door models (KRMF606 and KRMF706) and KitchenAid’s tech sheet for the KBFN506 built-in French-door bottom-freezer. The lists differ, so each section names its models. The KRMF guide also covers Whirlpool WRV976, WRV986 and WRV996 models; for other Whirlpool refrigerators see our Whirlpool refrigerator codes guide.
First, rule out a mode, not a fault
On a KRMF, Refrigeration Cooling is Off on the display means cooling was switched off: lights and display work, fans and compressor do not; the owner’s manual covers switching it back on. Showroom lit on the display means Showroom mode, another cause of no cooling; press and hold LIGHT and LOCK together for three seconds to release it. Cooling, but a dark dispenser panel and no interior lights? That can be Sabbath mode, which also stops the ice maker; press and hold LIGHT and OPTIONS to exit.
On the KBFN, KitchenAid’s tip for a unit that seems to run but does not cool: open the Fridge or Freezer menu and press and hold COOLING OFF for three seconds. If there is no Cooling Off icon, it is in Showroom mode; press and hold FRIDGE and FREEZER for three seconds.
PO and the door alarms
PO (KRMF) means power outage: power was off long enough for the freezer to reach 18°F or higher. The display reads PO, a tone sounds three times, and Confirm blinks until you press Measured Fill. Check the food. If PO keeps returning without an outage, the control is losing power; Whirlpool’s checklist runs from the outlet’s voltage, polarity and grounding to a loose harness, the power supply board or a shorted low-voltage part.
Door alarms. On a KRMF the alarm sounds after a door or drawer has been open for five minutes with cooling on, and repeats every two minutes until everything is closed. A Door Open indicator that stays lit with every door shut is a fault — a door switch, or a shorted left pantry control or its wiring. The KBFN alarm also starts after five minutes and repeats every two. If a KBFN alarm keeps sounding, KitchenAid’s check: open a refrigerator door and press its door switch closed by hand; if the lights stay on, a switch is defective. On some units the switches sit behind the top grille, which is our job.
Ice maker codes E0 to E5 (KRMF)
The KRMF’s refrigerator-side ice maker stores its own code, shown on the dispenser display when a technician runs Whirlpool’s ice maker code test. The guide is blunt: do not unplug the refrigerator before that test — unplugging resets the unit and the code is lost. If the complaint is ice, leave it plugged in.
| Code | What Whirlpool says it means | Usual suspects |
|---|---|---|
| E0 | No errors | — |
| E1 | Ice bin sensor above 45°F for more than 3 hours | The ice box sensor, a cooling problem, blocked air ducts to the ice box, or the ice box fan |
| E2 | Motor lost position | The ice maker’s position switch: a cube jam or the ice maker itself |
| E3 | Heater timeout | The ice mold heater; after six failed harvest attempts the ice maker stops for 24 hours, then tries again |
| E4 | Dry cycle (no fill) | A manufacturing software code that Whirlpool says may never be seen in the field |
| E5 | Timed ice making: ice maker sensor warmer than 16°F while the bin sensor stayed below 45°F for 3 hours | Either sensor, a loose sensor connection, the ice box fan, or a cooling problem |
If the refrigerator-side evaporator is not defrosting, the software shuts down ice production to keep both compartments cold, so missing ice can be the first sign of a defrost problem — see freezer frost buildup. And the basics come first: water supply on, no kinked line, ice maker switched on, filter seated and not clogged, Sabbath mode off. On models with a second ice maker in the freezer, it runs only with the freezer door closed and should make about 56 to 72 cubes in 24 hours. More in ice maker not making ice.
Inverter blink codes (both families)
Both families use a variable-speed compressor run by an inverter with a diagnostic LED, and both documents list the same codes. LED off — no failure found. Two flashes — no 3–6 volt speed signal from the control board, which the KRMF guide says a shorted low-voltage part can cause. Three flashes — inverter failure, though Whirlpool checks the compressor before replacing the inverter. Four flashes — compressor failure (bad windings or a locked compressor), which can also point to a restriction in the sealed system. The KBFN sheet adds a milder reading: the compressor tried to restart too soon after shutting off, so wait ten minutes and try again.
Only a technician reads the LED, but the symptom is easy to spot: both sections warming toward room temperature, fans running, compressor silent. Whirlpool’s instruction for that case is not to unplug the refrigerator. A missing machine-compartment cover is on Whirlpool’s list too: it can let the compressor overheat.
Sensor readouts and the KBFN service menu
On KRMF models, Whirlpool’s sensor tests report 01 pass, 02 open or 03 short for the freezer, refrigerator, ice box, refrigerator evaporator and freezer defrost sensors. The guide also describes an emergency mode: with a sensor far out of range, the refrigerator may cool only one section.
The KBFN has a service menu you can open from the display. With Showroom, Cooling Off and Sabbath modes off, press FREEZER and OPTIONS together for three seconds until it chimes and shows 01. Step 01 is the sensor check — freezer, refrigerator, both evaporators, ambient and onboard — and it shows SH (short circuit) or OP (open circuit) instead of a temperature when a reading is past its limits. It is a technician menu, not a fault log: other steps switch fans and heaters, force a defrost and run the compressor, so do not run them. To leave, KitchenAid advises waiting out the 20-minute time-out.
The ones that mean call today
Warm in both sections, fans running, compressor silent — the inverter or compressor; leave it plugged in. E1 or E5 with warm compartments — Whirlpool lists a cooling problem among the causes. SH, OP, 02 or 03 on a sensor — the control is working from a bad reading. PO with no outage — a power fault between the outlet and the control.
Why we don’t recommend guessing parts
Whirlpool’s KRMF guide is a fault tree, and nearly every symptom has several branches. A KRMF that stops cooling can be a setting, a shorted pantry control, a control board, the inverter, the compressor or a sealed-system restriction. The guide tests first and replaces second, and so do we: we read the codes before anything is unplugged, test live, quote the actual repair, and the diagnostic fee is credited toward it. Sensors, fans, switches, ice makers and boards are worth repairing; a sealed-system failure on an older unit is where we discuss replacement honestly.
KitchenAid refrigerator repair across the Denver Metro
FiXiFY repairs KitchenAid refrigerators, freestanding and built-in, across Denver, Aurora, Lakewood, Westminster and the metro — same-day in most areas, genuine OEM parts. See refrigerator repair, built-in refrigerator repair, or the KitchenAid page.
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FAQ
What does PO mean on a KitchenAid refrigerator?
On KRMF French-door models PO means power outage: the power was off long enough for the freezer to warm to 18 degrees F or higher. Press the Measured Fill button to confirm it, check the food, and call if PO comes back without a real outage.
What do E1, E2 and E3 mean on a KitchenAid ice maker?
On KRMF models E1 means the ice bin sensor has read above 45 degrees F for more than three hours, E2 means the ice maker motor lost its position, which can be a cube jam, and E3 is a mold heater timeout. A technician reads them in a service test, and unplugging the refrigerator first erases the code.
How do I get my KitchenAid refrigerator out of Showroom mode?
On a KBFN built-in, press and hold FRIDGE and FREEZER for three seconds. On a KRMF French-door model, where the display shows Showroom, press and hold LIGHT and LOCK together for three seconds.
Should I unplug my KitchenAid refrigerator to reset an error?
Not before a technician has read it. Whirlpool’s guide says unplugging erases the active ice maker code and tells technicians not to unplug a refrigerator whose inverter light is flashing, so leave it plugged in and write down what the display shows.
FiXiFY Appliance Repair — 7030 E 46th Ave Dr, Unit A, Denver, CO 80216 · (303) 214-1240 · support@fixifycolorado.com