Control board, display and electrical fault codes
28 codes across 6 brands, from Breville / Sage, Jura, GE, Samsung and more.

What these parts do
The control board runs everything else, and the display, keypad, door switches, fans and power supply are the parts it depends on.
How they fail
Communication errors between boards, a keypad or touch panel the board cannot read, a door or lock switch that never reports closed, or a supply voltage outside range. These are often wiring or connector faults before they are board faults.
Safe checks first
- Power cycle: unplug for five minutes and restart. Communication faults sometimes clear.
- Check the mains outlet and cord. Low or unstable supply voltage causes odd codes.
- Inspect visible connectors and harnesses for looseness or moisture. Do not open mains-powered electronics unless you are qualified.
- A code that returns immediately after a power cycle usually means a part needs replacing.
Appliances carry mains voltage. Unplug before opening anything, and stop where a code's own page tells you to.
Every code, easiest fix first
| Code | Machine | Part at fault | DIY | Severity |
|---|---|---|---|---|
PF | GE dishwasher | mains supply | easy | low |
IH / 1H | GE dishwasher | Delay Start indicator | easy | low |
E1 | GE dryer | door switch | easy | low |
E7 | GE dryer | power supply | easy | medium |
E14 | GE dryer | control panel | easy | low |
Blinking lights | Nespresso Vertuo | varies by pattern | easy | low |
C-d0 | Samsung range and wall oven | control panel membrane | easy | low |
888 | GE dishwasher | main control board | moderate | high |
E8 | GE dryer | motor tachometer and harness | moderate | medium |
SE | Samsung range and wall oven | control panel membrane / keypad | moderate | low |
E-0E / FL | Samsung range and wall oven | door lock motor and switch | moderate | medium |
E11 | GE dryer | drive motor | hard | medium |
Error 8 | Jura | brew unit, drive motor and position sensing | hard | medium |
LE | Samsung range and wall oven | control board transformer / connectors | hard | medium |
E-54 | Samsung range and wall oven | oven / cooktop boards and harness | hard | high |
E-55 | Samsung range and wall oven | touch panel and oven board | hard | high |
cE-56 | Samsung range and wall oven | control board | hard | high |
tE | Samsung range and wall oven | touch panel | hard | medium |
ot | Samsung range and wall oven | cooktop board | hard | high |
C-F2 | Samsung range and wall oven | cooling fan and its feedback circuit | hard | medium |
ER15 | Breville / Sage Barista Touch | control board ribbon cable / boards | not recommended | high |
ER18 | Breville / Sage Barista Touch | mains electrical / triac board | not recommended | high |
ER28 | Breville / Sage Oracle Touch | control board ribbon cable / boards | not recommended | high |
E9 | Breville / Sage Oracle Jet | mains electrical / triac board | not recommended | high |
E15 | Breville / Sage Oracle Jet | mains electrical / triac board | not recommended | high |
E19 | Breville / Sage Oracle Jet | mains electrical / triac board | not recommended | high |
F77 | Miele CM / CVA | valve / control electronics | not recommended | high |
bo / bs | Samsung range and wall oven | induction inverter board | not recommended | high |
By brand
Breville / Sage: ER15, ER18, ER28, E9, E15, E19
GE Appliances: 888, PF, IH / 1H, E1, E7, E8, E11, E14
Samsung: SE, C-d0, E-0E / FL, LE, E-54, E-55, cE-56, tE, ot, bo / bs, C-F2
Questions
How many codes involve boards, panels and electrical?
We cover 28 codes on boards, panels and electrical across 6 brands (Breville / Sage, Jura, GE, Samsung, Nespresso, Miele).
Can I fix these myself?
By our ratings, 7 are easy, 4 moderate and 17 hard. The cheap checks above clear a share of the easy and moderate ones; the hard ones usually need a part replaced.
Are any of these dangerous?
13 of the 28 are rated high severity, mostly where a heater or mains-powered part is involved. Stop using the machine and follow the stop advice on the code's page.