Spent a whole Tuesday chasing a ghost voltage on a washing machine board

Last Tuesday I had this Frigidaire washer that kept throwing an E23 error. I spent about 4 hours checking every solder joint and trace on the control board. Turned out it was a cracked resistor near the relay driver that looked fine until I hit it with a freeze spray. The voltage was dropping just enough under load to trigger the fault. I replaced a 10 cent part and it fired right up. Customer was happy but I lost half a day on one stupid resistor. Has anyone else dealt with these intermittent E23 codes on Frigidaire boards?

2 comments

2 Comments

jade73814d ago

Freeze spray is the trick. Found a cracked resistor on a Frigidaire board just like that.

seanjohnson14d ago

Hey @jade738, did you end up doing anything special to keep those cracked resistors from coming back, like adding a dab of glue or something? I figure the vibration in these washers just slowly breaks them down over time...