Appliance Error Codes Decoded.
Every blinking light, beeping panel, and cryptic letter-number combination explained — by brand, by appliance, by code. Diagnose in seconds. Decide if it's a DIY fix or a callout.
Browse Error Codes by Brand
Pick your brand, then tap an appliance tab to see its codes. Click any code for the full diagnosis.
Most-Searched Error Codes
The codes Boston homeowners ask us about every week. Click through for the full diagnosis.
How to Use This Guide
Three steps from confused homeowner to confident decision.
Find your code
Search by code, brand, or appliance type. We catalog every error system used by the seven brands we service across Boston.
Read the diagnosis
Each code page explains the root cause, common triggers, and which parts are usually involved — written by our certified Promix technicians.
DIY or book us
Some codes mean a quick reset. Others mean a sealed-system repair. We tell you which is which, honestly, so you don't waste time or money.
Code Still Blinking? We'll Drive to You.
Same-day appointments across Boston and surrounding neighborhoods. Certified technicians. 90-day warranty on every repair. No diagnosis surprises.