Posts
All the articles I've posted.
-
Danfoss FC-302 Alarm 12 — Overcurrent Fix
Danfoss FC-302 Alarm 12 (Torque Limit) means the drive's output current has been at the torque-limit setting (parameter 4-16 Motor Mode Torque Limit,...
-
Doosan / DN Solutions Alarm 302 — APC Fix
Doosan (now DN Solutions, after the 2022 rebrand) alarm 302 on the Fanuc-controlled VMC, HMC, and Mynx machining centers indicates an APC (Automatic Pallet...
-
Meiko / Ecolab Commercial Dishwasher Error Code Reference
Meiko dishwashers (also private-labeled under Ecolab in some North American foodservice accounts) use a standardized error code library across the M-iQ,...
-
Electrolux Washer Error Code E20 — Drain Pump Fix
Electrolux washer error E20 (also displayed as "EF" on some models) means the control board energized the drain pump but didn't see the wash water drop to...
-
Fanuc Alarm 430 — Servo Motor Overheat Fix
Fanuc Alarm 430 (Servo Motor Overheat, with axis name) means the thermistor inside the named servo motor's stator winding exceeded the trip threshold —...
-
Fanuc vs Mazak CNC Controls — A Machinist's Honest Comparison (2026)
If your shop runs job-shop work with frequent program changes, varied materials, and operators with mixed experience levels, buy a Mazak — the SMOOTH...
-
Frigidaire Dishwasher Error Code i30 — Water in Base Fix
Frigidaire dishwasher error i30 (also displayed as "30" or "iE30" on some models) means the anti-flood float switch at the bottom of the base pan has...
-
Frigidaire Refrigerator Error Code SY EF — Evap Fan Fix
Frigidaire (and its parent Electrolux's appliances under the Frigidaire badge) display error "SY EF" when the main control board detects that the freezer...
-
Fujitsu Mini Split 11:4 Error Code — Indoor Unit Communication Timeout Fix
Fujitsu 11:4 means the outdoor PCB stopped receiving valid communication frames from the indoor unit within the firmware timeout. It's almost always wiring...
-
Fujitsu Mini Split 14:1 Error Code — High Pressure Fix
Fujitsu 14:1 means the outdoor high-pressure switch opened — head pressure climbed past the trip point (around 580-620 PSI on R-410A platforms) and the...
-
Fujitsu Mini Split 15:1 Error Code — Low Pressure Fix
Fujitsu 15:1 means the suction-side low-pressure switch opened — suction pressure dropped below the trip threshold (around 25-30 PSI on R-410A platforms)...
-
Garland Char-Broiler Error Code — Safety Lockout Fix
Garland commercial char-broilers display "SAFE" or "PILOT" lockout (on electronic-ignition models) or simply fail to light (on standing-pilot models) when...
-
GE Dishwasher Error Code LC — Leak Detected Fix
GE dishwasher error LC means the leak-detection sensor at the bottom of the cabinet (a small float switch in the base pan or, on newer Profile models, a...
-
GE Refrigerator Error Code Er — Diagnostic Guide
GE Profile, Cafe, and Monogram refrigerators show "Er" on the dispenser display when the main board has lost communication with one of its sensor inputs —...
-
GE Washer Error Code E1 — Front-Load Inlet Fix
GE front-load washer error E1 (sometimes paired with E2 on some models) means the control board started a fill cycle but didn't see the tub reach target...
-
Goodman Heat Pump 2-Flash — Low Pressure Fix
A 2-flash code on a Goodman heat pump (GSZ, GSZC, DSZC platforms with diagnostic LEDs on the outdoor control board) indicates the low-pressure switch opened...
-
Goodman vs Bryant Furnaces — A Service Tech's Honest Comparison (2026)
Buy a Bryant if you're staying in the house 10+ years and want a furnace that ages gracefully — the build quality and service network reward long-term...
-
Haas Alarm 219 — X-Axis Servo Error Fix
Haas Alarm 219 (X-Axis Servo Error) on NGC machines is the X-axis-specific servo position-loop fault — distinct from the generic Alarm 114 (Servo Error Too...
-
Heatcraft Beacon II E1 Error Code — Sensor Fault Fix
Heatcraft Beacon II E1 means the controller can't read one of its connected temperature sensors — open, shorted, or wildly out of range. It's almost always...
-
Heil 3-Flash Error Code — Pressure Switch Fix (Tempstar / Comfortmaker)
A 3-flash error on a Heil, Tempstar, or Comfortmaker furnace means the integrated control did not see the pressure switch close after the inducer (draft...
-
Hobart AM15 Error 1-1 — Wash Motor Overload Fix
Hobart AM15 Error 1-1 means the wash pump motor drew current past the overload trip during a wash cycle — the motor is binding, the impeller is jammed, or...
-
Hoshizaki vs Manitowoc Ice Machines — A Commercial Tech's Honest Comparison (2026)
For most restaurant and bar operators, Hoshizaki delivers lower total cost of ownership over a 10-year service life — the auger/evap module on a cuber ages...
-
Jackson Conserver Series Error 1 — Low Water Fix
Jackson Conserver Series Error 1 means the wash tank didn't fill to the proper water level within the timeout window — the float switch never satisfied or...
-
Kelvinator Commercial Walk-In Controller Fault Codes
Kelvinator commercial walk-in controllers (KCS and KCD product lines, manufactured under the Heatcraft / Lennox umbrella since the brand consolidation) use...