Posts
All the articles I've posted.
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LG Washer Error LE — Motor Lock / Stator Fix
LG washer error LE means the main control board sent a command to spin the motor but the Hall sensor on the stator reported the rotor not turning, or...
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Lochinvar Knight E02 — High Limit / Stack Temp Fix
E02 on a Lochinvar Knight wall-hung (WHN, WBN) or Knight XL floor-mount condensing boiler indicates a high limit or stack temperature lockout. The SMART...
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Manitowoc E15 Error Code — High-Side Pressure Switch Open Fix
E15 on a Manitowoc ice machine means the high-side pressure switch opened — discharge pressure exceeded its trip setpoint, typically 450 PSIG on R-404A...
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Manitowoc vs Scotsman Ice Machines — A Commercial Tech's Honest Comparison (2026)
For an operation that needs a single high-output cuber to feed a large bin, buy Manitowoc — the production-density-per-square-foot and the multi-unit fleet...
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Master-Bilt Walk-In Error Code — Controller Fault Fix
Master-Bilt walk-in cooler and freezer controllers (Penn KE2 Evap Efficiency, Heatcraft Beacon II, and the older Master-Bilt-branded Danfoss EKC) display...
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Mazak Matrix Alarm 1041 — Battery Voltage Drop / Encoder Battery Fix
Mazak Matrix Alarm 1041 (Battery Voltage Drop) is a warning that the absolute encoder backup battery has dropped below the low-voltage threshold — about...
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Mazak Alarm 218 — Spindle Motor Overheat Fix
Mazak Alarm 218 (Spindle Motor Overheat) fires when the thermistor embedded in the spindle motor stator windings exceeds the trip threshold — typically...
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Mazak Alarm 415 — Position Detector Error Fix
Mazak Alarm 415 (Position Detector Error) means the servo drive lost a clean signal from the position encoder on one axis — either the absolute position...
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Mazak Servo Parameter Error Fix (Matrix, M-Plus, Smooth)
A Mazak servo parameter error (variously labeled "Servo Parameter Error," Alarm 1280, Alarm 13, "PARAM SET," or shown as a drive-side AL on the MDS...
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Mitsubishi P-Series H6 — Outdoor Fan Motor Fix
Code H6 on a Mitsubishi P-Series (PUZ/PUY commercial split, PUMY VRF outdoor unit, City Multi outdoor) indicates an outdoor unit fan motor fault — the...
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Mitsubishi P3 Error Code — Outdoor Coil Thermistor Fix
A Mitsubishi P3 means the outdoor unit's coil thermistor (typically TH4, sometimes labeled TH-7 or TH-DEFROST depending on platform) is reading outside the...
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Mitsubishi P7 Error Code — System Mode Mismatch Fix
A Mitsubishi P7 means one or more indoor units in a multi-zone or VRF (variable refrigerant flow) system has requested a mode (heating or cooling) that...
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Mitsubishi vs Daikin Mini-Splits — A Service Tech's Honest Comparison (2026)
If you want the highest-performance cold-climate mini-split for a Northern U.S. home (Hyper-Heat technology for sub-zero performance), buy Mitsubishi — the...
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Mori Seiki / DMG MORI Alarm 3010 — Servo Error Fix
Mori Seiki / DMG MORI Alarm 3010 (sometimes formatted as "SV-3010" or "Servo Alarm 3010" in the OPERATOR screen) is a Fanuc servo amplifier error indicating...
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Navien NPE/NCB Code E003 — Ignition Failure Fix
E003 on a Navien NPE-A, NPE-S, NCB, or NFC series condensing combi/boiler indicates an ignition failure — the control attempted ignition through its full...
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Navien NPE-A 016 — Overheat Lockout Fix
Code 016 (also displayed as E016) on a Navien NPE-A or NPE-S tankless water heater means the unit's heat exchanger outlet temperature exceeded the overheat...
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Norlake Walk-In Error Code — Defrost Issue Fix
Norlake commercial walk-in cooler and freezer controllers (typically Heatcraft Beacon II or KE2 Evap Efficiency in newer installs, Danfoss EKC in older)...
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Okuma OSP Alarm 2202 — Spindle Fix
Okuma OSP control alarm 2202 (formatted as "2202 SPINDLE" or "2202-1" with axis sub-code) indicates the spindle drive amplifier has detected a fault during...
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Payne Error Code 31 — Pressure Switch Did Not Open Fix
Payne code 31 means the integrated furnace control sees the pressure switch already closed at the start of a heat call, before the inducer has run — the...
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Pitco Fryer Error Code E6 — High Temp Limit Fix
Pitco commercial fryer error E6 means the high-limit safety switch has opened — oil temperature exceeded the safety threshold (typically 460-475°F). The...
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Allen-Bradley PowerFlex vs Siemens SINAMICS — An Industrial Tech's Honest Comparison (2026)
For a plant that's already standardized on Rockwell ControlLogix or CompactLogix PLCs and uses EtherNet/IP as its primary fieldbus, buy Allen-Bradley...
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Samsung vs LG French-Door Refrigerators — An Appliance Tech's Honest Comparison (2026)
If you want a feature-rich French-door refrigerator with the most-developed smart-home integration and a generally lower service-call rate over 5-8 years,...
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Schneider Altivar OCF Fault — Overcurrent Fix
Schneider Altivar OCF (Overcurrent Fault) on the ATV320, ATV340, ATV630, ATV930, and most legacy ATV61/71 drives means the drive's IGBT power module...
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Schneider Altivar OSF Fault — Overspeed Fix
Schneider Altivar OSF (Overspeed Fault) means the drive's speed feedback (calculated from the back-EMF model in open-loop or from a real encoder in...