Fix your appliance error code, fast
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Most Common Fixes
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Furnace Error Code Lookup Tool: All Brands
Master furnace error code lookup guide covering Carrier, Goodman, Lennox, Trane, York, Rheem, Bryant, Heil, Amana, Coleman, and more.
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Ice Machine Error Code Lookup: All Brands
Master ice machine error code lookup guide covering Hoshizaki, Manitowoc, Scotsman, Ice-O-Matic, Follett, and more.
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Industrial Equipment Error Code Database: Master Reference
Master reference hub for industrial equipment error codes covering HVAC, refrigeration, VFDs, CNC controls, boilers, pumps, compressors, and commercial kitchen equipment.
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Mini Split Error Code Lookup: All Brands
Master mini split error code lookup guide covering Daikin, Mitsubishi, Fujitsu, Gree, LG, Bosch, Cooper & Hunter, and more.
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VFD Fault Code Lookup: All Brands
Master VFD fault code lookup guide covering ABB, Danfoss, Siemens, Schneider, Mitsubishi, Yaskawa, Allen-Bradley, and more.
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Hoshizaki Ice Machine E1 Error Code — Water Inlet Fix
Hoshizaki E1 error code means the ice machine has a water inlet problem. This guide covers float switch, inlet valve, and water supply fixes for Hoshizaki commercial ice makers.
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Fanuc Alarm 300 — APC Alarm Fix (Absolute Encoder)
Fanuc Alarm 300 is an APC (Absolute Pulse Coder) alarm on the absolute encoder. This guide covers battery replacement, encoder initialization, and board-level diagnosis.
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Mitsubishi Mini Split E6 Error Code Fix
Mitsubishi mini split E6 error code means a communication failure between the indoor and outdoor units. Here's how to diagnose wiring, boards, and connection issues.
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Carrier 13 Error Code — Limit Switch Lockout Fix
Carrier error code 13 means the limit switch tripped due to overheating. This guide covers every cause and fix — from clogged filters to cracked heat exchangers.
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Carrier 21 Error Code — Gas Heating Lockout Fix
Carrier error code 21 signals a gas heating lockout — the furnace failed to ignite after multiple attempts. Learn the exact steps to diagnose and reset it.
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Carrier 34 Error Code — Ignition Proving Failure Fix
Carrier error code 34 means ignition proving failure — the furnace tried to light but couldn't confirm a flame. Here's how to diagnose and fix it fast.
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Auto-updated from real reader traffic, refreshed weekly.
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All Fix Guides
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A.O. Smith Water Heater High-Limit Switch/ECO Replacement
No hot water or tripped reset button means the high-limit switch has shut off power. Replacing the upper thermostat/ECO assembly restores safe heating.
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Bradford White Water Heater High-Limit Switch (ECO) Replacement
No hot water after the ECO trips, repeated reset-button presses needed, or warm water only. Replacing the upper thermostat/ECO assembly restores heat and safety lockout protection.
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Rheem Water Heater High-Limit Switch / ECO Replacement Guide
Heater won't run after lockout, power cycle doesn't clear fault, or ECO trips repeatedly. Replacing the upper thermostat / ECO assembly restores operation.
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Bradford White Water Heater Drain Valve Replacement - Signs & How-To
Leaking, clogged, or stuck drain valve at the bottom of your Bradford White tank stops flushing and drips water. Replacing the brass valve restores normal operation.