HVAC, Appliance, CNC, and VFD Error Code Repair Guides
Browse repair guides for HVAC, appliances, refrigeration, CNC alarms, VFD faults, generators, boilers, water heaters, and commercial equipment.
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True Refrigerator E2/P2 Evaporator Probe Fault
True refrigerator E2 or P2 means the evaporator probe failed. Check sensor resistance, ice buildup, harness damage, and GDM or T-Series fit.
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Carrier Furnace Error Code 13 — Limit Circuit Lockout Fix
Carrier error code 13 means limit circuit lockout after repeated high-limit trips. It auto-resets after 3 hours. Here's what caused it and how to fix it.
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Carrier Furnace Error Code 31 — Pressure Switch Open Fix
Carrier Furnace Error Code 31 - Pressure Switch Open Fix: likely causes, checks, and repair decisions before replacing parts.
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Carrier Code 33 Limit or Rollout Fault
Carrier code 33 guide for limit-switch and rollout faults, airflow, filters, blower speed, gas pressure, heat exchangers, and resets.