Panasonic CS/CU-Z error codes
Models: CS-Z20XKEW, CS-Z25XKEW, CS-Z35XKEW, CS-Z42XKEW, CU-Z20XKE, CU-Z25XKE, CU-Z35XKE, CU-Z42XKE
F 11switching 4-way valve abnormality — 4 times happen within 30 minutes — 4-way valve switching abnormalF 17Indoor standby units freezing abnormality — 3 times happen within 40 minutes — Wrong wiring and connecting…F 90Power factor correction (PFC) circuit protection — 4 times happen within 10 minutes — Power factor correction…F 91Refrigeration cycle abnormality — 2 times happen within 20 minutes — Refrigeration cycle abnormalF 93Compressor abnormal revolution — 4 times happen within 20 minutesF 94discharge overshoot Compressor protection — 4 times happen within 30 minutes — Compressor discharge pressure…F 95Outdoor cooling high pressure protection — 4 times happen within 20 minutes — Cooling high pressure protectionF 96module overheating Power transistor protection — 4 times happen within 30 minutes — Power transistor module…F 97Compressor overheating protection — 3 times happen within 30 minutes — Compressor overheatF 98Total running current protection — 3 times happen within 20 minutes — Total current protectionF 99current (DC) peak Outdoor direct detection — Continuous happen for 7 times — Power transistor module current…H 11Indoor/outdoor abnormal communication — 1 minute After operation for — Indoor/outdoor communication not…H 12Indoor unit capacity unmatched — supply 90s after power — Total indoor capability more than maximum limit or…H 14Indoor intake air temperature sensor abnormality — Continuous for 5s — Indoor intake air temperature sensor…H 15temperature sensor Compressor abnormality — Continuous for 5s — Compressor temperature sensor open or short…H 16Outdoor current transformer (CT) abnormality — Current transformer faulty or compressor faultyH 19Indoor fan motor merchanism lock — happen for 7 times Continuous — Indoor fan motor lock or feedback abnormalH 23Indoor heat temperature sensor exchanger abnormality — Continuous for 5s — Indoor heat exchanger temperature…H 24Indoor heat exchanger temperature sensor 2 abnormality — Continuous for 5s — Indoor heat exchanger temperature…H 25Indoor ion device abnormality — Port is ON for 10s during ion device offH 27temperature sensor Outdoor air abnormality — Continuous for 5s — Outdoor air temperature sensor open or short…H 28exchanger Outdoor heat temperature sensor 1 abnormality — Continuous for 5s — Outdoor heat exchanger…H 30Outdoor discharge pipe temperature sensor abnormality — Continuous for 5s — Outdoor discharge pipe temperature…H 32Outdoor heat exchanger temperature sensor 2 abnormality — Continuous for 5s — Outdoor heat exchanger…H 33Indoor / outdoor misconnection abnormality — Indoor and outdoor rated voltage differentH 34Outdoor heat sink temperature sensor abnormality — Continuous for 2s — Outdoor heat sink temperature sensor…H 36Outdoor gas pipe temperature sensor abnormality — Continuous for 5s — Outdoor gas pipe temperature sensor open…H 37Outdoor liquid pipe temperature sensor abnormality — Continuous for 5s — Outdoor liquid pipe temperature…H 38Indoor/Outdoor mismatch (brand code) — Brand code not matchH 39Abnormal indoor operating unit or standby units — 3 times happen within 40 minutes — Wrong wiring and…H 41Abnormal wiring or piping connection — Wrong wiring and connecting pipe, expansion valve abnormalityH 59ECONAVI sensor abnormality — Continuous for 25s — ECONAVI sensor open or short circuitH 64Outdoor high pressure sensor abnormality — minutes Continuous for 1 — High pressure sensor open stop circuit…H 67Nanoe abnormality — minutes for 3 times Nanoe stop for 5 — Nanoe faultyH 70Light sensor abnormality — Continuous for 24 hours, 15 days — Light sensor open or short circuitH 85Abnormal communication between indoor & wireless LAN module — for 10 minutes for Communication error 3 times —…H 97Outdoor fan motor mechanism lock — 2 times happen within 30 minutes — Outdoor fan motor lock or feedback…H 98Indoor high pressure protection — protection (Heating) Indoor high pressureH 99Indoor operating unit freeze protection — Indoor freeze protection (Cooling)
Codes the manuals give for these models. The brand's general codes: Panasonic