What does Four Way Valve Abnormality (F25) mean on my Panasonic Heat Pump?
A Four Way Valve Abnormality (F25) on your Panasonic Heat Pump can be caused by: * Faulty sensor. * Faulty connector connection. * Faulty outdoor unit PCB (noise filter/main). * Faulty four way valve. During heating operation, this error is detected when the indoor pipe temperature of the thermostat ON indoor unit is less than 0°C.
What causes a Compressor Rotation Failure (F14) in my Panasonic WH-SXC09D3E5 Heat Pump?
A Compressor Rotation Failure (F14) in your Panasonic Heat Pump can be attributed to: * Compressor terminal disconnect. * Faulty outdoor unit PCB (main). * Faulty compressor. The system checks the compressor running condition through the position detection circuit to detect this failure.
What does Output Over Current Detection (F23) indicate on my Panasonic WH-SXC09D3E5 Heat Pump?
Output Over Current Detection (F23) on your Panasonic Heat Pump indicates that the outdoor DC current is too high. This can be due to: * Faulty outdoor unit PCB (main). * Faulty compressor. During operation of cooling and heating, this error is triggered when the IPM DC Peak sensing circuitry in the outdoor unit PCB detects outdoor DC current above 40.1 ± 5.0A (for: UD07~09CE) OR 44.7 ± 5.0A (for:UD12~16CE).
What could cause a Tank Booster Heater OLP Abnormality (H91) in my Panasonic Heat Pump?
A Tank Booster Heater OLP Abnormality (H91) in your Panasonic Heat Pump may be due to: * Faulty connector connection. * Faulty tank booster heater overload protector (OLP). * Faulty indoor unit PCB (main). This error occurs during operation of the tank booster heater, when the tank booster heater OLP is an open circuit.
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