Troubleshooting – Panasonic WHSXF12D6E51 User Manual

Page 9

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ENGLISH

9

TROUBLESHOOTING

The following symptoms do not indicate malfunction.

The following symptoms do not indicate malfunction.

SYMPTOM

SYMPTOM

CAUSE

CAUSE

Flowing sound during operation.

• Refrigerant

fl

ow inside the unit.

Operation is delayed a few minutes after restarting.

• The delay is a protection to the unit’s compressor.

Outdoor unit emits water/steam.

• Condensation or evaporation occurs on pipes.

Outdoor unit emits steam during heating mode.

• This is due to defrost operation happens at the heat

exchanger.

Outdoor unit does not operate.

• When the outdoor temperature is out of the operation

condition range, the heatpump system enter protection

control.

Air-to-Water Heatpump system operation will turn off.

• The heatpump system enter protection control.

Compressor stops by water inlet temperature lower than

18°C; and backup heater power turn on by water inlet

temperature lower than 23°C.

System dif

fi

cult to heat-up.

• When heating is operated by indoor unit together with

fl

oor heating or panel heater simultaneously, there

may be case where warm water temperature is getting

lower and cause

fl

oor heating or panel heater heat-up is

weaken.

• When outdoor air temperature is low, it may be dif

fi

cult to

get warm.

• Is the snow pile blocking the discharge outlet or intake

inlet of outdoor unit.

• When water outlet set temperature is low, it may be

dif

fi

cult to get warm.

System cannot get warm instantly.

• Due to the nature of the heatpump system, it may take

some time to heat-up the water if the unit is operated

from cold-start.

Backup heater turn ON automatically when it is not

enabled.

• The turn ON of backup heater is a protection to the

indoor unit’s heat exchanger.

Operation starts automatically even without ON Timer.

• The sterilization timer has been set.

Check the following before calling for servicing.

Check the following before calling for servicing.

SYMPTOM

SYMPTOM

CHECK

CHECK

Heating operation is not working ef

fi

ciently.

• Set the temperature correctly.

• Is the panel heater valve closed.

• Clear any obstruction at the air inlet and air outlet vents

of outdoor unit.

Noisy during operation.

• Check if the unit has been installed at an incline or the

cover is not closed properly.

The unit does not work.

• Check if the circuit breaker is tripped.

Operation LED is no lit or control panel display is blank.

• Is the power supply off or power failure.

The operation LED blinks and error code appear on control panel display.

The operation LED blinks and error code appear on control panel display.

TIMER

TIMER

1

MONTUEWEDTHU FRI SAT SUN

2 3 4 5 6

ON
OFF

• Turn the unit off and reveal the error code to authorized dealer.
• Timer operation cancel when error code occur.

Force Heater Mode Button

Force Heater Mode Button

FORCE

• In case of a failure of the Air-to-Water Heatpump system, the backup heater can be used to heat

up the heating water. Press

FORCE

to switch on the backup heater.

• Press

OFF / ON

to stop the force heater operation.

• During Force Heater mode, all other operations are not allowed.

F568562_YS0112-0.indb 9

F568562_YS0112-0.indb 9

16-Mar-12 9:42:12 AM

16-Mar-12 9:42:12 AM

Process Cyan

Process CyanProcess Magenta

Process MagentaProcess Yellow

Process YellowProcess Black

Process BlackPANTONE 293 C

PANTONE 293 C

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