Panasonic WH-MDF09C3E8 Operating Instructions Manual

Also see for WH-MDF09C3E8: Design handbook Installation manual Installation manual Operating instructions Service manual

Contents

Panasonic WH-MDF09C3E8 Operating Instructions Manual Manual pdf 9 page image

ENGLISH9TROUBLESHOOTINGThe following symptoms do not indicate malfunction.The following symptoms do not indicate malfunction.SYMPTOMSYMPTOM CAUSECAUSEFlowing sound during operation. ► • Refrigerant flow inside the unit.Operation is delayed a few minutes after restart. ► • The delay is a protection to the unit’s compressor.Mono bloc unit emits water/steam. ► • Condensation or evaporation occurs on pipes.Mono bloc unit emits steam during heating mode. ► • This is due to defrost operation happens at the heatexchanger.Mono bloc unit does not operate. ► • When the outdoor temperature is out of the operationcondition range, the heatpump system enter protectioncontrol.(Mono bloc) Air-to-water Heatpump system operation willturn off.► • If mono bloc unit water inlet temperature is lower than 20°C.Backup heater power will turn on to heat up the water.System difficult to heat-up. ► • When heating is operated together with floor heating orpanel heater simultaneously, there may be case wherewarm water temperature is getting lower and cause floorheating or panel heater heat-up is weaken.• When outdoor air temperature is low, it may be difficult toget warm.• Is the snow pile blocking the discharge outlet or intakeinlet of mono bloc unit.• When water outlet set temperature is low, it may bedifficult to get warm.System cannot get warm instantly. ► • Due to the nature of the heatpump system, it may takesome time to heat-up the water if the unit is operatedfrom cold-start.Operation starts after power resumes. ► • Unit is operates under auto restart function.Check the following before calling for servicing.Check the following before calling for servicing.SYMPTOMSYMPTOM CHECKCHECKHeating operation is not working efficiently. ► • Set the temperature correctly.• Is the panel heater valve closed.• Clear any obstruction at the air inlet and air outlet ventsof mono bloc unit.Noisy during operation. ► • Check if the unit has been installed at an incline or thecover is not closed properly.The unit does not work. ► • Check if the circuit breaker is tripped.Operation LED is no lit or remote control displayis blank.► • Is the power supply off or power failure.The operation LED blinks and error code appear on remote control display.The operation LED blinks and error code appear on remote control display.TIMERTIMER 1MON TUE WEDTHU FRI SAT SUN2 3 4 5 6ONOFF• Turn the unit off and reveal the error code to authorized dealer.• Timer operation cancel when error code occur.Force Heater Mode ButtonForce Heater Mode ButtonFORCE• In case of a failure of the (Mono bloc) Air-to-Water Heatpump system, the backup heater can beused to heat up the heating water. Press FORCEto switch on the backup heater.• Press OFF / ONto stop the force heater operation.• During Force Heater mode, all other operations are not allowed.