Phone Calls From Customers Something 3 Air blows out for a while after

is wrong

HEAT operation is stopped.

with the

 

blower…..

 

Something 1 The airflow direction is changed

is wrong

during COOL operation.

with the

 

airflow

 

direction….

 

2The airflow direction is changed during HEAT operation.

(The airflow direction cannot be set by remote controller.)

3The airflow direction doesn’t change.

(Up/down vane, left/right louver)

The air conditioner starts operating even though any buttons on the remote controller are not pressed.

The air conditioner stops even though any buttons on the remote controller are not pressed.

How to Respond

3This is not a malfunction.

The blower is operating just for cooling down the heated-up air conditioner. This will be done within 1 minute.

This control is conducted only when the HEAT operation is stopped with the electric heater ON.

1If the up/down vane is set to downward in COOL operation, it will be automatically set to horizontal blow by the microcomputer in order to prevent water from dropping down.

“1 Hr.” will be displayed on the remote controller if the up/down vane is set to downward with the fan speed set to be less than “LOW”.

2In HEAT operation, the up/down vane is automatically controlled according to the temperature of the indoor unit’s heat exchanger. In the following cases written below, the up/down vane will be set to horizontal blow, and the setting cannot be changed by remote controller.

1)At the beginning of the HEAT operation

2)While the outdoor unit is being stopped by thermostat or when the outdoor unit gets started to operate.

3)During DEFROST operation

The airflow direction will be back to the setting of remote controller when the above situations are released.

31) Check if the vane is set to a fixed position. (Check if the vane motor connector is removed.)

2)Check if the air conditioner has a function for switching the air direction.

3)If the air conditioner doesn’t have that function, “NOT AVAILABLE” will be displayed on the remote controller when “AIR DIRECTION” or “LOUVER” button is pressed.

1Check if you set ON/OFF timer.

The air conditioner starts operating at the time designated if ON timer has been set before.

2Check if any operations are ordered by distant control system or the central remote controller. While “CENTRALLY CONTROLLED INDICATOR” is displayed on the remote controller, the air conditioner is under the control of external directive.

3Check if power is recovered from power failure (black out).

The units will automatically start operating when power is recovered after power failure (black out) occurs. This function is called “auto recovery feature from power ”.

1Check if you set ON/OFF timer.

The air conditioner stops operating at the time designated if OFF timer has been set before.

2Check if any operations are ordered by distant control system or the central remote controller.

While “CENTRALLY CONTROLLED INDICATOR” is displayed on the remote controller, the air conditioner is under the control of external directive.

Note

However, this control is also applied to the models which has no electric heater.

“STANDBY” will be displayed on the remote controller in case of 1) and 2). “DEFROST” will be displayed on the screen in case of 3).

There might be a case that

“CENTRALLY CONTROLLED INDICATOR” will not be displayed.

There might be a case that

“CENTRALLY CONTROLLED INDICATOR” will not be displayed.

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Mitsubishi Electronics PUY-A30NHA2, PUZ-A42NHA2-BS With Blower…, With Airflow Direction…, There might be a case that
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