Toshiba RAS-M10PKVP-E Service Manual page 74

11-1. First Confi rmation
11-1-1. Confi rmation of Power Supply
Confi rm that the power breaker operates (ON)
normally.
11-1-2. Confi rmation of Power Voltage
Confi rm that power voltage is AC 220–240 ±10%.
If power voltage is not in this range, the unit may not
operate normally.
No. Operation of air conditioner
1 When power breaker is turned "ON", the
operation lamp (Green) of the indoor unit
fl ashes.
2 Compressor may not operate even if
the room temperature is within range of
compressor-ON.
3 In DRY and SLEEP MODE, FAN (air fl ow)
display does not change even though FAN
(air fl ow select) button is operated.
4 Increasing of compressor motor speed
stops approx. 30 seconds after operation
started, and then compressor motor speed
increases again approx. 30 seconds after.
5 The set value of the remote control should
be below the room temperature.
6 In AUTO mode, the operation mode is
changed.
7 In HEAT mode, the compressor motor
speed does not increase up to the
maximum speed or decreases before the
temperature arrives at the set temperature.
8 Cool, Dry, or Heat operation cannot be
performed.
11-1-3. Operation Which is not a Trouble
(Program Operation)
For controlling the air conditioner, the program
operations are built in the microcomputer as
described in the following table.
If a claim is made for running operation, check
whether or not it meets to the contents in the
following table.
When it does, we inform you that it is not trouble of
equipment, but it is indispensable for controlling and
maintaining of air conditioner.
Table 11-1-1
The OPERATION lamp of the indoor unit fl ashes when
power source is turned on.
If "START/STOP" button is operated once, fl ashing
stops. (Flashes also in power failure)
The compressor does not operate while compressor
restart delay timer (3-minutes timer) operates.
The same phenomenon is found after power source has
been turned on because 3-minutes timer operates.
The air fl ow indication is fi xed to [AUTO].
For smooth operation of the compressor, the
compressor motor speed is restricted to Max. 41 rps for
2 minutes and Max. 91 rps for 2 minutes to 3 minutes,
respectively after the operation has started.
If the set value is above the room temperature, Cooling
operation is not performed.
And check whether battery of the remote control is
consumed or not.
After selecting Cool or Heat mode, select an operation
mode again if the compressor keeps stop status for 15
minutes.
The compressor motor speed may decrease by high-
temp. release control (Release protective operation
by temp.-up of the indoor heat exchanger) or current
release control.
When the unit in other room operates previously
in different mode, Fan Only operation is performed
because of fi rst-push priority control. (Cool operation
and Dry operation can be concurrently performed.)
– 74 –
Description