Toshiba RAS-10YKV-E Primary Judgment, Operation Which is not a Trouble Program Operation

10-1-3. 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 control- ling and maintaining of air conditioner.

	Table 10-1-1
No.	Operation of air conditioner	Description
1	When power breaker is turned “ON”, the	The OPERATION lamp of the indoor unit flashes when
	operation lamp (Green) of the indoor unit	power source is turned on. If [START/STOP] button is
	flashes.	operated once, flashing stops. (Flashes also in power
		failure)
2	Compressor may not operate even if the	The compressor does not operate while compressor
	room temperature is within range of	restart delay timer (3-minutes timer) operates.
	compressor-ON.	The same phenomenon is found after power source has
		been turned on because 3-minutes timer operates.
3	In Dry and ECONO. mode, FAN (air flow)	The air flow indication is fixed to [AUTO].
	display does not change even though FAN
	(air flow select) button is operated.
4	Increasing of compressor motor speed	For smooth operation of the compressor, the compressor
	stops approx. 30 seconds after operation	motor speed is restricted to Max. 41 rps for 2 minutes, and
	started, and then compressor motor speed	Max.91 rps for 2 minutes to 3 minutes, respectively after
	increases again approx. 30 seconds after.	the operation has started.
5	The set value of the remote controller	If the set value is above the room temperature, Cooling
	should be below the room temperature.	operation is not performed. And check whether battery of
		the remote controller is consumed or not.
6	In AUTO mode, the operation mode is	After selecting Cool or Heat mode, select an operation
	changed.	mode again if the compressor keeps stop status for 15
		minutes.
7	In HEAT mode, the compressor motor	The compressor motor speed may decrease by high-temp.
	speed does not increase up to the maxi-	release control (Release protective operation by temp.-up
	mum speed or decreases before the	of the indoor heat exchanger) or current release control.
	temperature arrives at the set tempera-
	ture.

10-2. Primary Judgment

To diagnose the troubles, use the following methods.

(1)Judgment by flashing LED of indoor unit

(2)Self-diagnosis by service check remote controller

(3)Judgment of trouble by every symptom

Firstly use the method (1) for diagnosis. Then, use the method (2) or (3) to diagnose the details of troubles.

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