Mitsubishi Electronics P500YMF-C, PURY-P400 specifications 122

Checking							Meaning, detecting method
code
6607		No ACK error			When no ACK signal is detected in 6 continuous times with 30 second
(continued)					interval by transmission side controller, the transmission side detects error.
						Note: The address/attribute shown on remote controller indicates the
							controller not providing the answer (ACK).
System	Generating		Display of	Detecting
compo-							Cause		Checking method & countermeasure
sition	unit address		trouble	method
	1 Outdoor		Remote	No reply	As same that for single refrigerant system.				Same as measure for single refrigerant
		unit (OC)	control-	(ACK) at					system.
			ler (RC)	OC
				transmis-
				sion to BC
	2 BC		Remote	No replay	As same that for single refrigerant system.				Same as measure for single refrigerant
		controller	control-	(ACK) at					system.
		<master>	ler (RC)	BC <master>
		(BC)		transmis-
				sion to IC
	3 BC		Remote	No reply	As same that for single refrigerant system.				Same as measure for single refrigerant
		controller	control-	(ACK) at					system.
		<slave>	ler (RC)	BC <slave>
		(BS)		transmis-
refrigerants				sion to BC
				<master>
	4 Indoor		Remote	No reply	1) Cause of 1) ~ 5) of “Cause for single refriger-				a) Shut down the power source of both
		unit (IC)	control-	(ACK) at IC		ant system”.			IC and OC for over 5 minutes simul-
plural			ler (RC)	transmis-	2) Disconnection or short circuit of transmission				taneously, and make them again.
				sion to RC		line of OC terminal block for centralized con-			Normal state will be returned incase
using						trol (TB7).			of accidental trouble.
					3)	Shut down of OC unit power source of one			b) Check for 1) ~ 5) of causes. If cause
						re-frigerant system.			is found, remedy it.
system					4) Neglecting insertion of OC unit power supply				c) Check other remote controller or OC
						connector (CN40).			unit LED for troubleshooting for
					5)	Inserting more than 2 sets of power supply			trouble.	→
operation						connector (CN40) for centralized control use.			Trouble		Modify the trouble ac-
					ed.				No trouble	→	Faulty indoor con-
					For generation after normal operation conduct-						cording to the content
					ed once, the following causes can be consider-						of check code.
Group						•	Total capacity error	(7100)			troller
						•	Capacity code setting error	(7101)
						•	Connecting set number error	(7102)
(2)						•	Address setting error	(7105)
	5 Remote		Remote	No reply	1)	Cause of 1) ~ 3) of “Cause for single refri-			a) Shut down the power source of OC
		controller	control-	(ACK) at		gerant system”.			for over 5 minute, and make it again.
		(RC)	ler (RC)	RC	2) Disconnection or short circuit of transmission				Normal state will be returned in case
				transmis-		line of OC terminal block for centralized con-			of accidental trouble.
				sion to IC		trol (TB7).			b) Check for 1) ~ 5) of causes. If cause
					3)	Shut down of OC unit power source of one			is found, remedy it.
									When normal state can not be ob-
									tained, check 1) ~ 5) of causes.

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