Samsung RS2544, RS2666, RS2622, RS2777 manual Check the operation of SSR71 and Q701

Diagnostics

11-10) If the solenoid in the ice-chute cover doesn’t work :

Preliminary check

1)Check if the solenoid is unconditionally operated for 0.3 sec, independent of the Open/Close condition of cover ice-route, after a lapse of about 5 seconds from power ON. (Before installation, the cancellation of cover ice-route open is enabled.)

2)Check if the connector in upper hinge section is hook-up correctly.

				Start
			YES
				Is the S/N(solenoid) for
				0.3 sec operated after 5 seconds
				from power ON?
The S/N control PCB assembly and					NO
wire system have no trouble.
				Is MICOM No. 27 on			YES
		NO		PCB maintaining High for 0.3 sec at the first
Press Ice lever and keep it open.				power	ON?
					NO
								MICOM control port is normal.
	YES	NO		Exchange the main PCB assembly.
Is the cover closed of
						NO		Does C-E(between C and E)
S/N after about
7∼10	seconds?							of TR Q701 turn ON for 0.3 sec?
	YES
				After replace TR Q701 and check SSR71 then					YES
				exchange the failed components or replace the
All the control system of cover ice-				PCB assembly.				TR701 and SSR71 are normal
route has no trouble.

		Check the stop lever and support
		time-delay.
With the ice S/W ON			YES
and ICE S/W on, ice-movement motor in F room?
	NO			Subject to the ice
				S/W ON, do CN31 No. 2 and MICOM No. 45
				get impressed 0V?
Check the ICE S/W, and troubleshoot					YES
the wire connection system.

- Main PCB and the sensing section of ice-S/W are normal.

- Check the operation of SSR71 and Q701.

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