Turbo Air TGM-22R Self - Diagnosis table, Sensor Description, Electronic Controller Instruction

ELECTRONIC CONTROLLER INSTRUCTION

No	Control Function	Control Objects		Contents	Remark
12	Fuzzy	Heater	The Defrost step will be started at following conditions.
	Deforst	Compressor	1.	The compressor has run for 30 minutes.
		Evap-Fan Motor	2.	There is no openning the door for 30 minutes.
		Con-Fan Motor	3.	The temperature of D-sensor is lower than 5˚F.
			4.	The temperature of F-sensor is higher than D-senser's temperature
				by 53.6˚F for 10 minutes.

5-3. Self - Diagnosis table

Code	Content	Perception Method	Freezer operation state
F1	F-sensor	- Sensor shorted	- The compressor runs for 30 minutes and rests for 5 minutes.
	Malfunction	- Sensor disconnected	- Above action will repeat, until it is repaired.
D1	D-sensor	- Sensor shorted	- Defrost heater will attempt to defrost.
	Malfunction	- Sensor disconnected	- If F-sensor temp. is higher than 28.4˚F then heater goes off.
			- Heater turns on for 20 minutes, if F-sensor is in error mode
			too.
C1	Cycle, Comp.	- When the temperature of the	- Normal operation.
	Malfunction	D-sensor is over 32˚F	(Compressor is automatically turned on and off by F-sensor.)
		although the compressor has
		been running for 30 minutes.
F3	Defrost	When the D-sensor temperature	- Defrost heater will be come on for 40 minutes
	Malfunction	doesn't reach 47˚F	every time setted.
		within 40 minutes.	- If the D-sensor's temp. reach 47˚F within 40 minutes, D-
			heater will be turned off immediately.

5-4. Sensor Description

Sensor	Operation	Description	Remarks
F-sensor	-Thermistor(Electrical resistance varies with temperature changing)	- Wire color is orange.
	-Act like thermostat. Detects air temperature.
D-sensor	-Thermistor(Electrical resistance varies with temperature changing)	- Wire color is blue.
	-Act like thermostat. Detects Evap. coil's temperature.

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