Heat Controller VMC30SB-1/VMH30SB-1, VMC09SB-1/VMH09SB-1 Troubleshooting CH32, CH33, CH40

Part 4	Trouble Shooting
8) Troubleshooting CH32, CH33, CH40
Error	Title	Cause of error	Check point & Normal condition
code
			• Check the discharge pipe sensor for INV.
	Discharge pipe (Inverter)		• Check the installation conditions for over loads.
32		• Discharge sensor	• Check for leakage of refrigerant.
	temp. high
		(Inverter) temp. high	• Check if the SVC V/V is open.
	(105°C(221°F)↑)
			Note: If SVC V/V stands for service valves, please
			use service valves in place of SVCV/V.
	Discharge pipe(Constant)		• Check the discharge pipe sensor for Cons.
33		• Discharge sensor	• Check the installation conditions for over loads.
	temp. high
			• Check for leakage of refrigerant.
	(105°C(221°F)↑)	(Cons.) temp. high
			• Check if the SVC valve is open.
40		• Open/Short	• Normal resistor : about 0Ω
	CT Sensor	• Soldered poorly
		• Internal circuit error

		Discharge pipe temp.
Toff(105) °C			(221)	°F
T2(95) °C			(203)	°C
T1(90) °C			(194)	°C
COMP Frequency	Normal	Normal	OFF
(Hz)
LEV Openness	Normal	Normal	OFF Control
(Pulse)

Check Point

•CH 32

1.Check the installation conditions for over loads.

2.Check if the SVC valve is open.

3.Check for leakage of refrigerant.

•CH 40

1.If the resistance of the sensor is only ∞ , the check Is possible.

2If the error occurs again after the reset , change the PCB.

•CH 33

1.Check the installation conditions for over loads.

2.Check if the SVC valve is open.

3.Check for leakage of refrigerant.

4.Check the constant compressor. (same with CH21)

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Only for training and service purposes