GMC Mold Temperature Controller
	Issues > Check/Troubleshooting

		LEVEL DROP appears on display .
		Medium equipment is not being supplied with water. Water supply solenoid valve is not functioning normally. (GMC-L, H) Solenoid valve for air release is not functioning normally. (GMC-L, H) Floatless/Float Switch will not detect.

	1. Medium equipment is not being supplied with water. (GMC-L, H types) Check water supplying equipment (primary side cooling water). Water Supply valve Drain valves Cooling Tower pumps, etc. [Point] Fully open valves. Check to see if feeding pressure and drain-side pressure of cooling water at primary side are set as specified. (References) Supply side pressure should be within the range of 0.1 Mpa (14.5 psi) and 0.3 Mpa (43.5 psi). Drain-side pressure should be below 0.09 Mpa (13.0 psi). Supplying water pressure should be 0.05 Mpa (7.25 psi) to 0.3 Mpa (43.5 psi) higher than the drain-side pressure. But if the supplying pressure exceeds 0.3 Mpa, install a pressure-reducing valve. (GMC-A type) Supply medium equipment with oil. [Point] Use oil provided by Matsui to supply equipment. If problem persists Return to top of the page
	2. Water supply solenoid valve is not functioning normally. (GMC-L, H) Take valve apart and see if it functions properly. Solenoid Valve Cleaning Solenoid Valve Order If problem persists Return to top of the page
	3. Solenoid valve for air release is not functioning normally. (GMC-L, H) Take valve apart and see if it functions properly. Solenoid Valve Cleaning Solenoid Valve Order If problem persists Return to top of the page
	4. Floatless/Float Switch will not detect. Switch may not detect medium when scale does not function properly. Clean floatless (L, H types)/float (A types) switches if either are found to be dirty upon inspection. Floatless Switch Cleaning Float Switch Cleaning Maintenance/Inspection Floatless Switch Order Float Switch Order If problem persists Return to top of the page