ProBlue Flex 400/480 Volt Transformer
F-21
Part 1128350_02
E 2020 Nordson Corporation
Problem Possible Cause Corrective Action
2. Tank and/or manifold
not heating, but power
to melter, contd.
Blown fuse Check F2/F6 on the transformer PCA tray
forthemelt(tankorgrid)section.
Check F1 and F5 on the trans former PCA
tray for the manifold.
Power problem Check all three phases at terminal block.
Problem with transformer PCA tray
Replace module.
3. Fuse(s) fail frequently F2 or F6 fault: short circuit in the melt
(tank or grid) section
Locate and correct short.
F1 or F5 fault: short circuit in manifold
heater ot harness
F3 or F4 fault: transformer is
overloaded
Verify that total hose/applicator power
does not exceed capability of transformer.
4. Overtemperature fault
on tank or manifold
Shorted TRIAC(s) Replace the transformer PCA tray.
Noise problem Isolate sources of noise, change phases
of incoming supply, or add filter/snubber
to incoming supply line.
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