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Electronics
All Tanks Read LOW:
• Check to make sure the element breaker is ON (element switch is to the le). Tanks will read low unl the
temperature in them reaches 175° F. Please allow 20-30 minutes to heat up inially.
An Individual Tank Reads LOW:
• Check the connecons at the temp probe.
• Check the thermal overload switch. If the switch has overheated, the center buon will pop out. Depress
the buon if so. Check again for heang. Check that temp stabilizes at set point.
• Check for connuity between the heang element posts and ground (metal of tank or frame). If connui-
ty exists, the element has failed. Check for proper resistance across element posts. If resistance is out of
spec, the element has failed. WARNING: Disconnect power to the machine when tesng the elements.
• Test the element relay. If relay is receiving a low voltage signal from the board but not lighng up (red
light), then the relay has failed.
An Individual Tank Reads Above the Set Point:
• Check the connecons to the temp probe.
• Check for connuity between the heang element posts and ground (metal of tank or frame). If connui-
ty exists, the element has failed. Check for proper resistance across element posts. If resistance is out of
spec, the element has failed. WARNING: Disconnect power to the machine when tesng the elements.
• Test the element relay. If relay is not receiving a low voltage signal from the board but is outpung high
voltage, the relay has failed.
Handheld Controller Display is Blank:
• If the red power switch is in the ON posion and is NOT lit, there is a lack of power to the machine. Check
the wall plug and circuit breaker.
• If the red power switch is in the ON posion and is lit, check that the lid of the electronics box is ghtly
secured to the box. There is a safety interlock switch inside the box which interrupts power to the elec-
tronics when the lid of the electronics box is loose or removed.
• Check the connectors on both ends of the handheld controller cord and ensure they are fully seated in
both the display board and the main electronics board.
Shot Timers are Blank; Machine is Powered:
• Inspect the ribbon cable. Ensure all connectors are properly seated in the shot mer boards and in the
main electronics board. Ensure there is no damage to the cable.
TROUBLESHOOTING
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