PH-20/PHX-20 Manual
39
TROUBLESHOOTING
Hose Heating (cont’d)
If the error code goes away and temperature is now shown on the display of
the controller then all the TSU harnesses from the TSU to the transformer
need to be checked for loose connectors or one or more of the harnesses are
defective.
PROBLEM
Heated hose controller shows excessive temperature
SOLUTIONS
1. Set the controller set point at least 20 degrees lower than the temperature shown on
the controller. Briefly turn on the hose and look for the led light on the solid state
relay to be on.
If the light is on replace the controller.
If the light is off replace the solid state relay.
PROBLEM
Hose will heat but does not come up to set temperature.
SOLUTIONS
1. Check the tap setting on the transformer to ensure that the correct position has
been selected for the length of hose being used. Depending on the machines
incoming voltage you may have to move the tap setting higher (up one).
CAUTION! Do not exceed the trip value of the transformer hose breaker.
WARNING! Before correcting any kind of defect, make sure the Main Power
Switch is OFF and incoming power is locked OFF. NEVER access the inside of
the Control Panel with the Proportioner power supply ON.
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