10
TROUBLESHOOTING
Problem
Probable cause
Solution
Unit has no LED display.
•
No power from main.
•
Blown fuse.
•
P3 disconnected.
•
Connect cord plug to main.
Switch unit on.
•
Replace with correct fuse rating.
If problem persists, consult
qualified personnel.
•
Reconnect P3.
No response or audible beep
when keypad is depressed.
•
Defective keypad.
•
Microprocessor lockup
(power surge).
•
Replace keypad (call TBS).
•
Switch unit off, wait 3 seconds,
switch back on.
Solid block of paraffin not
melting, but will dispense some
liquid paraffin.
•
Set temp too low.
•
Defective band heater.
•
Defective solid state relay
(K2).
•
Increase set temp to 65
°
C.
•
Check resistance value for
approx. 55
Ω
at P4 pin 4 & 1.
•
Replace heater (call TBS).
Paraffin not melting. No liquid
wax dispensing, no increase in
temperature.
•
Keypad LED not lit.
•
Disconnected P4.
•
Defective controller board
and/or firmware.
•
Press the
ON
switch.
•
Reconnect P4.
•
Replace controller board (call
TBS).
Paraffin completely melted.
Actual and set temp agree
but unit will not dispense wax.
•
Defective spigot heater.
•
Defective solid state relay
(K4).
•
Check resistance value for
approximately 1200
Ω
at P3 pin
2 and P4 pin 6.
•
Replace controller board relay
(call TBS).
Paraffin completely melted.
Actual and set temp agree
but unit will not dispense wax,
and
spigot is hot to the touch.
•
Foreign objects block spigot
or drain.
•
Remove foreign object.
Spigot leaks at the handle.
•
Defective seat cup.
•
Replace seat cup.
Spigot drips.
•
Foreign debris not allowing
closure.
•
Seat cup not fully seated.
•
Switch unit off and remove the
spigot handle to expose silicone
seat cup. Clean cup thoroughly
and reinstall.
•
Remove seat cup and reinstall,
ensuring proper seal.
Slow or limited temperature
increase; spigot is hot to the
touch, but paraffin does not
flow.
•
Defective bottom heater.
•
Open safety over heat
protector (thermostat).
•
Defective solid state relay(
K1).
•
Check resistance value of the
bottom heater approx. 51
Ω
at
P4 pins 2 and 3.
•
Replace thermostat.
•
Replace relay.
E1 error code, temp display
reads
HI
but paraffin reservoir
not overheating.
•
Defective bottom
temperature sensor.
•
Sensor disconnected P2.
•
Defective controller board.
•
Replace sensor (call TBS).
•
Reconnect P2.
•
Replace controller (call TBS).
