Icematic DX 40, Service Manual

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SYMPTON POSSIBLE CAUSE SUGGESTED CORRECTION
Unit will not run Blown fuse in P.C. Board Replace fuse & check for cause of
(No warning LEDS glows) blown fuse
Main switch in OFF position Turn switch to ON position
Burn-out transformer Replace P.C. Board
Inoperative P.C. Board Replace P.C. Board
Loose electrical connections Check wiring
(Green LED-Power ON glows) P.C.Board selector in STAND BY Move to OPERATING position
Blown 16 A fuse in P.C. Board Replace fuse
(Bin full LED glows) Inoperative ice level control Replace ice level control
(Red-alarm LED glows) Evaporator sensor unplugged Check for properly plug
Evaporator sensor out of order Check with an ohmmeter for
electrical conductivity. If zero or
infinitive replace it.
Evaporator sensor probe loose Replace it
on its cable
Compressor doesn't run Check for power on compressor
PC Board outlet. If so replace
compressor.
It not replace PC Board.
Fan motor doesn't run during Replace fan motor
freezing. Check for correct operation of
pressure control
(Cut in at 10 bar - 140 psi)
Hot gas valve open during freezing Replace hot gas valve
Water inlet valve open during freezing Replace water inlet valve
No water to the water cooled Check for inoperative water
condenser regulating valve.
Check for shortage of water.
Compressor cycles intermittently Low voltage Check circuit for overloading
Check voltage at the supply to the
building. If low, contact the power
company
Contactor with burnt contacts Clean or replace
Non-condensable gas in system Purge the system
Compressor starting device with Check for loose wires in starting
loose wires device
Cubes too small Freezing cycle too short Review setting of DIP SWITCH keys
Capillary tube partially restricted Blow charge, add new gas & drier,
after evacuating system with
vacuum pump
Moisture in the system Same as above
Shortage of water See remedies for shortage of water
Shortage of refrigerant Check for leaks & recharge
Inoperative evaporator sensor Replace sensor
SERVICE DIAGNOSIS
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