ITV IQ 50 - 11. TROUBLESHOOTING

ICE QUEEN
TECHNICAL SERVICE MANUAL
43
11. TROUBLESHOOTING
PROBLEM
PROBABLE CAUSE
SOLUTION
1) Machine not running.
A) There is no power.
A) Check power source.
B) Water trough is empty.
B) Check the water supply.
Check filters.
Open faucet
C) “Full bin” sensor malfunction.
C) Fix/replace sensor.
D) No apparent cause.
D) Check: contactor, circuit, breaker,
pressostat, timer, electric installation
and magnetic micro
E) Timer is faulty.
E) Replace.
2) Machine works, but doesn’t make ice.
A) Refrigerant leak.
A) Repair leak and recharge
refrigerant .
B) Faulty compressor.
B) Replace compressor.
C) valvula de expansion cerrada o
estropeada or capillary obstructed
C) Open or Replace valve (or
capillary) and dehydrating filter.
D) Water/humidity in refrigerating system.
D) Charge compressor oil, replace
capillary and dehydrator (use an anti-
acid one), create a vacuum in the
installation, slightly warm up all
components and charge refrigerant.
3) Machine works inconsistently
A) Water pressure lower than 0’7 BAR
(pressure may sometimes drop greatly
when several taps are opened elsewhere in
premises)
A) For smaller units try regulating the
water trough float. Larger machines
might require installation of a mains
pressure raising unit.
B) Water pressure is appropriate (0’7 a 6’5
BAR)
B) Regulate water level in trough.
4) Compressor works in intermittent
manner.
A) Condenser is dirty
A) Clean condenser.
B) Air circulation obstructed.
B) Re-establish air circulation.
C) Defective condenser fan.
C) Check and replace fan.
D) Fan pressostat is defective or needs
adjustment.
D) Check and replace/adjust
E) Safety pressostat is defective.
E) Check and replace.
F) Compressor start system is defective.
F) Check and replace.
G) Pressostat valve is defective or needs
adjustment.
G) Adjust, repair or replace valve.
H) Voltage too low/insufficient line section
H) Inspect and replace if necessary.
5) Ice is too wet.
A) Room temperature too high (over 35ºC)
A) Relocate unit to a cooler place.
B) Water temperature too high (over 30ºC).
B) Ensure that filter and inlet tube
are away from heat sources, such as
hot air blown by machine’s own fan.
C) Poor water quality (over 1500 ppm)
C) Lower the water trough. Install
water purifier.
D) Condenser is dirty.
D) Clean condenser.
E) Pressure-controlled valve on cooling
water needs adjustment or is defective.
E) Adjust or replace valve.
F) Low compressor output
F) Replace compressor.
G) Refrigerant leak
G) Repair leak and recharge
refrigerant.
H) Water level in trough is low. Water
consumption is greater than buoy valve
pass.
H) Check water pressure. Look for
obstruction in filters or valve.
Adjust water level in trough