This page helps owners of Smartool BF series ice makers work through the most common faults: no ice, no water intake and no ice harvest. Each fault lists the checks trained staff can make (user checks) and the checks that belong to a qualified technician (engineer checks). Switch off and unplug the machine before opening any panel.

Which Smartool models this covers

Model	Supply listed on the product page	Features that matter when troubleshooting
BF500	AC 110–120 V / 60 Hz, 1050 W	Water shortage and ice full alerts, 48-hour timer, 12-level ice thickness control, automatic self-cleaning, protection against controller overheat, compressor overload and fuse overcurrent
BF360	AC 110–120 V / 60 Hz, 700 W	Water shortage and ice full alerts, 48-hour timer, 12-level ice thickness control, automatic cleaning function, high-temperature, compressor overload and overcurrent protection

Both product pages list an operating range of 5–38 °C (41–100 °F). Output also depends on room and water temperature: the BF500 is rated at 500 lb per 24 hours at 21 °C (70 °F) room and 10 °C (50 °F) water, but 375 lb at 32 °C (90 °F) room and 21 °C (70 °F) water. The BF360 drops from 360 lb to 275 lb under the same conditions. Lower output in a hot room is expected and is not by itself a fault.

Alarm and display codes

Alarm codes and service intervals differ by model and are listed in the operation manual that ships with your machine. If you need the manual for your Smartool model or help reading a code, contact our support team and we’ll send the documentation and walk you through it. The Smartool fault diagnosis guide also covers common ice maker symptoms.

1. Failure: Not Making Ice

User Checks

• Alerts and timer: Read the display. An ice full alert means the machine has stopped because the bin is full; a water shortage alert points to the water supply (see section 2). Check that the 48-hour timer is not set to start production later.
• Water supply: Confirm the supply valve is open and water reaches the machine.
• Filter screen: Check the inlet filter screen for clogs or debris.
• Room temperature: Check that the room is within the 5–38 °C (41–100 °F) range listed for BF models, and that the clearance around the machine is clear.
• Thin ice: If the machine makes ice but the cubes are thin, check the ice thickness setting (12 levels on BF models) before suspecting a fault.

Engineer Checks

• Inlet valve coil
• Scale on the evaporator
• Refrigerant leakage
• Ice-full sensor
• Water pump operation

2. Failure: No Water Intake

User Checks

• Inlet filter: Check the inlet filter for clogs or debris.
• Water source: Make sure the water source is turned on and supplying adequate pressure.

Engineer Checks

• Voltage at the inlet valve
• Float switch
• Replace the inlet valve if it has failed

3. Failure: No Ice Harvest

User Checks

• Scale buildup: Check for scale on the ice trays. Run the water-system cleaning cycle with the cleaner named in your manual (BF models list an automatic cleaning function), then rinse. See Maintenance of Ice Machine. Do not chip ice off the trays with tools.

Engineer Checks

• Hot gas valve
• Expansion device
• Ice-full probe sensor

4. Machine Stops or Shuts Down

BF models list protection against overheating, compressor overload and overcurrent. If the machine shuts itself down:

• Clean the condenser and restore clearance, then let the machine cool before restarting.
• Check that the circuit matches the rating plate (AC 110–120 V / 60 Hz on BF models).
• If it keeps shutting down, call a technician or Smartool support. Do not keep resetting it.

When to call for service

Anything inside the refrigeration system or behind the control panel is technician work. Send Smartool support the model, serial number, the alert or code shown and when in the cycle the problem appears. For symptom-by-symptom background, see our guides on a commercial ice machine not making ice and an ice machine freezing up.