III. Service Information Error Codes

III.SERVICE INFORMATION

1. ERROR CODES

Lamp	No.	Error	Problem	Operation	Control panel
Lamp	No.	Error	Problem	Operation	display
					display

			Flow rate stayed below 0.13	Production stops after
Error	E11	Low water	gal/min (0.5 L/min) for 10 sec	water valve turns off	Error no.
			with water valve on	two times
			Flow rate stayed above 0.13	Production stops after
Error	E14	Water shutoff	gal/min (0.5 L/min) for 10 sec	water valve turns on	Error no.
			with water valve off	two times
Error	E53	Contactor supply	Current stayed below 0.5A for 2	Production stops after	Error no.
Error	E53	Contactor supply	sec	contactor switches	Error no.
				three times
Error	E61	Flow switching	Switching did not complete	Production stops	Error no.
Error	E61	valve	within 30 sec	Production stops	Error no.

			Open circuit [-22°F (-30°C)] or	Production continues	Alternate between
—	E74	Thermistor	Open circuit [-22°F (-30°C)] or	as 41°F (5°C) (open	normal display
—	E74	Thermistor	short circuit [140°F (60°C)]	circuit) or 86°F (30°C)	normal display
			short circuit [140°F (60°C)]	circuit) or 86°F (30°C)	and error no.
				(short circuit)
		Float switch (if	Upper switch on, lower switch	Production continues	Alternate between
—	E82	provided with	Upper switch on, lower switch	Production continues	normal display
		tank)	off	(for at least 3 min)	and error no.
		tank)			and error no.
Add salt			Salt water pump stayed at 700
Add salt	—	Salt water level	spm (strokes per minute) for 90	Production stops	(Add salt lamp on)
water	—	Salt water level	spm (strokes per minute) for 90	Production stops	(Add salt lamp on)
water			sec
			sec
—	EE1	Model setting	Model setting connector lost or	Production stops	Error no.
			wrong
Error	EF0	Control board	EEPROM error	Production stops	Error no.

2. SERVICE DIAGNOSIS

Lamp	Error code	Problem	Check	Possible cause	Remedy
Add salt	—	Salt water pump stayed	Salt water tank	Low salt water	Add salt in salt
water		700 spm (strokes per		concentration	water tank
		minute) for 90 sec	Salt water hose	Loose connection to	Reconnect
				salt water tank
				Clogged	Unclog
				Vapor lock	Prime
			Filter	Dirty	Clean
			Switching	Defective	Repair or replace
			regulator	DC supply line open	Correct
			(electrolytic cell)	circuit
			Magnetic switch	Defective	Repair or replace
				Bad contacts	Repair
			Relay	Defective	Repair or replace
				Bad contacts	Repair
			Current sensor	Defective	Repair or replace

ROX-20TB2-U specifications

The Hoshizaki ROX-20TB2-U is a highly efficient and reliable ice maker designed for commercial use, catering primarily to restaurants, bars, and other foodservice establishments. This model stands out in the market due to its innovative technologies, robust build, and advanced features that address the demanding needs of high-volume ice production.

One of the primary features of the ROX-20TB2-U is its ability to produce an impressive amount of ice within a short period. Capable of generating up to 1,000 pounds of nugget ice in a 24-hour cycle, this machine ensures that businesses never run out of ice during peak service hours. The nugget ice produced is not only chewable but also ideal for quickly cooling beverages, making it a popular choice for cocktail bars and cafes.

In terms of construction, the ROX-20TB2-U is designed with durability in mind. The exterior is built from stainless steel, resistant to corrosion and wear, which makes it suitable for heavy-duty usage. The unit also features an ergonomic design that allows for easy access to components for maintenance and cleaning. This attention to durability assures long-term performance, minimizing downtime and repair costs.

One of the standout technologies employed in the Hoshizaki ROX-20TB2-U is its advanced air-cooled condenser. This system enhances efficiency while maintaining optimal performance, allowing for lower energy consumption compared to traditional ice makers. This eco-friendly aspect not only reduces utility bills but also aligns with sustainability goals that many businesses pursue today.

Another significant characteristic is the machine's user-friendly control panel. The intuitive interface allows operators to monitor production, adjust settings, and receive alerts for maintenance needs, making it easy to operate with minimal training. The built-in cleaning cycle feature further simplifies maintenance, ensuring that the ice produced is of the highest quality and free from contaminants.

Additionally, the Hoshizaki ROX-20TB2-U incorporates an advanced ice storage bin capable of holding up to 250 pounds of ice. This feature minimizes the need for frequent ice replenishment, ensuring that ice is readily available whenever needed.

Overall, the Hoshizaki ROX-20TB2-U is a top-of-the-line choice for those in the foodservice industry seeking reliability, efficiency, and quality in their ice-making equipment. Its combination of innovative technologies, durable construction, and ease of use makes it a valuable asset for any establishment that requires a continuous supply of ice.