Questions:

Answers:

Customer complains that unit is low production. How can I confirm this?

104: Cuber Production Check Spring has sprung and hot weather is on the way. Higher temperatures outside means more ice usage inside. A properly sized unit will provide adequate capacity in these peak periods of use. However, this is not always the case To continue reading this article, click here.

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Unit runs short freeze cycles and/or makes small cubes

140: Small KM Cubes Small cubes on a KM cuber mean only one thing. There's not enough water to make normal size cubes or the water is disappearing. Small cubes on a KM cuber mean only one thing. There's not enough water to make normal size cubes or the water is disappearing To continue reading this article, click here. 143: Service Q&A Question: I am servicing a KM cuber that has consistent 5 minute freeze cycles. What can cause this short cycling? This is one of the most common questions asked to the Technical Advisors To continue reading this article, click here.

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Evaporators freeze up

134: Service Q&A Question: The evaporator section is frozen solid. Once I thaw it, what do I check? You will find that the main reason for a freeze up is either a dirty evaporator or low water flow To continue reading this article, click here. 176: Service Q&A Question: I have a KM ice machine that has formed large blocks of ice in the Evaporator. What is the best way to clear the ice? Our old friend Barney Fife, would take a great big ax or ice pick, and go POW, POW, POW. We have even seen situations where a hammer and screwdriver were used. Obviously these are not good methods to thaw an evaporator. Though they can be effective in removing ice, these methods usually result in serious damage to the evaporator and loss of refrigerant To continue reading this article, click here.

Articles on similar subjects: Tech Tip 103: Cuber freeze ups Tech Tip 141: Service Q&A

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Unit runs long freeze times

126: Huge Cubes When diagnosing an ice machine, there are many obvious symptoms that will point you in the right direction. One such symptom can be found by inspecting ice in the bin. Odd shaped ice cubes generally point to water related problems. By inspecting the shape of the cubes, you can know which area to check first To continue reading this article, click here. 139: Service Q&A Question: The freeze cycle is longer than normal, what should I check? This is a common question asked by service technicians and is relatively easy to diagnose To continue reading this article, click here.

Articles on similar subjects: Tech Tip 107: TXV Diagnostics Tech Tip 108: Compressor Check Out Tech Tip 110: HGV Diagnosis Tech Tip 119: KM Ice Quality Tech Tip 125: Compressor Diagnosis Tech Tip 126: Compressor refrigeration diagnosis

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Unit runs long harvest times

145: Service Q&A Question: The harvest cycle for this KM cuber is over 8 minutes long in the winter time, what can I do to correct this? A longer harvest cycle in the winter is a common occurrence. To answer this question we must first look at the normal operation of the KM series To continue reading this article, click here. 177: Service Q&A Question: I have a KM model that is running long harvest cycles. Do you think I should replace the thermistor or what should I look for? This is a question that comes up often in the wintertime because of colder water conditions To continue reading this article, click here.

Articles on similar subjects: Tech Tip 105: KM Thermistor Operation & Check Out Tech Tip 110: HGV Diagnosis Tech Tip 112: Thermistor Mounting Tech Tip 138: KM Thermistor Function Tech Tip 165: Thermistor Check Out Tech Tip 170: Service Q&A

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Unit will not start

136: Service Q&A Question: My KM unit will not start or fill with water. What do I check? This situation can be caused by several reasons. First we must determine the presence of proper supply voltage and water supplied to the unit. Now that this is confirmed, let's look at the possible problems To continue reading this article, click here.

Articles on similar subjects: Tech Tip Q&A 142: Service Q&A

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The sump or reservoir overflows into the bin

181: Service Q&A Question: I have water overfilling from the water sump tank and splashing into the bin every time the unit is in the harvest cycle. Why is this occurring? First, let me say that 9 out of 10 callbacks on a new unit are related to the machine not being installed according to the factory specs To continue reading this article, click here.

Articles on similar subjects: Tech Tip Q&A 142: Service Q&A

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How do I clean my KM unit?

186: Detailed KM Cleaning In this article we are going to cover the details of thoroughly cleaning a Hoshizaki ice machine. We find a great deal of warranty claims being submitted for parts that have failed due to lime or calcium scale build up To continue reading this article, click here. 106: KM Water System and Cleaning Before we discuss cleaning the KM series units, let's discuss some differences between Hoshizaki and our competitors. First, the reservoir of the KM series units is larger than any other ice machine on the market. This allows for a larger ice drop weight, which relates to longer cycles/fewer cycles per day. Second, the water flows down across the flat surface of the evaporator To continue reading this article, click here.

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My unit is beeping 1 time every three seconds. What do I look for?

148: Service Q&A Question; What do I check if I am servicing a unit with an "E" control board installed and it is beeping 1 beep every 3 seconds. When servicing a unit that has the new "E" control board, there are several audible alarms which could occur. We will be discussing the first alarm feature which is the HIGH TEMPERATURE SAFETY To continue reading this article, click here.

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My unit is beeping 2 times every three seconds. What do I look for?

149: Service Q&A Question; What do I check if I am servicing a unit with an "E" control board installed and it is beeping 2 beeps every 3 seconds. In this case, access the control box and you will find the orange LED marked 20 min. illuminated. By checking the control board instructions label supplied with the board it can be determined that the unit has run two consecutive 20 min. harvest cycles To continue reading this article, click here.

Articles on similar subjects: Tech Tip 147: New Control Board Tech Tip 191: Control Board Error Alarms Tech Tip 145: Service Q & A Tech Tip 177: Long Harvest

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My unit is beeping 3 times every three seconds. What do I look for?

150: Service Q&A Question: What do I check if I am servicing a unit with an "E" control board installed and it is beeping 3 beeps every 3 seconds. An alarm code of 3 beeps every 3 seconds means that the control board has shut down on the 60 minute freeze cycle back up timer To continue reading this article, click here.

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My unit is beeping 4 times every three seconds. What do I look for?

SB01-0001: ...In order for the new bin control to work, dipswitch number 7 on the control board must be in the ON position. Using the red K-4 connector and turning on dipswitch number 7 will add two additional control board alarms to the board operation To continue reading this article, click here.

Articles on similar subjects: Tech Tip 147: New Control Board Tech Tip 191: Control Board Error Alarms

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My unit is beeping 5 times every three seconds. What do I look for?

SB01-0001: ...In order for the new bin control to work, dipswitch number 7 on the control board must be in the ON position. Using the red K-4 connector and turning on dipswitch number 7 will add two additional control board alarms to the board operation To continue reading this article, click here.

Articles on similar subjects: Tech Tip 147: New Control Board Tech Tip 191: Control Board Error Alarms

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My unit is beeping 6 times every three seconds. What do I look for?

This is an indication that the unit is off on a low voltage safety. If the incoming voltage drops below 92 VAC+/- 5% the unit will de-energize the red LED and begin an audible alarm of six beeps every three seconds. The low voltage alarm is triggered by monitoring the secondary voltage of the transformer at the K2 connector on the control board. This alarm as well as the high voltage alarm will automatically reset when the proper voltage is restored.

Articles on similar subjects: Tech Tip 147: New Control Board Tech Tip 191: Control Board Error Alarms

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My unit is beeping 7 times every three seconds. What do I look for?

151: Service Q&A Question: What do I check if I am servicing a unit that has the new "E" control board installed and it is beeping 7 beeps every 3 seconds? ...there are several audible alarms which alert the service technician to specific problems with the unit. In this article we will highlight the HIGH VOLTAGE SAFTEY To continue reading this article, click here.

Articles on similar subjects: Tech Tip 147: New Control Board Tech Tip 191: Control Board Error Alarms

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