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Middleby ICETRO ISI-161TI Troubleshooting Manual

Soft serve freezers
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Trouble Shooting for
ICETRO Soft Serve Freezers
Revised: 7/26/2024
1

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Summary of Contents for Middleby ICETRO ISI-161TI

  • Page 1 Trouble Shooting for ICETRO Soft Serve Freezers Revised: 7/26/2024...
  • Page 2 CAUTION: Information in this manual is intended to be used by authorized Taylor service technicians only. Note: Continuing research results in steady improvements; therefore, information in this manual is subject to change without notice. Note: Only instructions originating from the factory or its authorized translation representative(s) are considered to be the original set of instructions.
  • Page 3 Table of contents • General Troubleshooting Guide • PCB Error Code Summary • PCB Error Code Troubleshooting • Other Troubleshooting...

  • Page 4: Troubleshooting

    TROUBLESHOOTING General Troubleshooting Guide Table 3-1 Problem Probable Cause Remedy 1. Compressor will not run. a. The power switch is in the OFF position. a. Place the switch in the ON position. b. An error has been made in key pad b.
  • Page 5 TROUBLESHOOTING Problem Probable Cause Remedy 8. Draw valve leaking. a. Draw valve leaking. a. Replace regularly. b. Inadequate lube on draw valve O-rings. b. Lubricate properly. c. Wrong type of lubricate being used. c. Use proper lubricant. Example: Taylor Lube High Performance.
  • Page 6 TROUBLESHOOTING Problem Probable Cause Remedy 17. Drive shaft is stuck in the a. Corners of the drive shaft, coupling, or a. Replace the necessary component(s). Do gear box coupling. both are rounded. not lubricate the end of the drive shaft. b.
  • Page 7 TROUBLESHOOTING Cause Of Contamination Prevention 4. Improper cleaning and sanitation procedures. a. For cleaning procedures, scrub the sink and strainers thoroughly before each use. The level of solution in each basin must allow the largest component to be submerged. Sanitize and prime the freezer prior to freezing the product. After sanitizing a freezer, use fresh mix to flush remaining sanitizer from the freezing cylinder.
  • Page 8 TROUBLESHOOTING PCB Error Code Summary Recording CODE Display Cause Remedy Record Location Er00 Mix Out Mix shortage Refill mix Main Er01 Hop. Sensor Op. Hopper Thermistor probe OPEN Hopper Thermistor probe replacement Main Hopper Thermistor probe Er02 Hop. Sensor St. Hopper Thermistor probe replacement SHORT Main...
  • Page 9 TROUBLESHOOTING PCB Error Code Summary Recording CODE Display Cause Release Operation Record Location Control Er50 Invertor Er. Control PCB Power IC error Auto release Stop Control Er51 Invertor DE Er. IPM Breakdown error Auto release Stop Control Er52 Invertor Comm. Inverter communication error Auto release Stop Control...
  • Page 10 TROUBLESHOOTING PCB Error Code Troubleshooting ERROR Cause / Remedy CODE / Display • Cause : No mix ER 0 (Stop operation, release after mix refill, Keep display until refill, Voice alert every five minutes) • Occurrence : No mix in hopper for 5 seconds •...
  • Page 11 TROUBLESHOOTING PCB Error Code Troubleshooting ERROR Cause / Remedy CODE / Display • Cause : Ambient thermistor probe for Condenser OPEN ER 5 • Occurrence : When It detects input voltage is over 4.85V for 20 Air. Se seconds nsor O •...
  • Page 12 ER7-TROUBLESHOOTING EMPR(EOCR) setting in case of ER7 with a brand-new machine Step 1 Disable over current detection function in section 4 Section 4 - Advanced Technician setting -Press SET and SELECT at the same time for 3 seconds. -Pass code 1111 for entry of the section 4 menu. -Press SET to navigate or move in menu -Press up and down arrow in setting change -Press SET to save a setting change.
  • Page 13 ER-7 TROUBLESHOOTING EMPR(EOCR) setting in case of ER7 with a brand-new machine Step 1 Disable over current detection function in section 4 -Navigate to 4-36 by pressing SET continuously -Default is E.on for ISI-163TT and E.off for ISI-300TA, 203 and 303 -Change E.on to E.off by using up and down arrow It is disabling over current detection function for beater motor.
  • Page 14 ER7-TROUBLESHOOTING EMPR(EOCR) setting in case of ER7 with a brand-new machine -Turn RC 10 A to 15A by using screw drive -Turn O-Time 3 seconds to 5 seconds -Switch off and back on the machine and press AUTO If section 4-36 is E.oFF and there is no EMPR component with a machine, -Move to section 4-36-2 -Change 1.0A to 5.0A by using up arrow...
  • Page 15 TROUBLESHOOTING PCB Error Code Troubleshooting ERROR Cause / Remedy CODE / Display • Cause : High pressure cut out on compressor ER 8 (Stop operation, Auto release when pressure drops, Display error, Voice <error guide every minutes) recorded> • Occurrence : Display error when high pressure cut out occurs for 10 High seconds.
  • Page 16 TROUBLESHOOTING PCB Error Code Troubleshooting ERROR Cause / Remedy CODE / Display • No ice cream formation ER 9 (Continue operation, Display error every 5 minutes, Voice guide for every 5 <error minutes) recorded> • noLA Cause : Amp doesn’t approach to set point for setting time Amp draw keeps in range of No ice cream determination amp set point at [9-11-1] and it continues for No ice cream determination time set point at [9-11-2]...
  • Page 17 TROUBLESHOOTING PCB Error Code Troubleshooting ERROR Cause / Remedy CODE / Display • When condenser suction temperature is greater than 109.4F ER 13 (Continue operation, Not keep display, Voice guide every 5 minutes) <error • Occurrence : When condenser suction temperature is greater than recorded>...
  • Page 18 TROUBLESHOOTING PCB Error Code Troubleshooting ERROR CODE / Cause / Remedy Display • Evaporator thermistor sensor OPEN ER 19 • Occurrence : When It detects input voltage is over 4.85V for 20 seconds Eva. Se • Release : When it detects input voltage is less than 4.85V for 20 seconds nsor Op •...
  • Page 19 TROUBLESHOOTING PCB Error Code Troubleshooting ERROR Cause / Remedy CODE / Display • ER 50 Communication error in Control PCB Power IC • <error Occurrence : When communication is in error recorded> • Release : When communication is restored Invertor •...
  • Page 20 TROUBLESHOOTING PCB Error Code Troubleshooting ERROR CODE / Cause / Remedy Display • ER 55 Over heating from Invertor Heatsink • <error Occurrence : When error is received from Invertor PCB recorded> • Release : Error is cleared from Invertor PCB Invertor •...
  • Page 21 TROUBLESHOOTING PCB Error Code Troubleshooting ERROR CODE / Cause / Remedy Display • ER 60 Protection of Over-power than Invertor max <error power(2.7Kw) recorded> • Occurrence : When error is received from Invertor PCB Invertor • Release : Error is cleared from Invertor PCB •...

  • Page 22: Other Troubleshooting

    TROUBLESHOOTING Other Troubleshooting When valves are out of order Symptoms / Remedy Item • No change in barrel temperature • #1Solenoid No amp rise • valve ( No level increase Barrel cool cycle) • Remedy : Replace the valve • Temperature rise in hopper •...
  • Page 23 TROUBLESHOOTING Other Troubleshooting When valves are out of order Symptoms / Remedy Item • No heat either hopper or barrel • 4 way valve Remedy : Replace the valve...
  • Page 24 TROUBLESHOOTING Other Troubleshooting When ice cream level doesn’t rise in AUTO mode Possible Cause Action Not read no load amp Stop, Warm up, Power reset Feed tube is blocked Clean feed tube to remove butter fat lump Blade is worn down Replace blade Freezing cycle Check high side and low side...
  • Page 25 TROUBLESHOOTING Other Troubleshooting When ice cream viscosity is no good Possible Cause Action 3-1 Set point is lower Increase 3-1 Set point by 0.1~0.2A than factory guide Mix product needs Increase 3-1 Set point by 0.1~0.2A Higher set point Check freeze down time Count and compare usual freeze down time If freeze down time takes longe Check pressure of high side and low side...
  • Page 26 TROUBLESHOOTING Other Troubleshooting Usual freeze down time at 80F Recovery Time for Time to the first a new serving Model/Part Number freeze down at after a full consecutive draw (3 oz. per serve) ISI-161TI 6 mins. 50secs 2 mins. ISI-161TH 7 mins.

This manual is also suitable for:

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