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Refrigerator Tips
Refrigerator

Whirlpool / Kenmore / Frigidaire Under the Counter Ice Machine
   
Problem Solution
No Ice
  • Dirty Condenser Coil, Clean, Vacuum Coil
  • Dirty Evaporator coil or water recirculation system, Clean with Ice Machine Cleaner
  • Water Recirculation pump locked up and not running water over evap. coil
  • No freon in sealed system. Check evap. coil frost pattern. Should be even if irregular, suspect refrigerant problem. If suspect Refrigerant problem check evap coil for oil and freon leaks.
  • Water inlet valve not putting enough water into water reservoir
  • Water inlet valve not shutting off and dripping water into the reservoir during freeze cycle causing water temp not to drop.
  • Door gasket has fallen off and warm air is migrating into the icemaker bin. Note: There are 2 gaskets. One On the door and one that runs around the door opening of the ice maker. The one on the door is the one that falls off.
  • Ice Cutting Grid Dirty or worn out or wires broken. Replace or clean grid
  • No voltage to grid. Check for fuse behind control panel and voltage 30 vdc from transformer.
  • No ice after disassembly and reassembly.... Check that when Ice harvests and is suppose to slide off of evap. coil on to grid that it's not hanging on the recirculating reservoir
  • Broken Weld on the perch for the ice thickness control bulb. If this happens, the ice machine will create the slab on the coil, but never cycle and dump the slab onto the grid. This will require replacement of the evap coil by a qualified servicer.
Low Ice Production
  • Dirty Condenser Coil, Clean, Vacuum Coil
  • Door gasket has fallen off and warm air is migrating into the icemaker bin.
  • Water inlet valve not putting enough water into water reservoir
  • Water inlet valve not shutting off and dripping water into the reservoir during freeze cycle causing water temp not to drop.
  • No freon in sealed system. Check evap. coil frost pattern. Should be even if irregular, suspect refrigerant problem. If suspect Refrigerant problem check evap coil for oil and freon leaks.
No water in Recirculating Bin
  • Check water Inlet valve.
Ice Cutting Grid Not cutting Cubes Broken wire or dirty grid. Clean Ice maker grid with ice maker cleaner or replace grid.
Normal Operation / How it Works
The compressor is running and circulating refrigerant through the evap coil in the cool cycle.  The water circulating pump is circulating the water over the coil. The condenser fan is running. The water freezes to the coil and forms a slab of ice. 

The thickness control thermostat is attached to the under side of the evap coil. Once the ice is thick enough or the coil is cold enough, the thickness thermostat turns off the water circulation pump and energizes the hot gas solenoid causing the hot refrigerant to flow into the evap coil warming it causing the slab of ice to slide off on to the cutting grid. It also energizes the water inlet valve to refill the reservoir.

The thickness control then cycles back to the cool position and the cycle repeats.

The slab of ice on the grid gets cut by the warm cutter grid wires.

   

  

Normal Consumer Maintenance / Cleaning The Ice Machine

The minerals rejected from the circulating water during the ice-making cycle may eventually form a hard scaly deposit in the water system, inhibiting the release of the ice slab from the evaporator.

It is therefore necessary to periodically clean the unit's water system to remove the mineral scale build-up. The frequency of cleaning will depend on the hardness of the water.

To clean the water system:

1. Set the service control switch to the "OFF"
position.

2. Open the bin door and remove the 2 thumb screws that secure the ice cutter grid. Slide out the cutter grid, and unplug the grid wiring harness.


If there is ice on the cutter gird, melt it off under running warm water in sink. Do NOT try to pick the ice off the grid wires.

Any ice on the grid should be melted under running warm water. Attempting to pick the ice slab off the grid may stretch and damage the grid wires.

3. Remove all of the ice from the bin and from off
the evaporator freezing plate.

4. Remove the drain plug on the bottom of the water reservoir pan, When the pan is completely drained, replace the drain plug.


5. Pour 1/2-gallon (approx. 2 liters) of hot tap water into the water reservoir pan. Turn the service control switch to the "CLEAN" position. Allow the hot water to circulate for 5 minutes.

This will warm the system and make the cleaning solution more effective.

WHEN USING POWDERED ACID CRYSTALS TO MAKE A CLEANING SOLUTION, USE ONLY CITRIC ACID. DO NOT USE POWDERED PHOSPHORIC ACID.

6. While the hot water is circulating, prepare the
ice maker cleaning solution.

ALWAYS WEAR GLOVES WHILE HANDLING ICE MAKER CLEANER.

Preparing cleaning solution from acid crystals

Citric acid crystals are available from most pharmacies and some plumbing supply houses. Mix 6 oz. (170 gm) of powdered citric acid crystals into 1/2 gal. of hot water.

NOTE: Always mix the crystals into the entire 1/2 gal. of water.

Using a commercially prepared cleaning solution

Commercially prepared liquid ice machine cleaning solutions are available from our parts department You can find them here  http://www.american-appliance.com/parts.html



WHEN USING A COMMERCIALLY PREPARED LIQUID CLEANING SOLUTION, USE ONLY A CITRIC ACID BASED SOLUTION, OR A COMBINATION OF CITRIC ACID AND PHOSPHORIC ACID BASED SOLUTION. DO NOT USE MURIATIC ACID OR ANY OTHER ACID NOT APPROVED FOR USE IN A FOOD MACHINE.

ALWAYS WEAR GLOVES WHILE HANDLING ICE MAKER CLEANER.

Carefully follow the instructions on the bottle of ice maker cleaner to prepare 112 gal. (approx. 2 liters) of cleaning solution.

Personal Injury Hazard

Most ice machine cleaners are citric or phosphoric acid which can cause irritation even after dilution. In case of contact with eyes, flush eyes thoroughly with fresh water and contact a physician immediately. In case of contact with skin, rinse well with water. If

swallowed, give large amounts of water and contact a physician immediately. Do not
induce vomiting. KEEP OUT OF REACH OF CHILDREN.

7. Turn the service control switch to the "OFF" position. Drain the hot tap water from the water reservoir pan. Replace the drain plug when the pan is empty.

8. Turn the service control switch to the "CLEAN" position. Carefully pour the entire 1/2 gal. of cleaning solution into the water reservoir pan.

If the cleaning solution starts to foam when it is poured into the pan, stop pouring until the foaming stops. Then resume pouring.

9. Allow the cleaning solution to circulate until the mineral build-up on the evaporator freezing plate has dissolved.

If at the end of 30 minutes the mineral build-up has still not dissolved, turn the service control switch to the "OFF" position, and carefully drain out the cleaning solution. Mix another 1/2 gal. of solution and add as before.

Repeat the cleaning cycle as necessary until all of the mineral build-up has been dissolved.

10. While the cleaning solution is circulating, clean the cutter grid by dipping it into a pan of prepared cleaning solution.

After allowing the grid to soak for approximately 15 minutes, use a hard bristled brush to scrub the wire connectors and insulators around the edge of the grid.

Rinse the grid under running water in the sink.

11. Clean the scale off of the side flanges of the evaporator freezing plate with a plastic scrubber dipped into the prepared cleaning solution.

Always scrub in the direction of water flow (from front to back on the side of the plate).

12. After draining out the cleaning solution from the water reservoir pan, add 1/2 gal. of fresh water and allow it to circulate for 5 minutes. Drain, and repeat the rinsing process at least one more time.

13. Wash out the bin and the inside of the bin door with a soft cloth and a warm water and baking soda solution.

14. Clean the exterior enamel surfaces and the gaskets around the door with warm water and a mild soap or detergent. Rinse and dry after washing.

Do NOT use a harsh or abrasive cleaner on the exterior surfaces.

Use of a good household appliance cleaner and wax will help protect the exterior finish of the ice maker.

15. Replace the cutter grid. And make certain the drain plug has been replaced in the bottom of the water reservoir pan. Turn the service control switch to the "ON" position and begin normal operation of the ice maker.

It is also necessary to periodically clean the air-cooled condenser to ensure efficient operation of the ice maker.

WARNING  Personal Injury Hazard

Be sure the ice maker is OFF and disconnected from the main power supply. Condenser fan rotation, sharp condenser fins and hot tubing could cause personal injury.

To clean the condenser:

1 . Make sure that power is disrupted to the ice
maker.

2. Remove the two (2) screws at the bottom of the grille and remove the grille and lower panel assembly.

WARNING Personal Injury Hazard

Do not operate ice maker with lower access panel or control panel removed. Personal injury could result.

3. Using a soft brush or a round dust brush attachment on a vacuum cleaner, remove lint and dirt from the condenser fins.

CAUTION
Condenser fins can bend easily. Use care when vacuuming the condenser to keep from bending the fins.

4. Use a vacuum cleaner to remove dirt from the bottom of the unit compartment.

5. Replace the lower panel and grille assembly. Reconnect the power supply.


MAKE SURE THE INSTALLATION AND OPERATION OF THE ICE MAKER CONFORMS TO ALL APPLICABLE LOCAL CODES.

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Nickel Safe Ice Machine Cleaner

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Broken Weld on the perch for the ice thickness control bulb.
If this happens, the ice machine will create the slab on the coil, but never cycle and dump the slab onto the grid.
This will require replacement of the evap coil by a qualified servicer.

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Or If You Prefer  The Service Dept.


All of the information is provided FREE OF CHARGE. No liability is assumed by
American A/C & Appliance, any of it's employees, or it's provider for the accuracy of
the contents or damages caused by the use of these procedures.

copyright 1997-2001  American A/C & Appliance Co.
No part of this website may be reproduced or copied without the prior written permission of American A/C & Appliance Co.

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