System not maintaining cooling temperature and pings after one hr of two

There is no bleeder screw , don't need it if done correctly.
Important: It is necessary to maintain the coolant level at the top of the surge tank label to insure all the air has been purged from the cooling system.
Fill the cooling system.
Slowly add a mixture of 50/50 DEX-COOL and clean, drinkable water. Refer to Approximate Fluid Capacities in General Information.
Important: It is necessary to maintain the coolant level at the top of the surge tank label to insure all the air has been purged from the cooling system.
Install surge tank cap.
Start the engine.
Run the engine at 2,000-2,500 RPM until engine reaches normal operating temperature.
Allow the engine to idle for 3 minutes.
Shut the engine off.
Allow the engine to cool.
Top off the coolant as necessary.
Inspect the cooling system for leaks.
Rinse away any excess coolant from the engine and the engine compartment.
Inspect the concentration of the engine coolant using J 26568

What are you working on? Keep in mind that even thou you replaced a part. That does not mean that part is ok. Do you have or can you borrow an infrared thermometer? This tool is great to look a various components and checking coolant temperatures while the engine is warming up. It will provide fast correct surface temperatures on the engine, head, water pump, both sides of the thermostat, hoses and radiator. This will help let you know at what temperature the thermostat is opening. How well or poor the coolant is circulating, At what temperature the cooling fan is turning on and how well it is cooling the radiator. The cooling system is simple but there is still a lot going on. The cooling system has to maintain proper pressure. Too little (leak, bad cap) or too much (head gasket) will cause a failure. Also coolant needs to be replaced every 3-5yrs. Old antifreeze will cause all types of problems. Please write back. Tell me anything you can about maintenance history or anything new you find. I will do my best to help. Good Luck.

Yes there is a one degree tolerance, in fact my heater just kicked on and it is set to 67 and the inside temperature reads 67. It is also a Honeywell.

Those may be the upper and lower limits. For cooling you would not want the system to allow the temp to rise above 85. Conversely when heating you would not want the heating system to go below 65.

Good day!!!!

When working properly, the thermostat turns the compressor on and off. Once the thermostat turns the compressor on, it will run until the temperature inside the refrigerator is lower than the setting of the thermostat. Make sure that the refrigerator has enough air clearance on all sides. Refrigerators with a condenser coil grid on the back of them need room to radiate the heat away from the coils.
Verify that the door light switch is working properly. Push the switch with your finger to verify the light is turning off. If the light stays on, it will actually warn the interior of the refrigerator. Fix or replace the switch if it is faulty.
Modern refrigerators that have a lot of storage and large freezer compartments run for longer periods of time. They also start and stop very frequently to maintain an even temperature. This is especially true if you have just put a lot of warm food in the refrigerator, or if it is very hot and humid. It can take several hours to get back to the cool temperature you have it set for after putting a large amount of food in it.
If the compressor is not shutting off when the temperature inside the refrigerator is cold enough, you may have a bad thermostat. You may also have the temperature set too high in the refrigerator. Try adjusting the thermostat to a lower temperature. If this turns the compressor off, you had it set too high. With the help of a refrigerator thermometer, you can find a more ideal setting that will keep your food cold, but not so cold that the compressor is always running. If raising the temperature setting doesn't help, it may be a problem with the thermostat and you will need to replace it.
If your thermostat is working properly, there's a chance that you have low levels of refrigerant in the sealed system. If this is where the symptoms lead you, you need to contact a professional appliance repair person. Only an EPA certified technician can legally work on a sealed system. If you attempt to do work on this system, you will void the warranty.
If this is a new refrigerator, it will run for a long time, almost constantly, before it gets cooled enough to stabilize the interior temperature. Allow up to 24 hours for it to stabilize. The refrigerator should be at least one half to two thirds full. This will help to maintain a stable temperature inside the unit. The cold items inside will help to keep an even temperature inside after the door has been opened and closed. Some people prefer to keep a lot of stuff in the refrigerator as ballast, even jugs of water. This helps to maintain temperatures inside so that when the door gets opened and closed often, it doesn't need to run as much to maintain the temperature inside.

I hope this information will be helpful...Thanks for using fixya...

If the fridge part of your Zanussi ZX97/5SI fridge/freezer is no longer keeping cool, while the freezer part is still working fine, there could be a few possible causes:

1. Thermostat malfunction: The thermostat controls the temperature inside the fridge. If it is malfunctioning, it may not be able to maintain the correct temperature, causing the fridge to get warm.
2. Air circulation problem: If the air is not circulating properly inside the fridge, it may not be able to maintain the correct temperature. This could be caused by a dirty or blocked air vent, a malfunctioning fan motor, or a problem with the door seal.
3. Evaporator coils are iced up: The evaporator coils are responsible for removing heat from the fridge. If they become iced up, they will not be able to function properly, causing the fridge to get warm.
4. Compressor issue: The compressor is responsible for pumping refrigerant through the cooling system. If the compressor is not working properly, it may not be able to pump refrigerant through the system, causing the fridge to get warm.
5. A malfunctioning control board: The control board is responsible for managing the functions of the refrigerator, if it's malfunctioning it may cause the fridge not to maintain the correct temperature.

A thermostat is a device for regulating the temperature of a system so that the system's temperature is maintained near a desired setpoint temperature. The name is derived from the Greek words thermos "hot" and statos "a standing". The thermostat does this by switching heating or cooling devices on or off, or regulating the flow of a heat transfer fluid as needed, to maintain the correct temperature.

Remove and inspect the spark plugs for heavy deposits or glazed-looking interior insulators. Make sure the plugs are the proper type for this engine. Heavy carbon build-up in the cylinder heads will cause pinging. If the ignition system is too advanced, it will also cause problems. Try a different brand of fuel. High engine temperatures can do the same (caused by poor cooling system or lean fuel/air mixture). If the check engine light is on, take the car to Autozone or a similar business that offers a free scan of the computer. This may provide additional clues. Hope some of this helps!

With the system cold, fill the radiator with a 50/50 antifreeze and water mixture - fill it all the way to the top, then put the cap back on. Now, fill the plastic overflow bottle about 1/2 way with your antifreeze solution.
Ride the bike until normal operating temperature is achieved (or longer, if you like). Now park it and let it cool down again. Then, check the coolant level in the overflow bottle and add more antifreeze, if needed.
When you operated the engine until normal operating temperature was achieved, all air trapped in the cooling system gets pushed out by the expanding coolant (out through the overflow bottle and into the atmosphere). Then, during the subsequent cool-down period, only liquid is drawn back into the radiator from the overflow bottle as the engine coolant cools and contracts, not air. From this point, as long as the radiator cap is not removed - and the overflow bottle is maintained at the 'full' level, no air will enter the system.

Cheap service tech rates.