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heating systems or cost of running them vary how big a building is and how insulated it is affect the cost and efficient the furnace is
The immediate possibility - is a leak in the system somewhere. If the system is leak-proof, the pressure should remain constant - no matter what time of day it is. The only time there should be a pressure difference - is when the boiler is running. Your best solution - would be to get your system checked by a qualified service technician.
Have you rotated the gas valve knob to "run". Have you turned up the thermostat? Is the pump running? No pump water flow - no heat -- no filtration. Is the filter clean? When was the last time you cleaned the filter? Ken
Poor Airflow due to a dirty filter,dirty evaporator,dirty blower wheel, bad or weak run capacitor, or even a bad bearing in the fan motor causing it to overheat and shut off on overload while the compressor still runs, thus causing the unit to freeze up. On some systems it is possible that when the thermostat is satisfied and the indoor blower motor shuts off, the compressor could keep running if the contactor is sticking for 1 reason or another. Examples of this would be fireants or ladybugs in contactor or just an old contactor that has burnt points that stick some or all the time after running and getting hot. -Brad75-
It maybe the Thermostat if it bad the 4.3 will quit and not start untile it cools down
Thermostat turned all the way up,thermostat defective, thermostat wired incorrectly, heating unit wired incorrectly, fan or heat relay stuck closed are the things I would look at to start.
If your fan clutch is working properly and your thermostat is good then it should not overheat.
Most likely the thermostat spring is weak, or the thermostat is sticking, causing the thermostat to open too early and stay open too long. This will cause water to circulate to the radiator, causing the temperature of the cooling water to fall below the target temperature, and so the temp guage falls. then eventually the thermostat closes some, and the temp starts to rise again (and so on)
check to see if the thermostat is hung open or your temperature sensor for your fan is out and causing your fan on your radiator to run continuously when key is on.
assuming coolant is full, electric fan might be inop. radiator blockage, head gasket, thermostat,water pump Its your thermostat or you have leak of coolant.If is first your thermostat stay closed so the coolant in the motor is in constant heating.If you try to to use heating in your car simply you will not have a heating because worm coolant stay in motor.
That depends on the thermostat. If it's a 185 thermostat, the engine should run at 185. If it's running too hot, check the thermostat, radiator and water pump. If it's running too cold, replace the thermostat.
Bad thermostat, bad high limit switch. Check to make sure that its just not the fan running which makes it look like the furnace is running. If you check, and find the furnace is running and is still firing, shut it down and call a hvac company.
could b thermostat going, radiator cap bad or it may just be dirty/broken down coolant that needs to be changed.
You have to turn on the heating by running on top of the thermostat. Return and jump up the rubbish to get on the bed and jump over the fan.
The thermostat controls only the temperature of the water.
Replace it with the exact same temperature thermostat as the one you removed. Do not run the engine without a thermostat. The thermostat is required to keep the engine running at the optimum temperature that will give the best performance and mileage. If it is overheating running it without a thermostat is not the solution.
For a 2.4 litre engine, where the pressure cap is that is the thermostat housing..if you try to remove the pressure cap (in cold temperature only) you will see the thermostat..A damaged thermostat can be diagnosed when an engine running is at above normal temperature by squeezing the radiator hose connected to the thermostat housing..if there is no coolant running in it the thermostat is close then replace it.