Why is there a perpetual 'machine heating up' message and it doesn't heat?

The issue you are describing with your Saeco Exprelia Evo coffee machine, where it displays a "heating up" message and then restarts without any error message, could be caused by a few different issues. Here are a few things you can check:

1. Check the water tank: Make sure that the water tank is properly filled and that there are no blockages in the water supply line. If the water tank is empty or there is a blockage in the water supply line, the machine will not be able to heat up properly and will display a "refill water" message.
2. Check the brew group: Make sure that the brew group is properly seated and that there is no debris or blockages preventing the flow of water through the brew group. If the brew group is not properly seated or there is a blockage, the machine will not be able to heat up properly.
3. Check the heating element: Make sure that the heating element is functioning properly. If the heating element is not functioning properly, the machine will not be able to heat up.
4. Check the thermostat: Make sure that the thermostat is functioning properly. If the thermostat is not functioning properly, the machine will not be able to heat up properly.
5. Check the boiler pressure switch: Make sure that the boiler pressure switch is functioning properly. If the boiler pressure switch is not functioning properly, the machine will not be able to heat up.

If none of these steps resolve the issue, I would recommend contacting the manufacturer's customer support for further assistance. They may be able to provide additional troubleshooting steps or may recommend a qualified technician to repair the machine.
It's worth noting that these type of issues are usually caused by a malfunctioning component, and that attempting to fix it without proper knowledge could cause more damage and might void the warranty.

In the case of insufficient heating appears error code E60 what means replace the NTC sensor. Exclude heater, PCB or relay malfunction because you indicate that the machine is heated to 50 degrees Celsius.

Dado

Hello there and welcome to fixya there are several things that could make this dryer not heat up
Here are the most common things

Thermal Fuse

If the dryer doesn\'t heat, but the drum
turns, check the thermal fuse(s). The thermal fuse protects the dryer
from overheating and helps to prevent fires. If the thermal fuse is
blown, it will have to be replaced.




Enter your model number to see parts for your dryer.

Help me find my model number

Gas Valve Solenoid

The gas valve has two or more electric
solenoids which open the valve to let the gas flow into the burner
assembly. If the dryer doesn\'t heat one or more of the solenoids may be
defective. If the igniter glows for 90 seconds but the burner flame
doesn\'t light, replace these coils as a set.


Dryer Igniter


If the dryer doesn\'t heat, the igniter might
be burned out. Check the igniter for continuity with an ohm meter. Dryer
igniters burn out over time, similar to a light bulb.

Heating Element

The heating element on an electric dryer can
burn out over time. If the dryer doesn\'t heat, the element should be
checked for continuity. The heating element cannot be repaired and must
be replaced if defective.

Heating Element Assembly

the heating element assembly on an electric
dryer can burn out over time. If the dryer doesn\'t heat, the element
assembly should be checked for continuity. The heating element assembly
cannot be repaired and must be replaced if defective.

Flame Sensor



Gas dryers have a flame sensor to detect the
heat given off by the flame. If the dryer doesn\'t heat, the flame sensor
might be defective. Check the flame sensor for continuity. This is not
as common as a burned out igniter or thermal fuse.


High Limit Thermostat


Although not common, if the dryer doesn\'t
heat the high limit thermostat can be defective. It can be checked for
continuity. If the thermostat is "open" the dryer doesn\'t heat.


Cycling Thermostat




The cycling thermostat regulates the
temperature of the air in the dryer. If the dryer doesn\'t heat it may be
caused by a defective cycling thermostat. This is not common.


Main Control Board

The main control board is normally not at
fault when the dryer doesn\'t heat. Check all of the other components in
this troubleshooting guide before replacing the main control board. The
main control board cannot be tested easily and must be replaced if it is
defective.


Timer
The timer is normally not at fault if the
dryer doesn\'t heat. In many situations where timers are replaced they
end up being returned. Check all of the more common components in this
troubleshooting guide before replacing the timer

The possible fault could be due to the failure of the heating coil, failure of the control panel or the output drive to the heating coil or it can be one of a loose connection joint of the wiring to the heating coil. You need to recheck the selected program and then check the wiring to the coil. It is important to understand the working of a continuity tester to check the line and the coil which should address the fault. If there is no output from the board then it might be fault of the drive output or the loss of output from the processor which might need tracing of the voltage to the heating coil output. .

Check your filter cycles and switch spa into Standard Mode as you have it in Economy. (In Economy mode it will only heat during the filter cycles).
If the Ecn or Ec Message is Alternating with the Water Temperature on the Display, the Spa is Operating in the Economy Heating Mode.

If the Ecn or Ec Message is ON Solid (Not Flashing) on the Display, the Spa is Operating in the Economy Heating Mode, but there is No current water temperature because the Spa is between Filter Cycles.

Ecn or Ec is Alternating with Temp:
The Spa is Operating in the "Economy" (Ecn or Ec) Heating Mode.

The Water Temperature is Sampled Only during Programmed Filter Cycles. The Heater will Only operate and Heat up to Set Temperature during the Filter Cycles. The Water Temperature will probably drop Below Set Temperature between Filter Cycles. Other Heating Modes are Standard, Standard in Economy, and Sleep Modes.

Ecn or Ec is ON Solid (Not Flashing):
The Current Water Temperature is "Unknown" (- - - or - -) while in Economy or Sleep Mode.

Between Filter Cycles, while in the Economy or Sleep Heating Modes, the Pump has not turned ON and the Last Water Temperature is not Current. To read the Current Water Temperature, either Change to Standard Heating Mode or turn On the Heating Related Pump, and wait at least 2 Minutes.

Is it electric or gas? Most likely u have a blown thermostat or fuse. Could also be a bad heating element if electric. Or bad solenoid coils if gas

Hi. Could be pressure switch or vaccum valve. To check If the vaccum valve is faulty, try leaving the steam taps open while it is heating up. If it heats up normaly like it supose to than you vaccum valve is stuck. Shouldn't take too long. If it doesn't heat up fast but still heats then that could be element. If it doesn't heat then your pressure switch is faulty. Dazza

Hi
If it heats with the steam switch, its your brew thermostat. If it doesn't, its your heating element.

Mine had the same problem ... all the lights are on, grinding works fine, but no heat on the plate, and no dripping of water.

After a weekend on the workbench, I mastered this machine. The KM7005 has 2 x MicroTemp G4 thermal cutoff (TCO) fuses which interrupt the Live line, for overheat protection. Mine didn't overheat per se, but the TCO blew anyway. Not reset-able ... need to be replaced with a soldering iron. To date, I have helped 13 people on this site fix this exact problem.

I'll be happy to advise you to fix this, or fix it for you. Write me at [email protected].