Mold.
during the defrost cycle of a forced draft low temperature evaporator, the evaporator fan would?
This is a assembly of a coil of copper or alumnium tubing and fins inside the house heater unit that cools down for the furnance blower to send cold air to the living spaces.
A fluid is passed around a copper pipe wound into a coil, the coil is covered in ethenol (or another liquid with a low boiling point) as the ethenol evapourates it cools the pipe in turn cooling the fluid inside, working much the same way as sweating, the coil aspect saves space and increases surface area.
Any refrigeration or AC evaporator coil has a tendency to ice up when they get cold. Water condenses on the coil when the air is cooled. That water can then freeze. If an AC system is operating correctly it will cool the air and eventually when room temperature reaches the set point the AC unit will turn off, this give any ice that has formed on the evaporator coil a chance to melt. If the system is low on charge, the room may never reach the set temperature and therefore will not shut off. The ice will continue to build on the evaporator coil until it is completely iced over. A dirty evaporator coil can cause this as well, so change your filters often. Another possibility is the ac system has to be matched to room or house size. Too small and too large a system will both cause you problems.
There are 4 reasons why an A/C system will freeze up. The first and most common is dirt. A dirty filter or evaporator coil will restrict airflow which lowers evaporator coil temperature (Near furnace inside). A dirty blower wheel will not move enough air either. Second is low refrigerant. Third is the least common and most expensive to find and repair. A restriction in the refrigerant system. If you have a restricted metering device in the evaporator coil or anywhere else in the system it will cause a temperature drop across the restriction. How much of a drop depends on how bad the restriction is. Reason 4 is a bad contactor on your outside unit that is not allowing it to turn off when the furnace turns off.
to hide
By measuring its resistance with an accurate multimeter provided the coil is not blown. If less resistance compared to that of the other coil would decide that it is less number turn.
I would suspect that the pink rug would then turn black.
yes
you turn the little coil of wire on the side.
A CT doesn't have a 'pressure coil'! Reword your question.
Bad ignition coil? Bad fuel pump?