Drain pump pressure switch cap is leaking and the switch is very warm all the time, is that normal. the pressure sw cap is pn# 22003268.

F09/E01 are related codes.

LONG DRAIN: If the drain time exceeds 8 minutes without reaching reset level in pressure sensor, the valves are turned off and the drain pump will stop running. NOTE: Suds can cause delays in draining. Washer drains for 4 minutes, pauses 5 minutes, then tries again for 4 additional minutes of draining. F9E1 will display if washer does not drain. (Normal drain takes less than 2 minutes)

Possible Causes:
Verify that the drain hose is not blocked or kinked.
Make sure drain hose is not sealed into drain pipe.
Make sure the drain hose height does not exceed 96" (2.4 m).
Check/clean drain pump filter of foreign objects.
Check connections from tub to air trap, air trap to pressure hose, and pressure hose to pressure sensor.
See TEST #8 (Drain Pump) on page 19. Is pressure hose pinched, kinked, plugged, or leaking air?Is pressure hose pinched, kinked, plugged, or leaking air?Is pressure hose pinched, kinked, plugged, or leaking air?
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P1494 Leak detection pump pressure switch or mechanical fault

Check your pressure tank, sounds like bladder has a leak. Unscrew cap on valve on pressure tank (looks like valve on car tire where you add air to tire) turn cap upside down and use, or small screwdriver to depress valve, if water comes out bladder has burst and replace pressure tank. If not then check bladder pressure with tire gauge. Correct settings are clearly posted on pump. Then add air to pressure tank or remove air to correct pressure. Use a accurate pressure gauge.

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It could be the water pump , or something else , like a faulty thermostat. Where is the coolant leaking from ? If it is leaking from the water pump , then yes , your pump might be toast.
If the thermostat is no good , the engine will warm up to normal temp , and then overheat quite quickly. As it overheats and the coolant expands and boils , it could back up into the overflow reservoir and leak out onto the ground. You need to get someone to diagnose the problem ASAP , running your engine in an overheat condition could very quickly blow your head gasket and/or warp a cylinder head. If you can , please post a bit more info. Does it run but at a higher than normal temp. Does it only overheat when stopped in traffic etc.
Could be water pump , or thermostat , or plugged up radiator , or nonfunctioning cooling fans.

Remove the rear access panel to check the source of the leak. The drain pump is most probably broken or the sump hose is damaged or detached from the tub.

Drain Pump Removal/Replacement Procedure (Maytag Neptune MAH5500B)

1. Safety first. Unplug the machine.
2. Remove the hose clamps and hoses from the pump.
3. Disconnect the wiring harness from the pump and the pressure switch terminals.
4. Rotate the pump assembly counterclockwise and remove it from the base of the washer.
5. Remove the plastic bag covering the pressure switch.
6. Press in the locking tabs on the back of the pressure switch and pivot the pressure switch off the pump bracket.
7. Grasp the pressure switch and lift the nipple off the pump cap.
8. Install the pressure switch on the new pump in reverse order of the removal steps.
   
9. Install the new pump in reverse of the removal steps above.

That is water in oil mate, remove your radiator cap and drain all your oil immediately and fill the engine with 40%diesel and 60%normal car engine oil, not the good stuff start up the engine for 2min do not rev at all. Drain and fill up with car engine oil and start up again do not rev and do not warm up engine. Do all this with the radiator cap off. Then mate get help you did all the above to get rid of all potential rust, you might have blown a head gasket or the water pump seal is leaking water into the engine. Remove the waterpump and ask a radiator shop to pressure test it and check for leaks. if it is not your waterpump a gasket might be blown.

Hi
f21 is long drain, failed to drain in 8 mins.If unit did actually successfully drain normally then pressure sw is likely the problem. 
1. did pump come on? if no replace pump
2. is unit draining at normal rate? no then clean pump.
if yes on both replace pressure sw.
to second poster if getting suds error when using HE then you likely are using to much detergent. If avail run a clean washer cycle.
or normal cycle with bleach or fabric softner, no clothes..

please rate my suggestion..

f21 is long drain, failed to drain in 8 mins. f27 is overfill, overfill contacts on pressure sw closed. If unit did actually successfully drain normally then pressure sw is likely the problem.
1. did pump come on? if no replace pump
2. is unit draining at normal rate? no then clean pump.
if yes on both replace pressure sw.
to second poster if getting suds error when using HE then you likely are using to much detergent. If avail run a clean washer cycle.
or normal cycle with bleach or fabric softner, no clothes