What does H04 mean on Westinghouse dishwasher?

Hours x 22 delay before starting.

H22 means the dishwasher set for a delay start ie it will start after 22 hours. If u keep pressing + button and get that sign to H00 and then start your dishwasher it will start immediately.

Westinghouse WSF6606X (Stainless Steel) Questions (page 6)

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google westinghouse dishwasher wsf6608x error codes f5

F5 signals an error in the water supply line, which may mean that the tap is not open far enough or that there is an error in water pressure

Westinghouse Dishwasher F5 Error - Water Level Fault

https://www.justanswer.com/appliance/7mrex-dishwasher-will-not-start-my-dishwasher-displays-h-15.html

Call Contact Customer Service at 1-800-726-0190.

Error cade h04 on Bosch dishwasher - held down Start button (not on/off button) for 3 seconds or until it showed one of the cycles not the h04 error then select your cycle and turn it on normally - saved me some cash I am sure

Need more information; Model? Malfunction?
Error Code h22 Not found
Error Code 20 is failure to drain STOP, OFF and SHUTDOWN
http://kitchen.manualsonline.com/manuals/mfg/westinghouse/wsf6602.html?p=15

H04 means the inner cooking pan is not inserted. Look at page 24 of this manual: https://www.zojirushi.com/servicesupport/manuals/manual_pdf/npgbc_05.pdf

this is a fuser error H04 01 Heat roller low temperature check the fuser (fixing unit)