Good day My Kelvinator dishwasher KD12MM1 keeps on giving me the error when the normal & eco lights flikker together - which indicate that a longer heating time is requered,not reaching heating temp. & that there might be a problem with the temperature sensor or heating element according to the manual. I have cleaned all the sprayer arms & filters thoroughly,but still the problem occurs. Can someone pls.help me? Thank you Juanita