Fixing baumatic BD1631?

My baumatic bd1631 is starting up and running for a while before beeping and stopping, flashing the economy wash light. Manual tells me outlet hose may be crushed or kinked, but not sure how to check this, also not sure why this would suddenly happen. Have tried drying out water in bottom and in drain and salt reservoir when the cycle stops and looked under black panels underneath which is suggested as a fix but no water I can see to mop out here. Anything else I could try? Thanks.