My am-14 is eating the detergent. It use to last a month now less than one week. Is there a soleniod valve thatisn't closing?

Hello,
The over consumption of detergent could be caused by a couple of things. If the detergent is dispensed by an external chemical pump, the detergent probe may not be working correctly. The probe will cause the pump to dispense too much chemical if it is dirty or has hard water build up on it. You can check the probe and clean it of any debris. The probe is located in the bottom of the wash tank. Most chemical suppliers take care of these sorts of issues at no cost to the customer. If your rinse solenoid is not closing properly, this could cause the detergent to flow down the standpipe (overflow drain). This would make the chemical pump dispense detergent more often then usual. An easy way to check if your rinse soleniod is stuck open is to look at your rinse arms if water is flowing out of them and doesn't stop this would mean your solenoid is in need of repair.
Kind Regards