Recommended Preventive Maintenance - Cecilware GB5MF-IT Operation Manual

Gourmet multi-flavor dispensers

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Table of Contents

TESTS

1) Water Inlet Valve Test

Turn power off. If the water level rises inside the tank, the Water Inlet Valve is leaking. Disconnect

wires from the Water Inlet Valve coil and connect a 2 wire line cord to the terminals. Plug it into a

115V outlet. If water flows in and stops when you pull it out, the Valve is working fine. Repeat this

test a few times. The problem may be in the Probe. If the water does not flow in when the cord is

plugged into an electrical outlet, the Solenoid coil may be damaged, opened or the valve may

have an obstruction preventing the water from flowing in. Clean or replace it.

A Check Valve is installed to prevent backflow.

To check proper function of Check Valve, disconnect water line from the Check Valve, check for

dripping from the disconnected end of the Check Valve. If it leaks replace it.

2) Water Level Probe Test

If there is a lack of water, you will get an error message on the LCD window. Check the probe as

follows:

Turn on the power and water supply. Check inside the tank to make sure the water is not touching

the Probe. Pull the wire and terminal out of the Probe rod. If water starts f l owing into the tank, the

Probe may be grounded, due to excessive liming. Check with Ohm meter. Clean or replace.

3) Relay Test

Turn Power Switch ON.

Measure Voltage across Output "COM" to Ground. Should read 120 V.

Measure Voltage across Input "NO" to Ground. Should read 120 V.

Measure Voltage across Input to Coil. Should read 24 VDC.

4) Thermistor Test

Thermistor senses the water temperature in the tank. If either of the two leads is shorted to the

metal housing, an error message will result. Check with an ohm meter if either lead is grounded.

To check calibration of the thermistor, use an Ohm meter to check resistance values at the below

temperature.

If the above values vary 2 Ohm or more, replace the thermistor.