GEMINI 120A
TROUBLE SHOOTING
PROBLEM: WATER DOES NOT FLOW INTO HEATING TANK
POSSIBLE CAUSE | SOLUTION | |
1. | Water line turned off or | Open the water line and make sure water flows to the brewer. |
| filter clogged up. |
|
|
|
|
2. | Water inlet valve coil | Turn off brewer. Disconnect wires from water inlet coil terminals |
| burned out | and connect a power cord to the terminals. Plug cord into a 110v |
|
| outlet and verify that water flow when plugged in and stops when |
|
| cord is disconnected. If valve does not respond to this test, replace |
|
| the valve. |
|
|
|
3. | Grounded probe (item | When water in the heating tank is below the probe tip, yet water is |
| #12) | not refilling, pull the wire off the probe terminal. If water starts flowing |
|
| into the tank, find ground, clean or replace the probe. |
|
|
|
4. | Defective or burned out | Pull the wire from the probe terminal. With a volt meter, check the |
| water level control board | voltage at the water inlet coil terminals. This should read 110 to 115 |
| (item #3) | volts. If no voltage is present, check the water level control board. |
|
| Make sure that the back of the board is grounded securely to the |
|
| mounting bracket. Check for loose wire connections. Replace |
|
| board. |
|
| |
PROBLEM: WATER IN HEATING TANK OVERFLOWING | ||
|
| |
POSSIBLE CAUSE | SOLUTION | |
|
|
|
5. | Defective water inlet | Turn power off and observe the water level in the heating tank. If |
| valve (item #28) | water continues to flow in, clean or replace the valve. |
|
| |
6. Probe limed up (item #12) | Pull wire off from probe terminal. Touch the water tank shell with the | |
|
| terminal at the end of this wire. If water stops flowing, clean or |
|
| replace the probe. |
|
|
|
7. | Loose or ungrounded | If probe is okay, check the water level control board. The water level |
| water level control board | control board must be securely grounded. Check for loose connec- |
| (item #3) | tions. Check for voltage at the inlet valve terminals. Replace board. |
|
| |
PROBLEM: WATER IN TANK DOES NOT GET HOT OR WATER TEMPERATURE TOO LOW | ||
|
| |
POSSIBLE CAUSE | SOLUTION | |
8. Thermostat is off (item #31) | Check the thermostat (item #31) to make sure it is in the ON posi- | |
|
| tion. Turn the thermostat stem clockwise until it stops. |
9. Burned out heating | Check element for continuity and/or check with clamp ammeter. This | |
element. | should show a reading of approximately 15 amps. If no power is | |
|
| going through element, replace it. |
|
|
|
- 3 -