The green LEDs
5 seconds from initial startup as follows:
Sequence Step | LED |
|
| Time LEDs are Lit | |
|
|
|
| ||
Min. |
| Max. | Avg. | ||
|
|
| |||
1 Minute Fill Cycle | 4 |
|
|
| 60 seconds |
Harvest Cycle | 1, 4, and 2 | 2 minutes |
| 20 minutes | 3 to 5 minutes |
Freeze Cycle | 1 | 5 minutes |
| 60 minutes | 30 to 35 minutes |
Reverse Pump Out | 1, 3, and 2 | 10 seconds | 20 seconds | factory setting | |
{Led 1 – Comp; Led 2 - HGV/CFM; | Led 3 – PM; | Led 4 - WV} | |||
The built in safeties shut down the unit and have alarms as follows:
No. of Beeps | Type of Alarm | Notes | |
(every 3 sec.) | |||
|
| ||
|
|
| |
1 | High Evaporator Temp. | Check for defrost problem (stuck HGV | |
| (temperature > 127°F) | or relay), hot water entering unit, stuck | |
| (53°C) | headmaster, or shorted thermistor. | |
|
|
| |
2 | Defrost Backup Timer | Orange LED marked H TIMER lights up. | |
| (defrost > 20 min.) | Check for open thermistor, HGV not | |
|
| opening, TXV leaking by, low charge, or | |
|
| inefficient compressor. | |
|
|
| |
3 | Freeze Backup Timer | Yellow LED marked F TIMER lights up. | |
| (freeze > 60 min.) | Check for F/S stuck closed (up), WV | |
|
| leaking by, HGV leaking by, TXV not | |
|
| feeding properly, low charge, or inefficient | |
|
| compressor. | |
|
|
|
To manually reset the above safeties, press the white alarm reset button with the power supply on.
6 | Low Voltage |
|
| (92Vac or less) |
|
|
|
|
7 | High Voltage | Red LED will turn off if voltage protection |
| (control voltage | operates. |
| > 147Vac ±5%) | The voltage safety automatically resets |
|
| when voltage is corrected. |
|
|
|
The output test switch "S3" provides a relay sequence test. With power OFF, place S3 ON and switch power to ICE. The correct lighting sequence should be none, 2, 3, 4, 1, & 4, normal sequence every 5 seconds. S3 should remain in the "OFF" position for normal operation.
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