Troubleshooting an W-1 Low Voltage Error Code

Procedure

SHOCK HAZARD To avoid electrical shock, perform relay checks or transformer checks as described as instructions.

The following checks are performed with the wall circuit breaker closed and the main power switch in the ON position. Extreme caution should be taken. Make connections before applying power, take reading, and remove power before removing meter leads, or electrical shock could result.

1. Verify incoming voltage is approximately 208 VAC.

   1. Press and hold the Program button for 5 seconds to enter Level 2 Programming.

   2. Ensure Setup Mode SM-2 is set to 208VAC.

   3. Ensure T-13 is set to 208VAC.

   4. Ensure T-15 is calibrated to 208VAC (100%).

2. Test transformer for 24V with cook/pump switch off.

3. If 24V are present, turn switch to cook.

4. Start a Test cook cycle in Pressure mode.

5. Watch voltage to see if it remains constant. If transformer voltage goes below 24V, this may indicate a problem with the pressure solenoid valve and the W-1 error will likely occur.

6. After the cycle completes, change fryer to Open mode.

7. Begin another cook cycle to test transformer voltage.

8. Watch voltage to see if it remains constant. In Open mode, the pressure solenoid valve should not be energized. If the 24V remains constant and the W-1 does not occur, the solenoid valve may be dirty or damaged.

9. Check solenoid coil resistance and check for debris around solenoid.

10. Tighten or clean all connections and properly install the retaining clip.

11. Change the switch back to Pressure mode and run a cook cycle. If the W-1 error does not occur, the issue is resolved.