Proofer Problems - Nu-Vu SUB-123P Service And Repair Manual

TROUBLESHOOTING GUIDE

Proofer Problems

The proofer is not heating up
Does the proofer display read "SENSOR" or "SENSOR FAULT"?
Yes – Cycle power to entire unit off then back on
No- Is there an asterisk next to the proofer temperature on the display?
There is no moisture in the proofer
Is there a water line connected to the unit?
Yes – Is the water line to the unit turned on?
No – Connect a water line to the unit and turn the water supply on
The display reads "CHECK WATER SUPPLY"
To clear the message, press the enter button. After clearing the message, check that the water
supply is connected and is turned on. Also verify that the nozzle is spraying water.
®
NU-VU FOOD SERVICE SYSTEMS
2
page
Does the proofer display still read "SENSOR"?
Yes – Replace proofer sensor
Yes – Check proofer heating elements
No – Is the actual proofer temperature on the display higher than the set-point?
Yes – Replace proofer sensor
Yes – Is there an asterisk next to the proofer humidity on the display?
Yes – Remove proofer element cover
Is the nozzle spraying water? (It should spray every 20 seconds)
No - Is the actual humidity on the display higher than the set-point?
Yes – Replace proofer sensor
No – Turn on water supply to the unit
Sales Fax (906) 863-5889 ♦ Service Fax (906) 863-6322
SUB–123P SERVICE AND REPAIR MANUAL
No – Can you hear the solenoid click?
Yes – Clean nozzle
No – Replace solenoid
Drawing 2
MENOMINEE, MICHIGAN 49858-0035
(800) 338-9886