This article explains how to use the Steam Oven Service Manual (MODULAR) by Boretti.
A manual test procedure has been defined to run the end of assembly line test or checking functions after service operation. All the inputs and outputs of the system must be checked. The oven functionality must be complete after the test. The MANUAL TEST must be completed until the writing TEST END appears otherwise the oven model configuration will be lost. When the electronic is not configured (new), the Manual test starts automatically at the first power-up. SW versions are displayed: FW MASTER: “MP**” (for power boards - main power) FW SLAVE: “MP**” (for power boards - lower power board if present) FW DISPLAY: “MD**” (for display board) N KEYBOARDS: 1 to 4 FW KEYBOARDS: “MT**” (for touch key boards) FW DISPLAY FLASH: “MF**" (for customization display board) The display shows the “SERVICE TEST” message and the buzzer must beep for 5 seconds. Holding UPP Key the display shows the PRODUCT TYPE: (“Eg. OM**, OM**, .......). Select the correspondent Oven Model and press start twice to confirm. The control performs an auto reboot and SW versions are showed again. NOTE: (after 5 minutes from power up this special service menu will no longer available, the procedure must be performed to have enable it again). (THIS PROCEDURE MUST BE PERFORMED BY SERVICE TECHNICIAN ONLY) IMPORTANT: The MANUAL TEST procedure can be activated only after power on. NOTE: (after 5 minutes from power up this special service menu will no longer available, the procedure must be performed to have enable it again). a) To enter in the MANUAL TEST to configure the Oven Model in case of board replace follow the same procedure as the Configuration section 2.5 b) In case the Oven Model is already configured is possible to perform the Manual Test as verification through the following procedure: At power-up when the LOGO MESSAGE appears press simultaneously the LEFT and UP (unlighted) keys for 5 seconds a beep sounds and the SYSTEM menu is showed automatically> Select Manual Test and press START. (THIS PROCEDURE MUST BE PERFORMED BY SERVICE TECHNICIAN ONLY) SW versions are displayed: • FW MASTER: “MP**” (for power boards - main power) • FW SLAVE: “MP**” (for power boards - lower power board if present) • FW DISPLAY: “MD**” (for display board) • N KEYBOARDS: 1 to 4 • FW KEYBOARDS: “MT**” (for touch key boards) • FW DISPLAY FLASH: “MF**" (for customization display board) Note: Now the control is waiting for an operator input. Always press the INC key to continue with the next step. Pressing DEC key must allow to go back to former steps. The display top box indicates the SERVICE TEST: • All RED key's led switch ON • All WHITE key's led switch ON • The display switches ON showing a white background • • • Automatic detection of all keys function, for each key board a couple of keys have to be pressed checking the correct description on the display. Meat probe. “MEAT PROBE DISCONNECTED” If the option is not provided move to the next step, otherwise insert the probe and the display have to show “MEAT PROBE CONNECTED” in conjunction with the internal temperature value. S00: DIELECTRIC TEST - The main relay or relays in case of double oven have to be closed and all heating elements relays opened. (I this step the dielectric test has to be performed ONLT BY THE MANUFACTURER). In the bottom box is showed the Cavity under test: SGL or UPP/DBL in addition to the OM** configured • S01: OVEN LIGHTS - relay closed • S02: CONVECTION FAN - relay closed • S03: COOLING FAN - relay closed Every heating element must turn on independently just to allow an external DEVICE to measure the WATTEGE or AMPERAGE. • S04: DOUBLE LINE BREAK RELAY - The first heating element relay (lower HE) must be actuated without the DLB relay. It's a 0W power test to check that the DLB relay is not shorted. (verify the amperage). • S05: BOTTOM ELEMENT - The heating element relay must be actuated together with DLB relay (verify the amperage). • S06: BROIL ELEMENT - The heating element relay must be actuated together with DLB relay (verify the amperage). • S07: RING ELEMENT - The heating element relay must be actuated together with DLB relay + convection fan (verify the amperage). • S08: BOILER ELEMENT - The heating element relay must be actuated together with DLB relay (verify the amperage). • S09: The display has to show the temperature value actually measured by the electronics into the cavity and the temperature of NTC ambient on power board. end test: confirm the finalizing the configuration in case of unfinalized new board.
⚠ ATTENTION: at the end of Manual Test the power up must not be performed. In case a factory reset is needed. Factory Reset At power-up press [SET] key than press simultaneously the DOWN and UP (unlighted) keys for 5 sec. A message will be showed, press “START” to confirm.