This article covers maintenance and cleaning of the STEAM OVEN by Boretti.
Oven preparation and pre-use
N.B. Disconnect the oven from the mains power, or move the omnipolar switch to OFF, before cleaning the oven. Before using the oven, thoroughly clean the inside using a soft cloth or non-abrasive sponge dampened with warm water and washing-up liquid. Insert the grill and drip pan in their respective tracks. Turn on the oven, see page 14 select the "Professional Cooking" function , see page 16 and set the temperature to 230°C. Operate the oven empty for about 30 minutes in order to remove any residues of manufacturing oil or grease which can produce unpleasant odours during cooking. Air the room during this operation. CLEANING AND MAINTENANCE OF OVEN AND ACCESSORIES To facilitate the cooking chamber cleaning operations, it is advisable to use the automatic process described on the following pages. Then it is advised to disconnect the appliance from the mains power supply. Use a damp sponge to remove any residues from the chamber walls after each use. Do not use steam cleaners to clean the oven. Do not use coarse abrasive material such as scourers, metal scrapers or steel wool to clean the glass of the oven door in order to avoid scratches that may cause the glass to shatter. DO NOT WASH THE FOOD PROBE IN THE DISHWASHER. The grill, pitcher and drip pan can be washed in the dishwasher. Empty the water pitcher after each use for hygiene reasons. After cooking, and when the oven has cooled sufficiently, use a soft cloth to dry any liquid remaining on the bottom of the cooking chamber. START CLEANING CYCLE Menu items: COOKING CHAMBER BOILER DESCALING COOKING CHAMBER The purpose is to facilitate the removal of any residue of food, grease, etc. after a cooking process. The oven fills the cooking chamber with a certain quantity of steam for a fixed period of time (10 min.). Activate the cooking chamber cleaning cycle with key (8) and follow the instructions provided on the display. When the cycle is finished and the following message appears: COOKING CHAMBER CLEANING CYCLE COMPLETE USE A CLOTH TO REMOVE DIRT use a soft cloth or non-abrasive sponge dampened with water to clean the oven. Do not use corrosive substances or liquids, do not use iron or pointed utensils. BOILER DESCALING This is a particular cleaning cycle suitable for removing the scale inside the boiler. Depending on the water hardness, a certain quantity of scale forms inside the boiler or steam generator that increases with the hardness of the water. See the section WATER HARDNESS on page 34 It is recommended that the descaling be performed as soon as the following warning message is displayed: DESCALING CYCLE RECOMMENDED FOR BOILER CAUTION: THE CYCLE HAS A FIXED DURATION OF 12 HOURS. THUS, IT IS ADVISABLE TO PERFORM THE CYCLE DURING THE NIGHT. Suitable descaler: It is recommended that CITRIC ACID MONOHYDRATE be used, which can be found at any ordinary pharmacy. Follow the safety and dosing instructions. Do not use vinegar or vinegar-based products. INSTRUCTIONS for boiler descaling process: Dosing: fill the pitcher with water up to the 0.6 L mark , add 5 teaspoons of citric acid monohydrate and dissolve. Insert the pitcher in the appropriate seat and start the descaling process with key (8). The appliance will display the time remaining until the end of the descaling process. When finished, a boiler wash and rinsing process will be carried out. See the section Boiler wash Boiler wash When finished, the system performs a boiler wash cycle and empties the dirty water into the pitcher. It will then be necessary to assist the appliance which will guide you step by step through the operations to be carried out. In summary, the necessary operations will be to empty the contents of the pitcher, rinse and fill the pitcher with clean water. This operation will have to be repeated several times. Water may drip from the filter container. Dry and clean with a cloth or small sponge. Pay attention to the white gaskets; make sure that they are present on the inner part of the filter container, otherwise position them correctly as shown below. RESET SETTINGS This function is used to reset the system in case of problems. Caution: All the system variables are returned to the original values and your own recipes are deleted. Select the item : “ RESET SETTINGS” with key (8) and follow the instructions provided on the display. At the end of this procedure, theoven will be set in STAND-BY mode. OVEN OFF MODE All the heating elements are deactivated, including the fan inside the cooking chamber and the light. The cooling fan and the fan located inside the cooking chamber deactivate a few minutes after the oven is turned off in order to allow rapid cooling of the oven. (Maximum cooling time: 20 min.) The keypad is deactivated except for the on/off key and the ALARM function keys. COOKING FINISHED MODE The control unit sounds a buzzer and deactivates all the heating elements, including the fan inside the cooking chamber and the light. The display shows the message: COOKING FINISHED Press any key to stop the buzzer, cancel the message and return the system to the ON conditions. Or press the On/Off key to turn the oven off. (see oven off mode) Otherwise the oven will turn off automatically after 5 minutes. WHAT TO DO IN CASE OF AN ANOMALY PROBLEM SOLUTION The oven does not work. Check whether the omnipolar switch or any residual-current circuit breaker (cut-out) of the electrical system is off. In case of problems with the electrical system, consult a qualified electrician. If the oven still does not work after resetting the omnipolar switch and/or residual-current circuit breaker, contact an Authorized Service Centre. The light inside the cooking chamber does not turn on. See the instructions on how to change the oven light bulb. The display shows Err and a number. This combination indicates a failure. See the error codes table on the following page. The system requires the time to be set. Probable electricity failure (Black-out). Set the current time. The draining of the water from the boiler occurs a long time after the end of a cooking process. For safety reasons the water from the boiler is pumped away only when the temperature has dropped below 90°C. The time necessary for the water to cool determines the pause before the draining starts. (this may last up to 20 min.) During this time, another cooking process can be started. Steam comes out of the oven during operation. Check whether the door is closed correctly. Check whether the seal is damaged with cracks, etc. In the second case, contact an Authorized Service Centre. The system displays a food probe temperature during operation without the food probe connected. Check the seal of the food probe connector cap inside the cooking chamber. If the cap is unstable, it must be replaced. Contact an Authorized Service Centre. WHAT TO DO IN CASE OF A BLACK-OUT In the case of a black-out, when the electricity is restored it may be necessary to reset the current time. The stored settings or recipes are not lost. If the black-out occurs during a cooking process, the process cannot continue. If a descaling or boiler cleaning process was in progress before the black-out, the process is aborted. When the electricity is restored, it will be necessary to drain the solution of water and citric acid monohydrate contained in the boiler. Follow the instructions shown on the display of the appliance. ERROR CODES TABLE The electronic system continually performs a series of diagnostic tests. If some parameters are incorrect, the control unit deactivates the functions and displays an error code (Err followed by three numerical digits); all the heating elements are turned off, including the fan inside the cooking chamber. The cooling fan remains on. Take note of the error code and contact an Authorized Service Centre, specifying the error code. Error Code Cause SOLUTION Err 001 BOILER overheat The causes of this alarm are: The fill pump does not pour the water from the pitcher to the boiler. The causes may be: a – empty pitcher b – a leak in the hydraulic circuit c – broken pump d – electronic failure in the power circuit (relay or relay control) Check that there is water in the pitcher. Turn the oven off and on again. If the failure repeats, take note of the error code and contact an Authorized Service Centre, specifying the error code. Err 002 Boiler protection alarm. The system de-energizes the GEN. relay in advance, and thus all the loads connected to it.
- Replace the power card Take note of the error code and contact an Authorized Service Centre, specifying the code. Err 003 Power card overheat: threshold value >=85° Check whether the oven is embedded in the furniture according to the instructions in this handbook. Check whether the tangential fan is operating correctly. Err 004 PT1000 cooking chamber sensor Cause: interruption or short circuit of the sensor or cables.
- Replace the PT1000 Contact an Authorized Service Centre, specifying the code. Err 005 Food sensor Cause: interruption or short circuit of the sensor or cables.
- Check the electrical connections.
- Replace the food probe. Contact an Authorized Service Centre, specifying the code. Err 006 Boiler thermocouple failure Cause: open circuit or short to earth.
- Replace the BOILER. Contact an Authorized Service Centre, specifying the code. Err 007 Cooking chamber steam presence thermocouple failure Cause: open circuit or short to earth.
- Replace the TC1. Contact an Authorized Service Centre, specifying the code. Err 008 Cooking chamber overheat
- Replace the power card Contact an Authorized Service Centre, specifying the code. Err 009 Failure of the ntc sensor on the power card Cause: open circuit or short.
- Replace the power card Contact an Authorized Service Centre, specifying the code.