# Angelo Po Combi Ovens: Installation, Use and Care > How to install, run, clean and troubleshoot Angelo Po ACT.O and PracticO combi ovens, electric and gas, from Angelo Po's own instruction manuals. How-to by Norpex. Published 2026-10-15, updated 2026-10-15. Canonical: https://norpex.ca/guides/angelo-po-combi-ovens-guide ![Electric combi oven with a touch screen and a glass door](https://norpex.ca/m/c6/37/c637336db7d3579b731d876919f7063d5a80b052e7dbed34a5c5f060d98a3bed.jpg) Pictured: [Angelo PO – ACT.O Electric Combi Oven 8 X GN 2/1 With Automatic Washing – AT82EW](https://norpex.ca/product/angelo-po-act-o-electric-combi-oven-8-x-gn-2-1-with-automatic-washing-at82ew) This guide explains how to properly install, use, clean and troubleshoot Angelo Po ACT.O and PracticO combi ovens, based on the manufacturer’s manuals. A qualified installer must handle gas, water and electrical connections; operators should follow the daily cleaning schedules and refer to the manual for alarm codes. ## Key takeaways - ACT.O series ovens are covered by manual 3413811; PracticO series by manual 3395290. - Installation clearances and utility specs are in the installation manual; a licensed installer must do all connections. - Daily operation uses the touchscreen and knob; cooking modes include convection, steam, combination, and more. - The ACT.O reminds you to wash after a set number of cooking hours (1 to 12) and to descale after a set number of steam hours (1 to 15). - Alarm codes such as H2O, OPE, CLE and CAL are explained in the manual's alarm table; repairs belong to authorized technicians. ## Which manual covers your oven The Angelo Po combi ovens in our list include ACT.O electric and gas models (AT61E, AT61EW, AT61G, AT61GW, AT101E, AT101EW, AT101G2, AT101GW, AT82E, AT82EW, AT82G, AT82GW, AT122E, AT122EW, AT122G, AT122GW, AT201E, AT201G, AT202E, AT202EW, AT202G, AT202GW) and PracticO countertop electric models (TT61, TT101, TT623). The ACT.O series is covered by Angelo Po instruction manual 3413811. The PracticO series is covered by instruction manual 3395290. ## Installation requirements The manufacturer’s installation manual for each model provides required clearances, utility specifications, and connection details. A qualified, licensed installer must perform all gas, water, and electrical work in accordance with local codes. The manuals stress that the room temperature must be between 5°C and 40°C, and relative humidity between 50% (at 40°C) and 90% (at 20°C). The installation site must be free of electromagnetic interference, explosive gases, and corrosive substances. Before commissioning, the installer must verify that all electrical connections are secure and that the appliance is connected to an equipotential bonding system. The manuals also warn that the appliance must not be installed on uneven or sloped floors to prevent tipping. For specific clearance figures and utility requirements, consult the installation manual for your model. ## Daily operation and controls To switch on the oven, first turn on the master switch and water supply tap, then press the on/off button. The display will show a reminder for washing and descaling; tap OK to proceed. The ACT.O models feature a 10" capacitive touchscreen with a scroller selector knob, while PracticO models have a 7" touchscreen. The main screen provides access to cooking functions, settings, and cleaning programs. The main menu includes Manual Cooking, Automatic Cooking, Multi-Step Cooking, Special Cooking, and other functions. For ACT.O, additional functions like Multi-ActO and Cook&Chill are available. The PracticO menu includes Manual Cooking, Multi-Cooking, Cooking Programs, and Cleaning. Both series allow you to set cooking parameters by touching the screen or turning the knob to adjust values, then pressing to confirm. ## Cooking modes and programs All models offer convection (86–572°F dry heat), steam (86–257°F pure steam with three selectable intensity levels), and combination (86–572°F hot air plus steam, adjustable in 5% humidity steps). Low temperature/Delta T cooking uses a core probe to guide the process. Regeneration mode evenly reheats plated or bulk food. The ACT.O manual describes manual cooking where you set temperature, time, and humidity; automatic cooking with pre-set programs for different foods; multi-step cooking for sequences; and special cooking modes including smoking, pasteurisation, holding, BT cooking, dry, delta T, vacuum, and regeneration. The PracticO manual covers similar manual and program-based cooking, with favourites and recurring tasks. Always remove the core probe from food before taking it out of the oven, and open the door slowly to avoid steam burns. ## Cleaning and routine care The manuals require cleaning the oven chamber after each use. The ACT.O and PracticO ovens have automatic washing programs that use a high-efficiency water and detergent recirculation pump. For ACT.O, the manual states that after N hours of cooking (max 12 h, min 1 h), a notice reminds you to wash; after Y hours of steam use (max 15 h, min 1 h), a descaling notice appears. You can run an automatic or semi-automatic cleaning program. For semi-automatic, you manually add detergent. The manuals also detail manual cleaning steps: clean the cooking chamber and humidity probe, the condensation collection channel and tank, the air filters, and the vent. The PracticO manual similarly describes cleaning programs and manual cleaning of the chamber, condensation channel, air filters, and vent. Always use suitable detergents; the ACT.O models specify detergent in Power Pearls microgranules and descaling agent. Do not open the door during a washing cycle to avoid chemical emissions. ## Troubleshooting and alarm indications The ACT.O manual (3413811) separates what an operator can fix from what needs a qualified technician. If the oven does not switch on, a fuse may have blown (replacing it is covered in the installation manual) or a safety device such as the safety thermostat or overload cutout may have tripped and need its reset button pressed; a damaged electronic board is a call to after-sales service. A cooking or cleaning cycle that will not start or stops suddenly means either a damaged control board or an alarm on the display. The alarm table explains the codes. H2O means no water in the chamber or water pressure too low: check the mains water and its pressure, and convection cooking can still run meanwhile. H2OL is the same fault during washing, and its variant for missing drain water blocks cooking until a full wash or emergency rinse has been completed. OPE asks you to open or close the door, and the cycle waits until you do. CLE at switch-on means cleaning is required, and CAL means descaling is due. Press RESET to clear an alarm, and START if the cycle does not restart by itself; if a fault persists, contact the after-sales service. ## Service and support For any service needs, contact Angelo Po’s authorized service network. When requesting service, provide the appliance model and serial number from the nameplate, and describe the fault. The manuals state that all maintenance requiring technical expertise must be carried out by qualified personnel. Norpex does not perform installations or repairs; a licensed technician must handle all gas, electrical, and water work. For questions about a specific model, ask Norpex. ## Common questions ### Can I install the oven myself? No. A qualified, licensed installer must handle gas, water, and electrical connections according to local code. The installation manual provides clearances and utility specs. ### How often should I clean the oven? After use, run an automatic or semi-automatic washing program. On the ACT.O the oven reminds you: a washing notice after a set number of cooking hours (between 1 and 12) and a descaling notice after a set number of hours of steam use (between 1 and 15). ### What should I do if an alarm code appears? Look the code up in the manual's alarm table. H2O, for example, means no water or low water pressure, OPE asks you to open or close the door, and CLE and CAL mean cleaning or descaling is due. Press RESET once the cause is cleared, and call the after-sales service if it persists. ### Can the oven still cook if the water supply fails? Partly. According to the ACT.O alarm table, with an H2O alarm (no water in the chamber or low pressure) convection cycles can still be carried out, while the H2OL alarm for missing drain water during washing blocks cooking until a full wash or emergency rinse has been completed. ## Related guides - [Convection Oven vs Combi Oven: Which Does Your Kitchen Need?](https://norpex.ca/guides/convection-vs-combi-oven) - [Restaurant Equipment Checklist: What to Buy to Open in Canada](https://norpex.ca/guides/restaurant-equipment-checklist) ## Shop the catalogue - [Combi Ovens](https://norpex.ca/products/combi-ovens-convection-and-combi)