What should you consider when repairing a commercial oven that has been used for a long time?

Many catering institutions are using commercial ovens, and the probability of failure increases with the increase in use time. For example, Junhong Electrical Appliances encounters more problems such as commercial ovens taking too long to heat up. In fact, for this kind of problem, we only need to follow the smooth investigation of the heating components, thermostat and power supply fan to find the reason why it is not heating. Next, we will take a specific case as an example to talk about how to quickly solve this kind of problem.

I received a call from a customer before and the problem he encountered was that the commercial oven took too long to heat up. Junhong maintenance personnel immediately came to repair the problem. The problem that occurred this time was a Rational SCC 61 commercial oven. The problem was that after presetting the temperature, it could not be heated on time. The temperature would also be high and low. Experienced maintenance personnel were trying to fix the oven. After opening the back cover of the furnace, it was found that the heating tube had obvious signs of scorching and breakage, so the original heating tube was immediately replaced. During the process, a multimeter was also used to measure the resistance values ​​of other heating components to ensure that there were no traces in other places. After installing and running the problem, the oven can heat normally.

When encountering a commercial oven that takes too long and fails to generate heat, in addition to the failure of the heating components, it may also be a problem with the thermostat, such as when I repaired an Unox XEVC-2011-EPR commercial oven. , probably no burn marks were found behind the back cover, and the cooling fan was running at the same time, so the maintenance personnel measured the resistance of the thermostat and found through professional investigation that the thermostat was faulty. Such electronic components can only be replaced directly. Therefore, the maintenance personnel came to the door the next day and installed an original thermostat compatible with the Unox oven. This not only repaired the oven, but also ensured long-term stable use.

What I shared above is how to troubleshoot and solve the problem when a commercial oven takes too long to generate heat. Usually, heating components and fans can be judged directly by visual inspection, while thermostats, etc. need to be professionally checked and repaired using a multimeter. .