Repair commercial water heaters, the operating environment is very serious!

Repair commercial water heaters, the operating environment is very serious!

When using commercial electrical appliances, the operating environment cannot be ignored. For example, many commercial water heaters repaired by Hong Kong Junhong Electrical Appliance Repair Center have problems related to water quality and daily use environment. Usually when receiving a repair call, the dispatched technician will pay attention to the equipment usage environment after coming to the door. For example, when repairing a commercial water heater, attention should be paid to factors such as the operating environment and operating habits. Next, let’s take the Smith water heater repaired last month as an example to talk about its repair. Skill.

1. Smith commercial water heater does not heat

Last month, Hong Kong Junhong Electrical Appliance Repair Center received a repair call from a restaurant. The boss described the fault as a malfunction of a Smith commercial water heater. Although the indicator light was always on, it was not heating. The technician first understood the environment. , and then conduct detailed investigation.

(1) First, measure the circuit of this Smith water heater to confirm that there is no short circuit or open circuit and that the voltage is stable.

(2) Because the water quality of the water source used by the water heater was observed to be poor, after confirming that there was no abnormality in the circuit, the power was cut off and the heating element was inspected. It was found that due to poor water quality, there was a lot of scale on the surface of the heating element.

(3) After testing the heating element, it was found that it did not malfunction, but heated slowly due to excessive scale. Next, the thermostat was tested and it was found that the thermostat had malfunctioned due to aging, and was subsequently replaced. Original thermostat.

2. Smith commercial water heater screen does not display

The case just introduced was a commercial water heater repair case last month by Hong Kong Junhong Electrical Repair Center. We also encountered a display failure before, and it was also a Wellsmith water heater. At that time, the water heater was repaired as follows:

(1) When repairing a commercial water heater, you must first check the circuit of the water heater. For this Smith water heater with a malfunctioning screen, use a multimeter to detect an open circuit.

(2) Because I smelled a slight burning smell at the control panel, I disassembled the control panel when the power was cut off and found that some areas were in a burnt state.

(3) The problem was found through the multimeter. The capacitor on the control motherboard was burned out. The technician used a heat gun to replace the damaged capacitor, and then re-energized the control panel and returned it to normal.

From the above cases shared by Hong Kong Junhong Electrical Repair Center, we can see that the environment cannot be ignored when repairing commercial water heaters. Both water quality and daily cleaning of commercial water heaters will affect its failure rate. Therefore, you should also develop a daily routine when using commercial electrical appliances. Maintenance habits.