The symptoms of frozen wall hanging furnace are actually very obvious. First of all, you will see the phenomenon of water leakage, and there will be a big sound when it is opened, which is completely different from the usual, so, what will the wall hanging furnace freeze? When it’s cold, of course! Remember to prevent the lower wall hanging furnace is frozen in winter, so as to be able to rest assured of heating.
I. What state does the wall hanging furnace show when it is frozen
1. The sealing surface of the water valve body of the wall hanging furnace is deformed, the screw is loose, and water leakage will occur when the wall hanging furnace is opened.
2. The water pump of the wall hanging furnace may break, and it may make a loud noise when opening the wall hanging furnace.
3. The main heat exchanger of the wall hanging furnace will be seriously deformed or even broken.
Two. Wall hanging furnace what situation will freeze
If the temperature stays relatively low for a week to ten days, the fireplace may indeed freeze.
Therefore, in the use of wall hanging furnace, we must pay attention to the temperature problem. At the same time, remember that when the weather is relatively cold, it is best not to turn off the wall mounted furnace, if the wall mounted furnace cannot operate due to a power failure, you can drain all the water.
Three. What failures may occur after the wall hanging furnace is frozen
The interface between the replacement plate and the water valve body is leaking
The replacement plate is in a relatively low position in the whole wall-mounted boiler, and it also has a certain water capacity. Take the commonly used 12-layer plate changer as an example, its water storage is about 300ml. When the water in the changing plate freezes, the changing plate will expand, and the sealing surface matching the water valve body will also protrude and deform, resulting in the loosening of the fixing bolt, creating a gap and causing water leakage.
Water pump freezing crack and leakage
Because the pump has the largest amount of water stored in the pump seat chamber, the common frozen and broken part is the pump seat. Whether it’s made of plastic or metal, it can’t resist the massive expansion force of water condensing into ice. In severe cases, the shielding sleeve inside the motor may break. If not replaced in time, leakage will occur and even cause serious personal safety accidents.
The main heat exchanger is deformed or broken
After the interior of the main heat exchanger is frozen, the inner diameter of the copper tube will increase, and the heat exchange fin over the copper tube will undergo wavy deformation. If the main heat exchanger is a sleeve type, the internal bathroom and heating pipes can easily leak due to support. The burst of the main heat exchanger usually occurs after the tube freezes and becomes blocked. When the wall mounted furnace is open and burning, the inlet and outlet connection pipes of the main heat exchanger are blocked due to freezing and cracking, and the temperature probe (NTC) and limit temperature switch cannot detect the main heat exchanger. Heat exchanger, due to continuous combustion, the water pressure inside the main heat exchanger will increase dramatically, and eventually break at the weakest point of the main heat exchanger tube, which is very dangerous.
