Hello everyone. I have a problem with a heater orbis a keypad. The heater in 4 did not heat anything and has low pressure but allows the diaphragm to open. Wash your shirt, change your diaphragm, lubricate the piston and shaft. The issue is that despite having done all this the water heater remains the same. The keypad is wrong too and I will change it. Another problem is that the pilot has a good flame but when the burner ignites the pilot's flame shrinks. I was thinking about cortsr the spring and check the stopcock Any comments would help me a lot already thank you very much

Hello: if the pilot flame shrinks when it is switched on, it is due to lack of gas pressure. the serpentine is uncovered with 50% lowered muriatic acid with water, fix the radiator of the serpentine, the fins must be straight and the healthy jacket is important because if it is in poor condition it does not heat make sure that the pipe is clean check the faucet filters the flower shower greetings.