Dirty supply gas can cause problems

Temperature controllers vent regularly, so if you hear a hissing noise emanating from it, there may be an issue. Check where the supply gas is coming from and make sure it's coming from a dry, high location. If your supply gas contains any garbage or liquid, the pilot plug may become clogged.

Replace the spring

If the supply gas is clean, it's time to see if the Temperature controller has any internal problems. It could have developed a faulty diaphragm, a damaged o-ring, or a weakening pilot spring over time. You can now request a repair kit from the manufacturer to replace the necessary parts.

Go for separable sockets

You can utilize a detachable socket, sometimes known as a thermowell, to remove your temperature controller. The heat is transferred to the controller probe via the high-temperature grease in the socket. The socket will assist you in removing the controller so that you can repair and reinstall it while maintaining vessel pressure.

Examine for a bent probe

There could be a bend in the probe causing temperature changes. The probes on temperature controllers are quite sensitive. It can create irregular temperature variations if the exterior tube bends and comes into contact with an interior bi-metal. Before installing your temperature controlling system, make sure to handle it gently and avoid holding it by the probe. A bent probe can't be repaired, thus the only option is to replace it.

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