Whirlpool 4322452 manual Venting, Regulator Diagnostics

VENTING

Pressure regulators contain an air vent in the upper chamber to allow a free flow of air in and out of the chamber during operation (see Figure 2-7). The vent’s secondary purpose is to safely control the flow of gas to the atmosphere (200cc-per-hour or 7 BTU-per-hour) in case the diaphragm ruptures. If the vent is partially or completely plugged, the regulator will become sluggish. It can also become fixed in the high or low position, depending on which position the diaphragm was in when it became plugged.

Vent (Through

Hole In Cap)

Cap

Figure 2-7

REGULATOR DIAGNOSTICS

Common causes for regulator failure are:

A. Ruptured diaphragm.

B. Broken or worn valve.

C. Debris accumulating around the valve seat.

D. Restricted (plugged) vent.

E.Internal corrosion due to water in the L.P. gas system. Keep the tank full to prevent this from occurring.

As a safety feature, the regulator will “lock-up” and restrict all gas flow during any situation that applies extreme pressure to the incoming gas supply line. The pressure regulator can be unlocked by removing the cap, and pushing down on the diaphragm with the eraser end of a pencil.

Usually the appliance regulator is replaced rather than serviced, since it has few replaceable or serviceable parts, and is a relatively inexpensive device.

Page 2-4