Weil-McLain Boilers: "SlimFit"

Re: High Gas Pressure Fault

The SlimFit boiler has a factory High Gas Pressure Switch mounted inside the boiler cabinet, on the right-hand side, below the inducer motor.

A LED light on the High Gas Pressure Switch indicates the status:

• Red = Lockout
• Green = Ok

► To reset the boiler lockout you must first reset the High Gas Pressure Switch.

To reset the HGPS:

• Press the red button through the plastic cover of the switch.
• When the switch has been reset, the red light will go off.

To reset Boiler (see Related Article below)