Powrmatic Heater LX25

Ensure the equipment is powered off

Disconnect the electrical plug from the R2R board

Squeeze and pop out the indicator bezel from the front panel

Reassemble the indicator bezel into the front panel

Reconnect the electrical plug to the R2R board

Disconnect the electrode leads from the control box

Remove the screw securing the electrode assembly to the burner assembly side plate

Withdraw the electrode assembly

Fit replacement electrode assembly

Ensure the rectification electrode is 10 - 12mm forward of the burner

Disconnect the fan electrical connections from the main terminal strip

Clean impeller by brushing with a stiff brush

Re-assemble using a new sealing gasket to the fan mounting box

Use silicon sealant around the joints

Remove the two screws securing the cover

Disconnect electrical connections

Pull off the sensing tube from the air pressure switch

Remove the screws fixing the air pressure switch

Fit replacement air pressure switch

Remove the burner assembly as described in Section 2.7.2

Remove the end plates of the burner assembly and the central burner support plate

Exchange burners as required and reassemble components in reverse order

Re-commission the appliance as described in Section 2.6