Froling SP Dual compact Operating Instructions Manual page 61

Cleaning the flue gas temperature sensor
B1500423_en | Operating instructions Dual fuel boiler SP Dual compact
r Take off the cladding plates and clean them
r Check the primary air openings (A) inside the boiler for unobstructed air flow and
clean if necessary
r Unhinge the front air guide plate
r Clean the air openings (A) in the guide plate
r Check the air inlet inside the boiler for unobstructed air flow and clean if necessary
r Remove the insulating cover and thermal insulation
r Release the retaining screw and remove the flue gas temperature sensor from the flue
gas pipe
r Wipe the flue gas temperature sensor with a clean cloth
r Push in the flue gas temperature sensor until about 20 mm of the sensor remains
protruding from the bushing and secure with fixing screw
Servicing the system | 5
61