Thermo 90 S / Thermo 90 ST Table of contents
III
9Repair
9.1 General.................................................................................................................................................. 901
9.1.1 Work on stripped-down components........................................................................................... 901
9.2 Dismantling and assembling.................................................................................................................. 902
9.2.1 Electrical connections (Thermo 90 S).......................................................................................... 902
9.2.2 Changing the circulating pump.................................................................................................... 903
9.2.3 Changing the temperature limiter ................................................................................................ 904
9.2.4 Changing the temperature sensor............................................................................................... 904
9.2.5 Changing the combustion air fan................................................................................................. 906
9.2.6 Changing the burner, flame monitor and glow plug..................................................................... 907
9.2.7 Changing the burner head........................................................................................................... 909
9.2.8 Changing the heat exchanger ..................................................................................................... 910
10 Packing, storage and shipment
10.1 General................................................................................................................................................ 1001
