Table Of Contents - STIEBEL ELTRON AQ 35 E-2 Service Manual

Warning ......................................................................................................................................................... 3
General product information ......................................................................................................................... 4
Technical Data................................................................................................................................................ 5
Wiring Diagram .............................................................................................................................................. 6
Troubles shooting .......................................................................................................................................... 7
Root Cause Analysis ....................................................................................................................................... 8
1. Heating Elements Checking ............................................................................................................... 8
2. TRIAC Checking .................................................................................................................................. 9
3. Flow Switch Checking....................................................................................................................... 10
3.1) Set unit at vertical direction ......................................................................................................... 10
3.2) Set unit to upside down (turn 180 ˚) direction ............................................................................. 11
3.3) The other way to activate Flow Switch. ........................................................................................ 12
4. PCB Control Checking....................................................................................................................... 13
5. Thermostat Resetting ...................................................................................................................... 14
6. System Confirm ................................................................................................................................ 15
7. AQ (E) Parts List................................................................................................................................ 16
7.1 Spare Parts list, Model: AQ 35E ..................................................................................................... 17
7.2 Spare Parts list, Model: AQ 45E ..................................................................................................... 18
7.3 Spare Parts list, Model: AQ 60E ..................................................................................................... 19

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