Service
- 108 -
Troubleshooting guide
3 - Thermal cutout
NO
YES
NO
YES
NO
YES
Check supply power voltage.
NO
YES
YES
NO
Measure the voltage through the
temperature limiter (FD1).
Has the temperature limiter been
mechanically tripped?
Is the voltage supply OK?
Is there 230 V between J8:45-46 on
the relay board (AA6)?
Check wiring.
Replace relay card AA6.
Can it be reset mechanically when
the temperature is < 80°C?
Was the hot water temperature
greater than 90°C when the alarm
was tripped, according to the alarm
log?
Check the function of contactors
QA1, QA2 and QA3.
Replace temperature
limiter.
Check the characteristics
of the immersion heater
sensor and that it is
correctly positioned.
Troubleshooting guide
Содержание FDCW100VNX
Страница 7: ...For Home Owners 6 For Home Owners ...
Страница 20: ...Installation 19 Installation ...
Страница 42: ...Control 41 Control ...
Страница 66: ...System description 65 System description ...
Страница 81: ...Service 80 Service ...
Страница 138: ...Service Component replacement HM270V FDCW100VNX K E L LEK 1 2 5 6 LEK 3 4 LEK 7 LEK LEK LEK Component replacement ...
Страница 148: ...Components 147 Components ...
Страница 155: ...Technical data 154 Technical data ...
Страница 156: ...Technical data Electrical circuit diagram 155 Electrical circuit diagram HM270V ...
Страница 157: ...Technical data Electrical circuit diagram 156 ...
Страница 158: ...Technical data Electrical circuit diagram 157 ...
Страница 159: ...Technical data Electrical circuit diagram 158 ...
Страница 160: ...Technical data Electrical circuit diagram 159 ...
Страница 166: ...Technical data 165 Dimensions Indoor unit 32 32 55 95 65 52 185 40 42 645 30 60 1760 350 337 127 500 550 Dimensions ...