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warmhaus.com.tr
CONNECTION OF THE OUTDOOR TEMPERATURE SENSOR AND ITS ACTIONS
ON THE SCREEN:
f the Outside Temperature Sensor is connected, house symbol seems always active on the screen; If
Frost Protection System is active, house symbol on the screen flashes on and off.
If Outside Temperature Sensor is short circuited or WRONG PARAMETER
OR WRONG TERMINAL CONNECTION, ALL 19 + blinking house symbol.
Is the wiring securely connected at both the boiler and
Outside Sensor?
YES
YES
OUTDOOR SENSOR FAULT
Replace PCB
Replace the OUTDOOR SENSOR with new&orginal spare
Replace the OUTDOOR SENSOR with new&orginal spare
Securely connect the wiring at the Terminal Block
and the PCB
Disconnect the wires to the Outside Temperature Sensor.
Check the resistance using a suitable multimeter connected across the Outside
Temperature Sensor’s terminal pins.
At 0° C expect 31,000 - 35,000 Ohms
At 15°C expect 15,000 - 16,500 Ohms
At 30°C expect 7,700 - 8,500 Ohms
Is the Outside Temperature Sensor value correct?
Is the wiring securely connected between the PCB and Outside
Temperature Sensor
NO
NO
NO
YES
4.11. OUTDOOR SENSOR FAULT
Designation
Manufacturer
Type-model / Technical data
Release date
28.11.2017
Fault Finding; Outside Sensor
Warmhaus
Viwa 90-115-125-150
Rev. No:
0
Drw. No:
WH.17.731
Outside
Sensor
DHW / TANK SENSOR
EXTERNAL SENSOR
OPENTHERM
