Winterhalter PT ClimatePlus Series, Manual

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12
3A
Solenoid valve (O7) is “sticking” (is constantly open)
Fresh water constantly flowing through the intermediate circuit into the
boiler
Remedy: Replace solenoid valve.
3B
Inner tube of the coaxial heat exchanger dirty
Remedy: Clean / replace
3C
I22 temperature sensor defective
Remedy: Replace temperature sensor kit.
3D
Calcified plate heat exchanger
Remedy: Descale plate heat exchanger (

7.2).
3E
Lack of refrigerant
Indication: constant bubbling in the inspection glass
Remedy: Have repair carried out by experienced refrigeration technician.
3F
Defective thermal expansion valve
Remedy: Have repair carried out by experienced refrigeration technician.
3
Heat pump is working, but tank temperature cannot reach the rated
temperature